阅读说明：本技术 一种用于侵彻多层硬目标的智能双通道触发装置和方法 (Intelligent dual-channel triggering device and method for penetration of multilayer hard targets ) 是由 马铁华 裴东兴 王宇 陈昌鑫 裴乾飞 李春雨 于 2020-07-20 设计创作，主要内容包括：本发明公开了一种用于侵彻多层硬目标的智能双通道触发装置和方法,包括薄膜线圈、柔性“通断”传感装置以及与薄膜线圈和柔性“通断”传感装置相匹配的调理电路、模数转换电路和微处理器；在飞行体的壳体内壁粘贴薄膜线圈,将飞行体壳体磁化；当满足预定层数就会发出触发信号Ⅰ；柔性“通断”型传感装置由柔性“通断”型传感器、钛合金导管和底座构成；将四根钛合金导管沿着飞行体的壳体内壁伸入到飞行体内部顶端,钛合金导管的端部通过底座固定,飞行体内部的装填物也对钛合金导管起固定作用；将四根柔性“通断”型传感器分别放在钛合金导管里,当信号满足触发条件就会发出触发信号Ⅱ；同时接收到触发信号Ⅰ和触发信号Ⅱ时,所述智能双通道触发装置才会触发。(The invention discloses an intelligent double-channel trigger device and method for penetrating a multilayer hard target, which comprises a film coil, a flexible on-off sensing device, a conditioning circuit, an analog-to-digital conversion circuit and a microprocessor, wherein the conditioning circuit, the analog-to-digital conversion circuit and the microprocessor are matched with the film coil and the flexible on-off sensing device; adhering a film coil on the inner wall of the shell of the flying body to magnetize the shell of the flying body; when the preset number of layers is met, a trigger signal I is sent out; the flexible on-off sensing device consists of a flexible on-off sensor, a titanium alloy conduit and a base; the method comprises the following steps that four titanium alloy guide pipes extend into the top end of the interior of a flying body along the inner wall of a shell of the flying body, the end parts of the titanium alloy guide pipes are fixed through a base, and fillers in the interior of the flying body also play a role in fixing the titanium alloy guide pipes; the four flexible on-off sensors are respectively placed in the titanium alloy conduit, and when the signals meet the triggering conditions, a triggering signal II is sent out; when receiving triggering signal I and triggering signal II simultaneously, intelligence binary channels trigger device just can trigger.)

1. An intelligent double-channel trigger device for penetrating multilayer hard targets is characterized in that: the device comprises a film coil, a flexible on-off sensing device, a conditioning circuit, an analog-to-digital conversion circuit and a microprocessor, wherein the conditioning circuit, the analog-to-digital conversion circuit and the microprocessor are matched with the film coil and the flexible on-off sensing device;

adhering a thin film coil on the inner wall of a shell of the flying body, magnetizing the shell of the flying body, and when a multilayer hard target is penetrated, changing the internal magnetic domain structure of the shell microscopically, wherein what is shown macroscopically is the change of a magnetic field; in each penetration process, the induced electromotive force generated by the film coil is increased rapidly and then reduced rapidly, the induced electromotive force generated by the film coil is a pulse type voltage signal, and the signal is transmitted to a conditioning circuit; the conditioning circuit is composed of an amplifying circuit and a filter circuit, the conditioning circuit is connected with an analog-to-digital conversion circuit, and the analog-to-digital conversion circuit is connected with the microprocessor; the conditioning circuit amplifies the signal to a voltage range required by the analog-to-digital conversion circuit on one hand, and can filter part of interference signals on the other hand; then the voltage signal is converted into digital quantity by an analog-to-digital conversion circuit and then sent to a microprocessor; further filtering by using a related filtering algorithm to obtain pulse voltage signals with small interference, counting according to the number of pulses, and sending a trigger signal I when a preset number of layers is met; the titanium alloy conduit, the film coil, the conditioning circuit and the microprocessor are all arranged inside the flying body;

the flexible on-off sensing device consists of a flexible on-off sensor, a titanium alloy conduit and a base; the method comprises the following steps that four titanium alloy guide pipes extend into the top end of the interior of a flying body along the inner wall of a shell of the flying body, the end parts of the titanium alloy guide pipes are fixed through a base, and fillers in the interior of the flying body also play a role in fixing the titanium alloy guide pipes; the method comprises the following steps of respectively placing four flexible on-off sensors in a titanium alloy conduit, wherein each flexible on-off sensor is composed of two layers of non-metal insulating sleeves, one layer of metal conductive sleeve and a metal conductive inner core; when the strength of the shell of the flying body is insufficient in the process of penetrating a target, the shell is greatly deformed, the titanium alloy conduit is deformed, the titanium alloy conduit locally presses the flexible on-off sensor, and the conductive inner core of the flexible on-off sensor is in contact with the metal conductive sleeve to conduct and output a voltage signal; the conditioning circuit filters the voltage signal output by the sensor to prevent the interference signal from being triggered by mistake; the signal is converted into digital quantity through an analog-to-digital conversion circuit after being conditioned and is transmitted to a microprocessor for digital filtering and judgment, and a trigger signal II is sent out when the signal meets a trigger condition; when receiving triggering signal I and triggering signal II simultaneously, intelligence binary channels trigger device just can trigger.

2. The intelligent dual channel trigger device for penetrating multilayer hard targets of claim 1, wherein: the substrate of the film coil is made of a polyester film material, and the polyester film material has higher flexibility and cannot be damaged in bending, folding, twisting, compressing or stretching states; the thickness of the processed substrate is 0.2 mm;

the film coil is made of a high-conductivity low-impedance material, and is covered on the substrate in a copper-clad winding mode, and the diameter of a copper wire is 0.1 mm; the coils are as close together as possible but not shorted together, each turn being about 0.05mm apart.

3. The intelligent dual channel trigger device for penetrating multilayer hard targets of claim 2, wherein: the film coils on the front and back sides of the substrate are symmetrically designed, and the film coils on the front and back sides are connected through a through hole in the center to offset the influence of geomagnetism; and covering an insulating layer on the copper-clad layer for insulating the internal structure of the film coil.

4. The intelligent dual channel trigger device for penetrating multilayer hard targets of claim 3, wherein: the film coil is adhered to the inner wall of the shell through special high-viscosity double-sided adhesive.

5. The intelligent dual channel trigger device for penetrating multilayer hard targets of claim 1, wherein: the titanium alloy conduit extends into the top end of the interior along the inner wall of the shell of the flying body, and the four flexible on-off sensors extend into the titanium alloy conduit to the top end of the interior; the structure of the flexible on-off sensor is as follows from outside to inside in sequence: the metal conductive sleeve is arranged on the outer surface of the metal conductive inner core.

6. The intelligent dual channel trigger device for penetrating multilayer hard targets of claim 5, wherein: the metal conductive inner core and the metal conductive sleeve are made of copper with high conductivity and low resistivity, and the nonmetal insulating outer sleeve and the inner sleeve are made of PE plastic.

7. An intelligent dual-channel triggering method for penetrating a multilayer hard target, which adopts the intelligent dual-channel triggering device for penetrating the multilayer hard target as claimed in any one of claims 1 to 6, and is characterized by comprising the following steps:

step 1: magnetizing the shell of the flying object by using a high-strength magnet;

step 2: designing a thin film coil, wherein the design of the thin film coil needs to consider the testing environment in which the thin film coil is positioned, generate larger induced electromotive force as far as possible and reduce the influence of geomagnetism;

and step 3: the film coil outputs signals to the conditioning circuit, the conditioning circuit consists of an amplifying circuit and a filter circuit, the voltage signals output by the film coil amplify original signals to a voltage range required by the analog-digital conversion circuit through the amplifying circuit, and the filter circuit can filter part of interference signals;

and 4, step 4: the signal output by the conditioning circuit is converted into digital quantity through an analog-to-digital conversion circuit and is sent to a microprocessor, a pulse type voltage signal with small interference is obtained after further filtering by using a related filtering algorithm, counting is carried out according to the number of pulses, and a trigger signal I is sent out when the preset number of layers is met;

and 5: sensing shell rupture extrusion information using a flexible "on-off" type sensing device; the flexible on-off sensing device consists of a flexible on-off sensor, a titanium alloy conduit, a base and a related circuit;

step 6: the signal output by the sensing device is sent to a conditioning circuit, the conditioning circuit consists of an amplifying circuit and a second-order low-pass filter, the signal can be amplified to a voltage range required by an analog-digital conversion circuit through the amplifying circuit, interference is filtered through the filter, and false triggering or non-triggering caused by the fact that a microprocessor cannot identify a correct signal is prevented;

and 7: the signal is converted into digital quantity through an analog-to-digital conversion circuit after passing through the conditioning circuit and then can be sent to the microprocessor, on one hand, the microprocessor utilizes a related filtering algorithm to further filter, on the other hand, the microprocessor judges the signal, and if a triggering condition is met, a triggering signal II is sent out; and only when the trigger signal I and the trigger signal II are received simultaneously, the intelligent double-channel trigger device can be triggered.

Technical Field

The invention relates to an intelligent dual-channel triggering device and method for penetration of multilayer hard targets, and belongs to the field of penetration.

Background

When a multilayer hard target is penetrated, the problems of inaccurate layer counting, inaccurate triggering time and the like exist. Layer counting inaccuracies are due to: firstly, when a multilayer target is penetrated, due to the existence of a large number of oscillation signals and the problems of overload adhesion between layers, the layer-counting precision is difficult to guarantee, and misjudgment is easy to occur; secondly, the acceleration sensor has a null shift phenomenon, so that the layer number identification is inaccurate; and the probability of damage of the acceleration sensor under high impact is high, and the damage effect is greatly reduced in the whole penetration process due to low survivability. The inaccurate triggering time is due to the triggering judgment error, which leads to premature or late triggering, thereby not reaching the maximum damage effect to the target.

Disclosure of Invention

The invention provides an intelligent double-channel triggering device for penetration of multilayer hard targets, aiming at the problems of inaccurate layer counting and inaccurate triggering time when the multilayer hard targets are penetrated. The device recognizes the number of layers of a penetrated multilayer hard target by sensing the change of a magnetic field through the film coil, and recognizes the optimal triggering time by sensing a pressure signal through the flexible on-off sensing device. When reaching the preset layer and the optimal trigger time, the film coil and the flexible on-off sensing device can jointly send out a trigger signal.

The invention provides an intelligent double-channel trigger device for penetrating a multilayer hard target, which comprises a film coil, a flexible on-off sensing device, a conditioning circuit matched with the flexible on-off sensing device, an analog-to-digital conversion circuit and a microprocessor, wherein the flexible on-off sensing device comprises a first sensing circuit and a second sensing circuit;

a thin film coil is adhered to the inner wall of a shell of the flying body, the shell of the flying body is magnetized, and when a multi-layer hard target is penetrated, the internal magnetic domain structure of the shell is changed microscopically, and what is shown macroscopically is the change of a magnetic field. The changing magnetic field causes a change in the magnetic flux passing through the film coil, which generates an induced electromotive force. In each penetration process, induced electromotive force generated by the film coil is increased rapidly and then decreased rapidly, and the signal is approximate to a pulse voltage signal;

the induced electromotive force generated by the film coil is a pulse type voltage signal, the signal is transmitted to a conditioning circuit, the conditioning circuit is composed of an amplifying circuit and a filter circuit, the conditioning circuit is connected with an analog-to-digital conversion circuit, and the analog-to-digital conversion circuit is connected with a microprocessor. The conditioning circuit can amplify the signal to the voltage range required by the analog-digital conversion circuit on one hand and can filter part of interference signals on the other hand. And then converting the voltage signal into a digital quantity through an analog-to-digital conversion circuit, sending the digital quantity to a microprocessor, further filtering by using a related filtering algorithm to obtain a pulse type voltage signal with small interference, counting according to the number of pulses, and sending a trigger signal I when a preset number of layers is met.

The flexible on-off sensing device consists of a flexible on-off sensor, a titanium alloy conduit and a base; the four titanium alloy guide pipes extend into the top end inside the flying body along the inner wall of the shell of the flying body, the titanium alloy guide pipes are fixed through the base, the titanium alloy guide pipes are also fixed by fillers inside the flying body, and then the four flexible on-off sensors extend into the titanium alloy guide pipes until the top end inside the flying body. Four flexible on-off sensors are respectively arranged in the titanium alloy conduit, and each flexible on-off sensor is composed of two layers of non-metal insulating sleeves, one layer of metal conductive sleeve and a metal conductive inner core.

The titanium alloy conduit, the film coil, the conditioning circuit and the microprocessor are all arranged inside the flying body.

When the strength of the shell of the flying body is insufficient in the process of penetrating a target, the shell is greatly deformed, the titanium alloy conduit is deformed, the titanium alloy conduit locally presses the flexible on-off sensor, and after the diameter of the sensor is compressed to a certain proportion of the original size, the conductive inner core of the flexible on-off sensor is in contact with the metal conductive sleeve to conduct and output a voltage signal. The conditioning circuit filters the voltage signal output by the sensor to prevent the interference signal from being triggered by mistake. The signal is converted into digital quantity through an analog-to-digital conversion circuit after being conditioned and is transmitted to a microprocessor for digital filtering and judgment, and a trigger signal II is sent out when the signal meets the trigger condition. And only when the trigger signal I and the trigger signal II are received simultaneously, the intelligent double-channel trigger device can be triggered.

The invention provides an intelligent dual-channel triggering method for implementing a multilayer hard target, which comprises the following steps:

step 1: magnetizing the shell of the flying object by using a high-strength magnet;

step 2: designing a thin film coil, wherein the design of the thin film coil needs to consider the testing environment in which the thin film coil is positioned, generate larger induced electromotive force as far as possible and reduce the influence of geomagnetism;

the substrate of the film coil is made of a polyester film material, the polyester film material has higher flexibility, cannot be damaged under deformation (bending, folding, twisting, compressing or stretching) in a certain range, and can adapt to different working environments to a certain extent. The processed substrate has a thickness of 0.2mm because the film coil is as thin as possible in consideration of the fact that the film coil can be attached to the inner wall of the case without affecting other structures inside the case.

In order to improve induced electromotive force and increase the number of turns of the film coil as much as possible, the film coil is made of a high-conductivity and low-impedance material, a copper-clad winding mode is adopted to cover the substrate, and the diameter of a copper wire is 0.1 mm. The coils are as close together as possible but not shorted together, each turn being about 0.05mm apart. The film coils on the front and back sides of the substrate are symmetrically designed, and meanwhile, the film coils on the front and back sides are connected through a through hole in the center to offset the influence of geomagnetism. And covering an insulating layer on the copper-clad layer for insulating the internal structure of the film coil. The film coil is adhered to the inner wall of the shell through special high-viscosity double-sided adhesive.

And step 3: the film coil outputs signals to the conditioning circuit, the conditioning circuit is composed of an amplifying circuit and a filter circuit, voltage signals output by the film coil can be amplified to a voltage range required by the analog-digital conversion circuit through the amplifying circuit, and partial interference signals can be filtered out by the filter circuit.

And 4, step 4: the signal output by the conditioning circuit is converted into digital quantity through an analog-to-digital conversion circuit and is sent to a microprocessor, the digital quantity is further filtered by utilizing a related filtering algorithm, a pulse type voltage signal with small interference is obtained, counting is carried out according to the number of pulses, and a trigger signal I is sent out when the preset number of layers is met.

And 5: a flexible "on-off" type sensing device is used to sense the shell rupture crush message. The flexible on-off sensing device consists of a flexible on-off sensor, a titanium alloy conduit and a base.

The four titanium alloy guide pipes extend into the top end of the interior of the shell of the flying body along the inner wall of the shell, the titanium alloy guide pipes are fixed through the base, the titanium alloy guide pipes can be fixed by fillers in the flying body, and then the four flexible on-off sensors extend into the titanium alloy guide pipes until the top end of the interior of the flying body. The flexible on-off sensor is composed of two layers of non-metal insulating sleeves, one layer of metal conductive sleeve and a metal conductive inner core. The metal conductive inner core and the metal conductive sleeve are made of copper with high conductivity and low resistivity, and the non-metal insulating sleeve is made of PE plastic.

The four flexible on-off sensors are respectively arranged in the titanium alloy conduit, and the titanium alloy conduit has the characteristics of high strength, good corrosion resistance, small heat conduction elasticity, good low-temperature performance and the like, so that the titanium alloy is very suitable to be used as a metal sleeve of the flexible on-off sensor. When the strength of the shell of the flying body is insufficient in the process of penetrating a target, the shell is greatly deformed, the titanium alloy conduit is deformed, the titanium alloy conduit locally presses the flexible on-off sensor, and after the diameter of the sensor is compressed to a certain proportion of the original size, the conductive inner core of the flexible on-off sensor is in contact with the metal conductive sleeve to conduct an output signal.

Step 6: the signal output by the sensing device is sent to a conditioning circuit, the conditioning circuit consists of an amplifying circuit and a second-order low-pass filter, the signal can be amplified to a voltage range required by an analog-digital conversion circuit through the amplifying circuit, interference can be filtered through the filter, and false triggering or non-triggering caused by the fact that a microprocessor cannot identify a correct signal is prevented.

And 7: the signal is converted into digital quantity through the analog-to-digital conversion circuit after passing through the conditioning circuit, and then the digital quantity can be sent to the microprocessor, on one hand, the microprocessor can further filter by using a related filtering algorithm, on the other hand, the signal can be judged, and if the triggering condition is met, a triggering signal II is sent out. And only when the trigger signal I and the trigger signal II are received simultaneously, the intelligent double-channel trigger device can be triggered.

The invention has the beneficial effects that:

(1) the problem that effective signals cannot be identified due to the fact that vibration response and overload signals are adhered together in the penetration process is solved;

(2) the film coil basically cannot generate null shift;

(3) can resist higher impact, has higher survivability and can be repeatedly used for many times;

(4) the structure is simpler, the response is quicker, and the cost is lower;

(5) in the penetration process, the trigger can be realized at a proper time, and the destructive power is enhanced.

Drawings

FIG. 1 is a schematic block diagram of an intelligent dual channel trigger device;

FIG. 2 is a cross-sectional view of a thin film coil inside a flying body;

FIG. 3 is a schematic diagram of a front side of a film coil;

FIG. 4 is a schematic reverse side view of a film coil;

FIG. 5 is a cross-sectional view of a flexible "make-and-break" sensing device within the flight volume;

FIG. 6 is a schematic view of a flexible "on-off" sensing device;

FIG. 7 is a front view of a flexible "on-off" sensor;

FIG. 8 is a left side view of the flexible "on-off" sensor;

FIG. 9 is a schematic diagram of the operation of the flexible "on-off" sensing device.

In the figure: 1 a-a flying body, 1 b-a film coil, 1 c-a conditioning circuit, 1 d-an analog-digital conversion circuit, 1 e-a microprocessor, 1 f-a titanium alloy conduit, 1 g-a flying body filler, 1 h-a flexible 'on-off' sensing device base, 2 a-a front substrate, 2 b-a front coil, 2 c-a front through hole, 2 d-a front insulating layer, 2 e-a front output terminal interface, 3 a-a back substrate, 3 b-a back coil, 3 c-a back through hole, 3 d-a back insulating layer, 3 e-a back output terminal interface, 4 a-a non-metal insulating outer sleeve, 4 b-a metal conductive sleeve, 4 c-a non-metal insulating inner sleeve, 4 d-a metal conductive inner core, 5 a-an invasion target, 5b, 5c, 5 d-titanium alloy conduit with three different states in the flight impact process.

Detailed Description

The present invention is further illustrated by, but is not limited to, the following examples.