SU1075144A1 - Device for ultrasonic inspection - Google Patents

Abstract

1. DEVICE FOR ULTRASONIC CONTROL, containing series-connected ultrasound transducers with mechanical movement and control, a multichannel flaw detector and logic and control unit, a recorder, which is designed to increase the reliability of the control, it is equipped with series-connected and connected to the logic and control unit of the analysis unit, the OR circuit and the visualizer, the output of which is connected to the first input of the recorder, the paint marker and the memory unit whose inputs are ineny a second output block & LOGIC and control and multichannel flaw detector, and the output - with the second input of the visualizer, the second output OR is connected to the entrance of the paint marker, and the third and fourth outputs, respectively, with the third input of the visualizer and the second input of the recorder, and the second output of the block of 1 Transonic (Lly connected to the second input of the logic block. About I 01 4 4

Description

2 "The device according to claim 1, differs from the fact that it is equipped with

TV camera, the output of which is connected to the center at the input of the imaging unit.

The invention relates to non-destructive testing and can be used for ultrasonic quality control of multilayer structures. A device for ultrasound monitoring is known, containing successively connected unit of ultrasonic transducers with a mechanism for their movement and control, a multichannel defectoscope and a logic and control unit. , recorder. Along with a multichannel flaw detector, the device contains a fluoroscopic system for testing welds ll. A disadvantage of this device is the low reliability of the control caused by the inaccuracy of the results of the control of ultrasound and the fluoroscopic system. The aim of the invention is to increase the reliability of the control. This goal is achieved by the fact that the device for ultrasonic testing, which contains series-connected ultrasonic transducer units with their movement and control mechanism, a multi-channel flaw detector and a logic and control unit, a recorder, is connected in series with and connected to a logic unit, and control the analysis unit, an OR circuit and a visual, the output of which is connected to the first input of the recorder, the paint marker and the memory unit, the inputs of which are connected to the second outputs of the logic unit and control The output and the multichannel flaw detector and the output are connected to the second input of the visualizer, the second output of the OR circuit is connected to the input of the paint marker, and the third and fourth outputs are respectively connected to the third input of the visualizer and the first input of the recorder, and the second output of the ultrasonic transducer unit is connected to the second input of the logic unit. In addition, the device is equipped with a camera, the output of which is connected to the fourth input of the visualization unit. The drawing shows the block diagram of the device for ultrasonic monitoring. The device is a unit 1 of ultrasonic transducers with a moving mechanism and control, including ultrasonic transducers 2, a moving mechanism 3 and a control circuit 4. A multichannel flaw detector 5, a power and control unit, a recorder 7, sequentially combined 8. analysis, a circuit OR 9 and the video display 10, the paint marker 11, the memory block 12, the camera 13, the device operates as follows. The control circuit 4 starts the displacement mechanism 3, which sets ultrasound transducers 2 ". The displacement mechanism 3 generates clock pulses fed to the control circuit 4, where they are converted into sync pulses and fed to the logic and control block 6. At the same time, this unit receives signals from a flat-channel ultrasonic flaw detector 5, which receives high-frequency signals from ultrasonic transducers 2. From the logic and control block 6, clock pulses and converted signals from the multichannel ultrasonic flaw detector 5 are received to block 8 for analyzing and recording defect parameters and to block 12 memory Block 8 consists of analogue converters — an amplitude code, analogue — a length code, analogue — a code for the distance between defects. If there is an unacceptable defect on the digital display of block 8, the parameters of the defects are displayed, and the generated signal is sent to one of the inputs of the OR circuit 9, depending on the parameters by which the defect is rejected. In this case, from the first input of the OR circuit 9, a command is received to the control unit of the ink-marking machine 11, from the third output - a command to the visualizer 10 to turn on the lg1mpy defect, attract the attention of the operator, from the fourth output the video signal is received. a visualizer 10 for reproducing a controlled weld zone on a CRT screen. With cxeNMILI 9, control signals are sent to the recorder 7. If there is a defect, information from the flaw detector 5 is entered into memory block 12. With the command from block 9, a scan area with an unacceptable defect is recorded in the recorder 7.

In this manner, to the second input of the memory unit 12, the clock pulses of the synchronization control of the transducers along the welded joint come from the second output of the logic and control block.

In addition, the memory unit 12 allows to reproduce in parallel on the screen of the visualizer 10 the images of the defect obtained by different transducers. This increases the reliability of control and makes it possible to determine the depth and orientation of defects in a welded joint.

In order to increase the reliability of the control, the device is equipped with a video camera 13, designed to monitor the weld of the product during the -control process and visual inspection of the weld surface. The video signal from the camera 13 goes to the visualizer 10 and is recorded on the recorder 7.

After the end of the automated control of the product and in the presence of unacceptable defects indicated by the paint marker 11, the operator displays from the memory unit 12 a multi-channel image of the seam area with the defect on the screen of the visualizer 10 for additional evaluation.

Thus, the proposed device allows to significantly increase the reliability of control, providing parallel and repeated viewing of the defective area.

Claims (2)

1. DEVICE FOR ULTRA- AUDIO CONTROL, containing a series-connected block of ultrasonic transducers with fur. With the principle of their movement and control, a multichannel flaw detector and a logic and control unit, a recorder, which is different, in order to increase the reliability of control, it is equipped with series and connected to the logic and control unit analysis, OR circuit and visualizer, the output of which connected to the first input of the recorder, a paint scraper and a memory unit, the inputs of which are connected to the second outputs of the logic and control unit and a multi-channel flaw detector, and the output is connected to the second input of the visualizer, the second output the OR circuit is connected to the input of the paint stripper, and the third and fourth outputs, respectively, to the third input of the visualizer and the second input of the recorder, and the second output of the block of ultrasonic transducers is connected to the second input of the logic block. SU_ (in 1075144 ι 2 "The device according to π. 1, characterized in that it is equipped with a television camera, the output of which is connected to the fourth input of the visualization unit.