阅读说明：本技术 一种穿透法超声c扫描检测系统探头零位角度校验方法 (Probe zero angle checking method of penetration method ultrasonic C scanning detection system ) 是由 徐振业 刘志浩 岳守晶 于 2021-07-30 设计创作，主要内容包括：本发明属于无损检测领域,特别涉及一种穿透法超声C扫描检测系统探头零位角度校验方法。主要包括探头、喷嘴和被检工件,其中探头和喷嘴作为一个整体具有摆动和旋转角度功能,通过探头的摆动和旋转能够保证超声波声束沿工件表面法线方向入射,实现了对穿透法超声C扫描检测系统探头零位角度的校验,使探头恢复至零度位置,解决了检测人员目视调整探头角度零位误差较大的问题,提高了穿透法超声C扫描机械检测精度,保证了穿透法超声C扫描发射端和接收端探头的对中,改善了超声C扫描检测图像效果。(The invention belongs to the field of nondestructive testing, and particularly relates to a zero angle checking method for a probe of a penetration ultrasonic C scanning testing system. The ultrasonic C scanning detection system mainly comprises a probe, a nozzle and a detected workpiece, wherein the probe and the nozzle have the functions of swinging and rotating angles as a whole, ultrasonic sound beams can be ensured to be incident along the normal direction of the surface of the workpiece through the swinging and rotating of the probe, the zero angle of the probe of the penetration method ultrasonic C scanning detection system is verified, the probe is restored to the zero position, the problem that the zero error of the probe angle visually adjusted by a detector is large is solved, the mechanical detection precision of the penetration method ultrasonic C scanning is improved, the probe at a transmitting end and a receiving end of the penetration method ultrasonic C scanning is ensured to be centered, and the image detection effect of the ultrasonic C scanning is improved.)

1. A penetration method ultrasonic C scanning detection system probe zero position angle checking method is characterized by comprising the following steps:

1) firstly, checking the rotation angle R of the probe, placing a digital display type level meter on a rotating mechanism behind a nozzle of a detection system, observing the direction of the deviation of the bubble from the central position and a digital display numerical value on the digital display type level meter, if the bubble deviates from the central position to the right, indicating that the probe inclines to the left, adjusting a handle of the detection system, moving the probe along the negative direction of R, reducing the R value, simultaneously observing the digital display numerical value, and when the numerical value is displayed to +/-0.1 degrees, indicating that the verification of the rotation angle R of the probe is qualified; if the bubble deviates from the center position to the left, the probe inclines to the right, the handle of the detection system is adjusted, the probe is moved along the positive direction of R, the R value is increased, meanwhile, the numerical display value is observed, and when the numerical display value is +/-0.1 degrees, the calibration of the angle R of the probe is qualified;

2) then checking the angle T of the probe, placing the digital display type level meter on the nozzle, observing the direction of the deviation of the bubble from the central position and the digital display numerical value on the digital display type level meter, if the bubble deviates from the central position to the left, indicating that the probe inclines upwards, adjusting a handle of the detection system, moving the probe along the negative direction of the T, reducing the value T, and simultaneously observing the digital display numerical value, wherein when the numerical value is displayed to be +/-0.1 degrees, indicating that the angle T of the probe is qualified for checking; if the bubble deviates from the center position to the right, the probe inclines downwards, the handle of the detection system is adjusted, the probe is moved along the positive direction of the angle T, the value T is increased, meanwhile, the numerical display value is observed, and when the numerical display value is +/-0.1 degrees, the inspection of the angle T of the probe is qualified.

2. The method for verifying the zero angle of the probe of the penetrating ultrasonic C-scan detection system according to claim 1, wherein the verified probe angles T and R are finally stored, and the detection system is restarted to return the probe angles to the zero position of the detection system.

3. The method for verifying the zero angle of the probe of the penetration ultrasonic C-scan detection system according to claim 1, wherein the inclination states of the angles T and R of the probe are observed, and if the probe still has obvious inclination, the angle of the probe needs to be verified again according to the steps 1) -2).

4. The method for verifying the null angle of the probe of the ultrasonic C-scan penetration detection system as claimed in claim 1, wherein if the probe is not inclined significantly, the probe angles T and R are measured again by using a digital display type level meter, and the probe verification is completed when the probe angles T and R are within +/-0.1 degrees.

5. The method for verifying the null angle of the probe of the ultrasonic C-scan penetration detection system as claimed in claim 1, wherein T and R are out of the range of +/-0.1 degrees, and if the probe fails to verify, the probe angle is verified again according to the steps 1) -2) until the probe angles T and R are within the range of +/-0.1 degrees.

6. The method for verifying the null angle of the probe of the ultrasonic C-scan penetration detection system as claimed in claim 1, wherein the T angle is less than 90 degrees, and both T angles are less than 90 degrees, so that the maximum angle range is controlled within 180 degrees.

7. The method for verifying the zero angle of the probe of the ultrasonic C-scan penetration detection system according to claim 1, wherein the rotation angle R of the probe is less than 360 degrees; the gradienter precision satisfies 0.01 degrees, has the function of real-time display angle.

8. The method for verifying the zero angle of the probe of the ultrasonic C-scan penetration detection system as claimed in claim 1, wherein the distance between the probe 2 and the surface of the workpiece 3 is greater than 90mm.

9. The method for verifying the null angle of the probe of the ultrasonic C-scan penetration detection system as claimed in claim 1, wherein the nozzle is specified by

10. The method for verifying the zero angle of the probe of the penetrating ultrasonic C-scan detection system according to claim 1, wherein the ultrasonic attenuation is less than two dB to ensure the final effect of the left and right probes after all angles are adjusted.

Technical Field

The invention belongs to the field of nondestructive testing, and particularly relates to a zero angle checking method for a probe of a penetration ultrasonic C scanning testing system.

Background

The ultrasonic C-scan detection by the water spray penetration method is one of the common methods for ultrasonic nondestructive detection of composite materials at present, FIG. 1 is a schematic diagram of ultrasonic C-scan detection by penetration method, mainly comprising a probe, a nozzle and a workpiece to be detected, wherein the probe and the nozzle have the functions of swinging and rotating angles as a whole, the ultrasonic sound beam can be ensured to be incident along the normal direction of the surface of the workpiece through the swinging and rotating of the probe, but in the actual detection process, due to unreasonable detection path planning and misoperation of detection personnel, the nozzle (2 and 4 in figure 1) is easy to collide with the detected workpiece, when the probe returns to the original position of the machine, the angles T and R of the probe deviate from zero, the probes at two sides of the workpiece to be detected (one side is a transmitting end, and the other side is a receiving end) cannot be centered, the ultrasonic waves penetrating through the workpiece cannot be received, so that ultrasonic C-scan detection of the workpiece cannot be realized.

Disclosure of Invention

The invention aims to solve the problem that the zero error of the probe angle of the ultrasonic C scanning detection system by visual adjustment of a penetration method by a detector is larger, improve the ultrasonic C scanning detection precision and improve the image detection effect of ultrasonic C scanning.

Technical scheme

A penetration method ultrasonic C scanning detection system probe zero position angle checking method comprises the following steps:

1) firstly, checking the rotation angle R of a probe, placing a digital display type level meter on a rotating mechanism behind a nozzle of a detection system, observing the direction of the deviation of a bubble from a central position and a digital display numerical value on the digital display type level meter, if the bubble deviates from the central position to the right, indicating that the probe inclines to the left, adjusting a handle of the detection system, moving the probe along the negative direction of R, reducing the R value, simultaneously observing the digital display numerical value, and when the numerical value is displayed to +/-0.1 degrees, indicating that the checking of the angle R of the probe is qualified; if the bubble deviates from the center position to the left, the probe inclines to the right, the handle of the detection system is adjusted, the probe is moved along the positive direction of R, the R value is increased, meanwhile, the numerical display value is observed, and when the numerical display is +/-0.1 degrees, the calibration of the angle R of the probe is qualified.

2) Then checking the angle T of the probe, placing the digital display type level meter on the nozzle, observing the direction of the deviation of the bubble from the central position and the digital display numerical value on the digital display type level meter, if the bubble deviates from the central position to the left, indicating that the probe inclines upwards, adjusting a handle of the detection system, moving the probe along the negative direction of the T, reducing the value T, and simultaneously observing the digital display numerical value, wherein when the numerical value is displayed to be +/-0.1 degrees, indicating that the angle T of the probe is qualified for checking; if the bubble deviates from the center position to the right, the probe inclines downwards, the handle of the detection system is adjusted, the probe is moved along the positive direction of the angle T, the value T is increased, meanwhile, the numerical display value is observed, and when the numerical display value is +/-0.1 degrees, the inspection of the angle T of the probe is qualified.

And finally, storing the checked probe angles T and R, and restarting the detection system to enable the probe angles to return to the zero position of the detection system.

Observing the inclination states of the angles T and R of the probe, and if the probe still has obvious inclination, re-checking the angle of the probe according to the steps 1) -2).

If the probe does not have obvious inclination, the digital display type level meter is adopted to measure the angles T and R of the probe again, the angles T and R of the probe are within the range of +/-0.1 degrees, and the calibration of the probe is finished.

If the T and the R are beyond the range of +/-0.1 degrees and the probe fails to be verified, the probe angle is required to be verified again according to the steps 1) -2) until the T and the R of the probe angle are within the range of +/-0.1 degrees.

The T angle is less than 90 degrees, and both T angles are less than 90 degrees, so that the maximum angle range is controlled within 180 degrees.

The probe rotation angle R is less than 360 °.

The gradienter precision satisfies 0.01 degrees, has the function of real-time display angle.

The distance between the probe 2 and the surface of the workpiece 3 is more than 90mm.

The specification of the nozzle is

After all the angles are adjusted, the final effect of the left probe and the right probe is ensured, and the ultrasonic attenuation is less than two dB.

Technical effects

The zero-position angle of the probe of the penetration method ultrasonic C scanning detection system is verified, the probe is restored to the zero-position, the problem that the zero-position error of the probe angle visually adjusted by a detector is large is solved, the detection precision of the penetration method ultrasonic C scanning machinery is improved, the probe of a transmitting end and a receiving end of the penetration method ultrasonic C scanning is ensured to be centered, and the image detection effect of the ultrasonic C scanning is improved.

Drawings

FIG. 1 is a schematic diagram of ultrasonic C-scan detection by penetration method

Wherein: 1 is probe 1; 2 is a nozzle; 3 is a workpiece to be detected; t is the swing angle of the probe; and R is the rotation angle of the probe.

FIG. 2 is a schematic diagram of zero position inspection of probe of ultrasonic C-scan detection system by penetration method

FIG. 3 side view of a penetration ultrasonic C-scan inspection system for inspecting the null position of a probe

Wherein 1 is a probe; 2 is a nozzle; and 3 is a digital display type level meter.

Detailed Description

The verification method of the present invention is further explained below with reference to the accompanying drawings, as shown in fig. 1-3:

a penetration method ultrasonic C scanning detection system probe zero position angle checking method comprises the following steps:

1) firstly, checking the rotation angle R of the probe, placing the digital display type level meter on a rotating mechanism behind a nozzle of a detection system by a detection person, observing the direction of the deviation of the bubble from the central position and a digital display numerical value on the digital display type level meter, if the deviation of the bubble from the central position is right, indicating that the probe is inclined towards the left (R is a positive value), adjusting a handle of the detection system, moving the probe along the negative direction of R, reducing the R value, simultaneously observing the digital display numerical value, and when the numerical value is displayed at +/-0.1 degrees, indicating that the calibration of the angle R of the probe is qualified; if the bubble deviates from the center position to the left, the probe inclines to the right (T is a negative value), the handle of the detection system is adjusted, the probe moves along the positive direction of R, the R value is increased, meanwhile, the numerical display value is observed, and when the numerical display value is +/-0.1 degrees, the calibration of the angle R of the probe is qualified.

2) Then checking the angle T of the probe, placing the digital display type level meter on the nozzle by a detector, observing the direction of the deviation of the bubble from the central position and the digital display numerical value on the digital display type level meter, if the deviation of the bubble from the central position is leftward, indicating that the probe is inclined upwards (T is a positive value), adjusting a handle of a detection system, moving the probe along the negative direction of T, reducing the value T, simultaneously observing the digital display numerical value, and when the numerical value is displayed to be +/-0.1 degrees, indicating that the checking of the angle T of the probe is qualified; if the bubble deviates from the center position to the right, the probe inclines downwards (T is a negative value), the handle of the detection system is adjusted, the probe moves along the positive direction of the angle T, the value T is increased, meanwhile, the numerical display value is observed, and when the numerical display value is +/-0.1 degrees, the calibration of the angle T of the probe is qualified.

And finally, storing the checked probe angles T and R, and restarting the detection system to enable the probe angles to return to the zero position of the detection system. In order to facilitate continued detection.

Observing the inclination states of the angles T and R of the probe, and if the probe still has obvious inclination, re-checking the angle of the probe according to the steps 1) -2). After multiple tests, the inclination states of the probe angles T and R are gradually reduced.

If the probe does not have obvious inclination, the digital display type level meter is adopted to measure the angles T and R of the probe again, the angles T and R of the probe are within the range of +/-0.1 degrees, and the calibration of the probe is finished.

If the T and the R are beyond the range of +/-0.1 degrees and the probe fails to be verified, the probe angle is required to be verified again according to the steps 1) -2) until the T and the R of the probe angle are within the range of +/-0.1 degrees.

The T angle is less than 90 degrees, and both T angles are less than 90 degrees, so that the maximum angle range is controlled within 180 degrees, and the auxiliary detection of the inclination angle in the plane can be sufficiently dealt with.

The rotation angle R of the probe is less than 360 degrees, and the rotation angle detection can be satisfied at the maximum angle.

The gradienter precision satisfies 0.01 degrees, has the function of real-time display angle. This accuracy can maximize the assurance of test horizontal alignment results. Ensuring that the tilt angle is as low as possible.

The distance between the probe 2 and the surface of the workpiece 3 is more than 90mm.

The specification of the nozzle isIs the standard of a conventional nozzle.

After all the angles are adjusted, the final effect of the left probe and the right probe is ensured, and the ultrasonic attenuation is less than two dB.

In order to realize the final detection, the probe deviating from the zero position in the detection system needs to be checked again to be restored to the zero position, and the alignment of the probe at the transmitting end and the probe at the receiving end is ensured.

The invention adopts the digital display type level meter to check the zero positions of the probe angles R and T of the penetration method ultrasonic C scanning detection system, solves the problem of larger zero position error of visual adjustment of the probe angle by a detector, improves the ultrasonic C scanning detection precision and improves the ultrasonic C scanning detection image effect.