阅读说明：本技术 一种用于微波隔离器的信号间断性测试装置 (Signal discontinuity testing device for microwave isolator ) 是由 栾一鸣 于 2021-10-29 设计创作，主要内容包括：本发明公开了一种用于微波隔离器的信号间断性测试装置,涉及通信技术领域。本发明包括信号测试机构、间断调控机构、辅助移动机构和外屏蔽机构,信号测试机构包括微波隔离器、信号发生器和信号检测器,微波隔离器两侧的中部通过接线机构分别连接有信号发生器和信号检测器；微波隔离器上中部成向上的环状凸起设置,且环状凸起内阻尼连接有间断调控机构,间断调控机构前后下端的中央位置连接有辅助移动机构,且辅助移动机构外侧连接有外屏蔽机构。本发明通过设置间断调控机构、辅助移动机构和外屏蔽机构,解决了现有信号测试装置,采用连续性测试作业,成本高,且测试结构移动搬运的不便,同时,极易受外环境干扰,影响信号测试的准确性的问题。(The invention discloses a signal discontinuity testing device for a microwave isolator, and relates to the technical field of communication. The device comprises a signal testing mechanism, an intermittent regulating mechanism, an auxiliary moving mechanism and an external shielding mechanism, wherein the signal testing mechanism comprises a microwave isolator, a signal generator and a signal detector; the upper middle part of the microwave isolator is arranged in an upward annular bulge, the inner damping of the annular bulge is connected with an intermittent regulating mechanism, the central positions of the front end and the rear end of the intermittent regulating mechanism are connected with an auxiliary moving mechanism, and the outer side of the auxiliary moving mechanism is connected with an outer shielding mechanism. The invention solves the problems that the existing signal testing device adopts continuous testing operation, has high cost and inconvenient movement and transportation of a testing structure, and is easily interfered by an external environment to influence the accuracy of signal testing by arranging the discontinuous regulating mechanism, the auxiliary moving mechanism and the external shielding mechanism.)

1. A signal discontinuity testing device for a microwave isolator comprises a signal testing mechanism (100), a discontinuity regulating mechanism (400), an auxiliary moving mechanism (500) and an external shielding mechanism (600), and is characterized in that: the signal testing mechanism (100) comprises a microwave isolator (110), a signal generator (120) and a signal detector (130), wherein the middle part of one side of the microwave isolator (110) is connected with the signal generator (120) through a wiring mechanism (200), and the middle part of the other side of the microwave isolator is connected with the signal detector (130) through the wiring mechanism (200);

the middle of the upper end of the microwave isolator (110) is provided with an annular bulge, the inner damping of the annular bulge is connected with an intermittent regulating mechanism (400), the central position of the lower surface of the front end and the rear end of the intermittent regulating mechanism (400) is connected with an auxiliary moving mechanism (500), and the outer side of the auxiliary moving mechanism (500) is connected with an outer shielding mechanism (600).

2. The signal discontinuity testing device for the microwave isolator according to claim 1, wherein the discontinuity control mechanism (400) comprises a support (410), an air cylinder (430), a push head (440) and a timing controller (450), the middle part of the support (410) is in threaded connection with a U-shaped frame (420), the air cylinder (430) penetrates through the middle part of the U-shaped frame (420), the bottom output end of the air cylinder (430) is movably connected with the push head (440), the bottom end of the push head (440) and a switch in the middle part of the support (410) penetrates through the middle part of the microwave isolator (110) are oppositely arranged, and the timing controller (450) is embedded and connected to the upper end of the air cylinder (430).

3. The signal discontinuity testing device for the microwave isolator according to claim 1, wherein the auxiliary moving mechanism (500) comprises a set of upper opening frames (510), the upper opening frames (510) are fixedly connected to the middle portion of the lower end of the support (410), the inner damping of the upper opening frames (510) is connected with the n-shaped frames (520), one side of the upper end surface of each n-shaped frame (520) is connected with a material placing box (530) in a threaded manner, and one side of the bottom end surface of each n-shaped frame (520) is provided with threaded through holes at equal intervals.

4. The signal discontinuity testing device for microwave isolators according to claim 3, wherein the external shielding mechanism (600) comprises a set of hollow frames (610), the hollow frames (610) are fixedly connected to the lower portion of the outer end of the material placing box (530), the internal damping of the hollow frames (610) is connected with the side metal shielding plate (620), the upper portion of the internal side of the side metal shielding plate (620) is arranged in a guide groove, and the bottom end face of the guide block (630) sliding in the guide groove is connected with the end metal shielding plate (640).

5. The signal discontinuity testing device for the microwave isolator according to claim 1, wherein a mounting mechanism (300) is connected to the central position of the front end and the rear end of the microwave isolator (110), the mounting mechanism (300) comprises a set of side-port frames (310), the side-port frames (310) are internally threaded with a transverse mounting plate (320), the bottom end of the transverse mounting plate (320) is connected with a longitudinal mounting plate (330), a stud (340) penetrates through the bottom end of the longitudinal mounting plate (330), and the end of the stud is threaded with a nut (350).

6. The signal discontinuity testing device for the microwave isolator as claimed in claim 5, wherein a threaded through hole is provided at a central position of an end portion of the side-port frame (310) and a central portion of a front end of the transverse mounting plate (320), a sliding slot is provided at a central portion of a bottom of the transverse mounting plate (320), the sliding block at a central portion of an upper end of the longitudinal mounting plate (330) is slidably connected in the sliding slot, and a downward protrusion is provided at an inner end portion of the sliding slot.

7. The signal discontinuity testing device for the microwave isolator according to claim 1, wherein the connection mechanism (200) comprises a set of connection tubes (210), the inner ends of the connection tubes (210) are provided with screw grooves at equal intervals, the front ends of the connection tubes (210) are electrically connected with wires (220), one ends of the wires (220) are electrically connected with the signal generator (120) and the signal detector (130) through conductive columns in an inserting manner, and the wires (220) are connected with each other through the adjusting member (230).

8. The signal discontinuity testing device for the microwave isolator according to claim 7, wherein the adjusting member (230) comprises an outer insulating tube (231), the end of the outer insulating tube (231) is connected with a hollow end cap (232) in a clamping manner, the end of a metal adjusting tube (233) at the inner middle portion of the outer insulating tube (231) is connected with a metal adjusting rod (234) in a sleeving manner, and the middle portion of the outer end of the metal adjusting rod (234) is electrically connected with the conducting wire (220).

Technical Field

The invention belongs to the technical field of communication, and particularly relates to a signal discontinuity testing device for a microwave isolator.

Background

The microwave isolator is a two-port device, which only transmits signals along one direction, and prevents the signals from transmitting along the other direction, so that the damage to the microwave isolator caused by undesired reflection can be prevented, the cost can be saved, the service life of test equipment and components used in circuit design can be prolonged, and the performance of the microwave isolator needs to be tested by a test device in the production process of the microwave isolator, so that the produced microwave isolator is a qualified product.

Through retrieval, the test device and the Ethernet power supply function test system are authorized and disclosed by the Chinese authorized patent number CN208721750U and the publication date 2019.04.09, the test device provided by the disclosure comprises an isolator, a controller, a CPU and a port, the isolator is connected with the port, and the controller is connected with the CPU and the isolator; the port of the testing device is connected with a port to be tested of the device to be tested through an Ethernet cable, and the port of the testing device is used for receiving a power signal and a data signal which are sent out by the device to be tested through the port to be tested; the isolator is used for transmitting the data signal transmitted to the port of the testing device to the CPU through the controller, and the CPU is used for testing whether the port to be tested of the device to be tested is in data communication with the port of the testing device according to the data signal. According to the testing device and the Ethernet power supply function testing system, whether the port to be tested of the device to be tested and the port of the testing device are in data communication or not can be directly tested according to the data signals through the CPU, and the applicability is high.

Through search, chinese patent application CN110109070A, published japanese 2019.08.09, discloses a high-power transponder testing device, which includes a fixed attenuator, a power divider, a power combiner, and a directional coupler. The invention adopts the method of first attenuation and then synthesis for both channels, so that no matter the high-frequency signal generated by the high-power responder is output from any one channel, the testing device can test the signal after attenuation, and the problems of frequent exchange of a single-channel high-frequency cable of the testing device caused by switching channel output of the responder or high cost, low reliability and the like caused by an active microwave device in the existing testing method are solved; meanwhile, the isolators are added to the two channels to realize the forward transmission and reverse isolation functions of the signals, so that the isolation protection of the product is further increased, and the effect that the testing device can simply, efficiently and reliably test the parameters of the high-power high-frequency signals is achieved.

However, the following disadvantages still exist in the practical use:

1. the existing signal testing device generally adopts continuous testing operation when testing and processing signals, but the continuous testing operation takes long time, can not capture the change of the signals in a certain time period, and has high cost;

2. in the existing signal testing device, multiple structures for signal testing are arranged in a scattered independent structure, so that the inconvenience of moving and carrying the testing structure is caused, and the using effect is influenced;

3. the existing signal testing device is very easily interfered by an external environment and influences the accuracy of signal testing when being exposed in the external environment in the process of testing and processing signals, and the testing device has no related prevention and control measures, has single function and can not meet the use requirement.

Therefore, the existing signal discontinuity testing device for microwave isolators cannot meet the requirements in practical use, so that an improved technology is urgently needed in the market to solve the problems.

Disclosure of Invention

The invention aims to provide a signal discontinuity testing device for a microwave isolator, which solves the problems that the prior signal testing device generally adopts continuity testing operation when testing and processing signals by arranging a discontinuity regulating mechanism, an auxiliary moving mechanism and an external shielding mechanism, but the continuity testing operation takes long time, and the change of the signal in a certain time period can not be captured, the cost is high, and the multiple structures for signal test are arranged in a scattered independent structure, which causes inconvenience for moving and carrying the test structure and influences the use effect, and simultaneously, in the process of testing and processing signals, the device is exposed in the external environment, is easily interfered by the external environment, influences the accuracy of signal testing, the testing device has no related prevention and control measures, the function is simplified, and the use requirement can not be met.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a signal discontinuity testing device for a microwave isolator, which comprises a signal testing mechanism, a discontinuity regulating and controlling mechanism, an auxiliary moving mechanism and an external shielding mechanism, wherein the signal testing mechanism comprises the microwave isolator, a signal generator and a signal detector;

the upper middle part of the microwave isolator is provided with an upward annular bulge, the inner part of the annular bulge is connected with an intermittent regulating mechanism in a damping mode, the central positions of the front end and the rear end of the intermittent regulating mechanism are connected with an auxiliary moving mechanism, and the outer side of the auxiliary moving mechanism is connected with an outer shielding mechanism.

Furthermore, the discontinuous regulating and controlling mechanism comprises a support, an air cylinder, a push head and a timing controller, wherein the middle part of the support is in threaded connection with a U-shaped frame, the output end of the bottom of the air cylinder, penetrating through the middle part of the U-shaped frame, is movably connected with the push head, the bottom end of the push head and a switch, penetrating through the middle part of the support, in the middle part of the microwave isolator are arranged oppositely, and the upper end of the air cylinder is connected with the timing controller in an embedded mode.

Based on the technical characteristics, the timing controller performs random timing and external control of the air cylinder, and after the timing reaches the specified time, the air cylinder applies downward moving force to the push head for opening the switch to realize the operation of the signal testing mechanism, otherwise, the operation is reversed, so that the testing accuracy is improved and the cost is reduced by the intermittent test.

Further, supplementary moving mechanism includes a set of upper shed frame, and upper shed frame fixed connection is in the middle part of support lower extreme, the damping is connected with nearly font frame in the upper shed frame, nearly font frame up end one side threaded connection has puts the workbin, and nearly font frame bottom end face one side is equidistant to be provided with the screw through-hole.

Based on the technical characteristics, the structure of the n-shaped frame connected with the material placing box is supported and fixed by the upper opening frame, and the material placing box is used for placing the signal generator and the signal detector, so that the whole device can be moved and carried conveniently.

Further, outer shielding mechanism includes a set of cavity frame, and cavity frame fixed connection is in the lower part of putting the workbin outer end, the damping is connected with side metal shield plate in the cavity frame, the inboard upper portion of side metal shield plate is the guide slot setting, and the gliding guide block bottom end face in the guide slot is connected with end metal shield plate.

Based on above-mentioned technical characteristics, by the location is accepted to the contralateral metal shield plate of cavity frame, accepts the location through the guide block to the end metal shield plate, at this moment, can carry out outer shielding to the device through the inboard space of lateral metal shield plate and end metal shield plate to improve the test accuracy.

Further, the microwave isolator is characterized in that the central position of the front end and the rear end of the microwave isolator is connected with a mounting mechanism, the mounting mechanism comprises a group of side-opening frames, the side-opening frames are in threaded connection with transverse mounting plates, the bottom end parts of the transverse mounting plates are connected with longitudinal mounting plates, studs penetrate through the bottom ends of the longitudinal mounting plates, and nuts are in threaded connection with the end parts of the studs.

Based on the technical characteristics, the transverse mounting plate is used for connecting and fixing the structure of the device in a plane environment, and the longitudinal mounting plate is used for connecting and fixing the structure of the device in a curved surface environment under the action of the stud and the nut.

Furthermore, threaded through holes are formed in the central position of the end part of the side-opening frame and the middle part of the front end of the transverse mounting plate, a sliding groove is formed in the middle of the bottom of the transverse mounting plate, the sliding block in the middle of the upper end of the longitudinal mounting plate is connected in the sliding groove in a sliding mode, and a downward convex block is arranged at the inner end part of the sliding groove.

Based on the technical characteristics, the screw holes are used for carrying out structural bearing on the outer bolts and used for connecting and fixing the transverse mounting plate structure, the distance between the longitudinal mounting plates can be adjusted through the sliding of the sliding blocks in the sliding grooves, and the sliding blocks are limited by the convex blocks and prevented from falling.

Further, wiring mechanism includes a set of takeover, and takes over the inner equidistant thread groove that is provided with, take over the one end of the wire of front end electric connection and peg graft electric connection between the conductive tube on leading electrical pillar and signal generator, the signal detector, connect through the regulating part between the wire.

Based on the technical characteristics, one end of the lead is connected by the connecting pipe and is electrically connected with the microwave isolator, the other end of the lead is connected with the signal generator and the signal detector through the adjusting piece, and therefore smooth detection of signals is achieved.

Further, the regulating part includes outer insulating tube, and outer insulating tube tip joint is connected with the cavity end cover, and the metal regulating tube tip of the interior middle part of outer insulating tube cup joints and is connected with the metal regulation pole, electric connection between metal regulation pole outer end middle part and wire.

Based on the technical characteristics, the wire is structurally supported by the outer insulating tube and the hollow end cover, one end of the wire is electrically connected through the outer end of the metal adjusting rod, and the length of the broken wire can be adjusted while the broken wire is connected with the power through the expansion and contraction of the metal adjusting rod in the metal adjusting rod.

The invention has the following beneficial effects:

1. according to the invention, by arranging the intermittent regulation and control mechanism, an original continuous testing mode is replaced by an intermittent testing mode so as to reduce the testing cost, and the testing accuracy is improved by randomness, specifically, a timing controller in the intermittent regulation and control mechanism is used for timing and controlling the air cylinder, after the timing controller randomly times and reaches the specified time, the air cylinder is controlled by the timing controller, and at the moment, the air cylinder applies downward moving force to the push head for opening the switch, so that the signal testing mechanism is started.

2. The auxiliary moving mechanism is arranged, the structures for signal testing are connected in a centralized mode to form an integral structure, the integral structure is easy to move and carry, specifically, an upper opening frame is connected to the central position of the front lower portion and the rear lower portion of the support and used for carrying out structural bearing on the n-shaped frame connected with the material placing box, the bottom end of the support is connected with the microwave isolator, the material placing box is used for carrying out material placing processing on the signal generator and the signal detector, and the n-shaped frame is used for controlling and moving the signal generator and the signal detector.

3. The signal testing device is provided with the outer shielding mechanism, the outer shielding structure is additionally arranged on the signal testing structure, the testing accuracy is improved, meanwhile, the functionality of the device is enhanced, the use requirement is met, specifically, a side metal shielding plate is connected in a hollow frame of the outer shielding mechanism, the front end and the rear end of the bottom of a guide block sliding on the upper portion of the inner side of the side metal shielding plate are connected with end metal shielding plates, and the signal testing mechanism is subjected to external anti-shielding interference protection through a space formed by the inner sides of the side metal shielding plate and the end metal shielding plates.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic external view of the present invention;

FIG. 2 is a schematic view of the connection of the installation mechanism, the microwave isolator and the intermittent adjustment mechanism according to the present invention;

FIG. 3 is a schematic view of the mounting mechanism of the present invention;

FIG. 4 is a schematic view of the intermittent adjustment mechanism of the present invention;

FIG. 5 is a schematic view of the wiring mechanism of the present invention;

FIG. 6 is an exploded view of the adjusting member of the present invention;

FIG. 7 is a schematic view of the connection between the supporting base and the auxiliary moving mechanism according to the present invention;

fig. 8 is a schematic view of the connection between the auxiliary moving mechanism and the external shielding mechanism according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

100. a signal testing mechanism; 110. a microwave isolator; 120. a signal generator; 130. a signal detector; 200. a wiring mechanism; 210. taking over a pipe; 220. a wire; 230. an adjustment member; 231. an outer insulating tube; 232. a hollow end cap; 233. a metal conditioning tube; 234. a metal adjusting rod; 300. an installation mechanism; 310. a side-open frame; 320. a transverse mounting plate; 330. a longitudinal mounting plate; 340. a stud; 350. a nut; 400. an intermittent regulating mechanism; 410. a support; 420. a U-shaped frame; 430. a cylinder; 440. pushing the head; 450. a timing controller; 500. an auxiliary moving mechanism; 510. an upper opening frame; 520. a frame shaped like a Chinese character 'ji'; 530. a material placing box; 600. an outer shielding mechanism; 610. a hollow frame; 620. a side metal shield plate; 630. a guide block; 640. end metal shield plates.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1 to 8, the present invention is a signal discontinuity testing apparatus for a microwave isolator, including a signal testing mechanism 100, a discontinuity regulating mechanism 400, an auxiliary moving mechanism 500, and an external shielding mechanism 600, where the signal testing mechanism 100 includes a microwave isolator 110, a signal generator 120, and a signal detector 130, the middle of one side of the microwave isolator 110 is connected to the signal generator 120 through a wiring mechanism 200, and the middle of the other side is connected to the signal detector 130 through a wiring mechanism 200;

the upper middle part of the microwave isolator 110 is provided with an upward annular bulge, the inner part of the annular bulge is connected with an intermittent regulating mechanism 400 in a damping manner, the central positions of the front and rear lower ends of the intermittent regulating mechanism 400 are connected with an auxiliary moving mechanism 500, and the outer side of the auxiliary moving mechanism 500 is connected with an outer shielding mechanism 600;

the intermittent regulating and controlling mechanism 400 comprises a support 410, an air cylinder 430, a push head 440 and a timing controller 450, wherein the middle part of the support 410 is in threaded connection with a U-shaped frame 420, the output end of the bottom of the air cylinder 430 penetrating through the middle part of the U-shaped frame 420 is movably connected with the push head 440, the bottom end of the push head 440 is opposite to a switch penetrating through the middle part of the support 410 through the middle part of the microwave isolator 110, and the upper end of the air cylinder 430 is connected with the timing controller 450 in an embedded manner; .

The auxiliary moving mechanism 500 comprises a group of upper opening frames 510, the upper opening frames 510 are fixedly connected to the middle of the lower end of the support 410, the inner parts of the upper opening frames 510 are connected with a n-shaped frame 520 in a damping mode, one side of the upper end face of the n-shaped frame 520 is in threaded connection with a material placing box 530, and threaded through holes are formed in one side of the bottom end face of the n-shaped frame 520 at equal intervals;

outer shielding mechanism 600 includes a set of hollow frame 610, and hollow frame 610 fixed connection is in the lower part of putting the workbin 530 outer end, and damping is connected with side metal shield plate 620 in hollow frame 610, and the inboard upper portion of side metal shield plate 620 is the guide slot setting, and the gliding guide block 630 bottom end face in the guide slot is connected with end metal shield plate 640.

As shown in fig. 3, the central position of the front end and the rear end of the microwave isolator 110 is connected with a mounting mechanism 300, the mounting mechanism 300 includes a set of side-port frames 310, the side-port frames 310 are connected with a transverse mounting plate 320 through internal threads, the bottom end of the transverse mounting plate 320 is connected with a longitudinal mounting plate 330, a stud 340 penetrates through the bottom end of the longitudinal mounting plate 330, and the end of the stud is connected with a nut 350 through threads.

Specifically, when the mounting mechanism 300 is used, if the mounting environment is a plane, the external bolt is inserted into the screw hole of the horizontal mounting plate 320 and a tightening force is applied, and if the mounting environment is a curved surface, the longitudinal mounting plate 330 is pushed and pulled so that the inner side surface thereof is in contact with the external connection mechanism, and at this time, the nut 350 is tightened on the end of the stud 340 inserted through the bottom end of the longitudinal mounting plate 330;

threaded through holes are formed in the center of the end part of the side-opening frame 310 and the middle of the front end of the transverse mounting plate 320, a sliding groove is formed in the middle of the bottom of the transverse mounting plate 320, a sliding block in the middle of the upper end of the longitudinal mounting plate 330 is connected into the sliding groove in a sliding mode, and a downward convex block is arranged at the inner end of the sliding groove;

specifically, the mounting mechanism 300 is used by carrying out structural support on the outer bolt through the screw hole to connect the structure of the transverse mounting plate 320, and by sliding the sliding block in the sliding groove, the position of the longitudinal mounting plate 330 is easily adjusted, and by limiting the sliding block through the bump, the mounting mechanism can be used.

As shown in fig. 5-6, the wiring mechanism 200 includes a set of connection pipes 210, and screw grooves are disposed at equal intervals at the inner ends of the connection pipes 210, one ends of the wires 220 electrically connected to the front ends of the connection pipes 210 are electrically connected to the signal generator 120 and the signal detector 130 through conductive posts, the wires 220 are connected to each other through an adjusting member 230, the adjusting member 230 includes an outer insulating pipe 231, the end of the outer insulating pipe 231 is connected to a hollow end cap 232 in a clamping manner, the end of a metal adjusting pipe 233 at the inner middle portion of the outer insulating pipe 231 is connected to a metal adjusting rod 234 in a sleeving manner, and the outer end middle portion of the metal adjusting rod 234 is electrically connected to the wires 220.

Specifically, when the wiring mechanism 200 is used, the length of the wires 220 is adjusted in advance, the inner ends of one group of the wires 220 penetrate through the hollow end cap 232 and are connected with the outer end of the metal adjusting rod 234, meanwhile, a pushing and pulling force is applied to the metal adjusting rod 234 to enable the wires to be correspondingly stretched and contracted in the metal adjusting tube 233, at this time, the connecting tube 210 connected with one end of the wire 220 is connected with the microwave isolator 110, and the other end of the wire 220 is connected with the signal generator 120 and the signal detector 130.

When the device is used specifically;

firstly, an outward force is applied to the signal generator 120 and the signal detector 130 which are arranged in the material placing box 530 to make the signal generator and the signal detector separate from the material placing box 530, at this time, because the self weight of the microwave isolator 110 is smaller, the positioning treatment needs to be carried out on the microwave isolator, at this time, if the installation environment is a plane, an outer bolt penetrates through a screw hole on the transverse installation plate 320 and is applied with a tightening force, if the installation environment is a curved surface, a push-pull force is applied to the longitudinal installation plate 330 to make the inner side surface of the longitudinal installation plate contact with the outer connecting mechanism, at this time, the end part of the stud 340 penetrating through the bottom end part of the longitudinal installation plate 330 is screwed with the nut 350;

then, wiring processing needs to be performed between the microwave isolator 110 and the signal generator 120 and between the microwave isolator and the signal detector 130, at this time, according to the use requirement, the length of the conducting wires 220 is adjusted in advance, the inner ends of a group of conducting wires 220 penetrate through the hollow end cover 232 and are connected with the outer ends of the metal adjusting rods 234, meanwhile, a pushing and pulling force is applied to the metal adjusting rods 234, so that the conducting wires are correspondingly stretched and contracted in the metal adjusting pipes 233, at this time, the connecting pipe 210 connected with one end of the conducting wires 220 is connected with the microwave isolator 110, and the other end of the conducting wires 220 is connected with the signal generator 120 and the signal detector 130;

then, one end of the side metal shielding plate 620 is inserted into the hollow frame 610, so that the bottom end of the side metal shielding plate is in contact with the ground, and meanwhile, one end of the guide block 630 connected with the end metal shielding plate 640 is placed in the guide groove and is applied with pushing force, so that the end part of the guide block 630 is flush with the end part of the guide groove;

finally, the timing controller 450 is used for randomly timing, after the timing time is up, the timing controller 450 is used for controlling the air cylinder 430, at the moment, the air cylinder 430 applies downward force to the push head 440, downward force is applied to the switch through the push head 440, the switch is opened, at the moment, the device works, detection of a signal within a time period is carried out, after the timing, the air cylinder 430 applies the reverse step, the switch is in a closed state again, and at the same time, after the timing time reaches the other time end, the steps are repeated again to carry out signal detection.

The above are only preferred embodiments of the present invention, and the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made to the technical solutions described in the above embodiments, and to some of the technical features thereof, are included in the scope of the present invention.