Cable nondestructive testing device

Abstract

The invention discloses a cable nondestructive testing device, and the device comprises the components of an X-ray transmitting unit which is used for transmitting X-rays to a to-be-tested cable and generating an X-ray penetration area; a detection unit which is arranged behind the to-be-detected cable and used for receiving the X-rays emitted by the X-ray emission unit, wherein the detection unit comprises a scintillation crystal array layer and a silicon photomultiplier array layer, the scintillation crystal array layer comprises a plurality of scintillation crystals, and the silicon photomultiplier array layer comprises a plurality of silicon photomultipliers, each scintillation crystal is configured to generate photons under the excitation of the X-ray, the silicon photomultiplier array layer comprises silicon photomultipliers in one-to-one correspondence with the scintillation crystals of the scintillation crystal array layer, and when each silicon photomultiplier is configured to generate photons when the corresponding scintillation crystal generates photons, the silicon photomultiplier outputs a current signal; and a processor which is used for receiving and processing the current signal and generating a detection result according to the current signal.

Description

technical field [0001] The invention belongs to the field of cable detection, and in particular relates to a cable non-destructive detection device. Background technique [0002] As the degree of cableization of urban power grids continues to increase, the requirements for the reliability of cable power supply continue to increase. In the actual line operation process, due to factors such as construction, aging, manufacturing defects, and installation defects, the probability of cable failure is very high. Cable faults lead to the failure of normal power supply, seriously affecting the production of enterprises, daily life, urban construction and other aspects, causing huge losses to users. It is very important to accurately grasp the internal state of the cable, formulate correct maintenance countermeasures, and avoid sudden accidents caused by cable quality problems. The existing live detection technology cannot detect in a timely and effective manner. If it is not discov...

AI Technical Summary

Problems solved by technology

[0003] Due to the low accuracy, reliability and safety of traditional detection methods, it is becoming more and more difficult to make timely identification and diagnosis of faults, and it is difficult to apply to online real-time detection and troubleshooting of cables and intermediate joints, while other methods can meet the requirements of The on-line detection methods of cables are mostly ultrasonic and high-frequency partial discharge detection, which are greatly affected by on-site interference

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