Phased array probe time scanning tool

Abstract

The invention discloses a phased array probe time scanning positioning tool which comprises a scanning positioning ruler (1), a probe positioning ruler (2) and a probe positioning block. both the scanning positioning ruler (1) and the probe positioning ruler (2) are provided with scales, the probe positioning ruler (2) is perpendicular to the scanning positioning ruler (1), one end of the probe positioning ruler (2) is movably connected with the scanning positioning ruler (1) and can move in the axial direction of the scanning positioning ruler (1), and the other end of the probe positioning ruler (2) is a free end.The probe positioning block is arranged on the probe positioning ruler (2) and is used for fixing the probe. The phased array probe time scanning positioning tool can be used for fixing the scanning offset zero point and distance of the probe in a time scanning mode, and accurately measuring the scanning position and the defect size.

Description

technical field [0001] The invention relates to a phased array probe time scanning tool, which is used for fixing the probe scanning offset zero point and distance in the time scanning mode, and accurately measuring the scanning position and defect size. Background technique [0002] Ultrasonic phased array is based on the Huygens principle, and electronic scanning and sector scanning can be realized through a specific time delay rule. It plays an important role in the detection of important equipment components such as heterogeneous structures. Ultrasonic phased array to achieve recordable detection can be divided into two scanning modes: encoder scan and time scan, the encoder as an important component of ultrasonic phased array to achieve recordable detection, its role is to stabilize the probe step deviation However, the disadvantages are that the purchase and maintenance costs are relatively high, and operators who are familiar with the equipment need to calibrate it w...

AI Technical Summary

Problems solved by technology

Ultrasonic phased array to achieve recordable detection can be divided into two scanning modes: encoder scan and time scan, the encoder as an important component of ultrasonic phased array to achieve recordable detection, its role is to stabilize the probe step deviation However, the disadvantages are that the purchase and maintenance costs are relatively high, and operators who are familiar with the equipment need to calibrate it with comparison test blocks during the detection process, which seriously affects the use of ultrasonic phased arrays. Sex and Portability

Therefore, in the case of informal detection or no encoder working conditions, it is necessary to use the time scanning mode of ultrasonic phased array equipment, which has the advantage that it is not limited to the scanning mode of the encoder, and can realize free scanning in the area of ​​interest , but its existing problems are: (1) mostly manual detection; (2) according to the detection scheme, it is difficult to maintain the stability of the step offset distance of the phased array probe; (3) for the defects found in the detection, more Tools such as steel ruler or tape measure its position, length and other information, and the measurement error is large

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