Fault diagnosis system of laser device

Abstract

The invention provides a fault diagnosis system of a laser device. The fault diagnosis system comprises a photoelectric acquisition module, a reference voltage module, a voltage comparator module, a filtering module and a smooth mean value module, wherein the photoelectric acquisition module outputs a voltage signal with a corresponding value according to the intensity of an optical signal emitted by a laser device, the reference voltage module outputs corresponding instantaneous reference voltage according to the instantaneous power of the laser device, the voltage comparator module is used for comparing the instantaneous voltage output by the photoelectric acquisition module with the instantaneous reference voltage output by the reference voltage module and outputting a corresponding signal, the filtering module is used for performing high-frequency filtering on the signal output by the comparator module, the smooth mean value module continuously collects the signals filtered by the filtering module for multiple times, the smooth mean value module calculates a mean value according to the collected signals and compares the mean value with a set expected value, when the mean value is higher than the expected value, it is indicated that the laser device works normally, and when the mean value is lower than the expected value, it is indicated that the laser device breaks down.

Description

technical field [0001] The invention belongs to the field of optical fiber and laser technology, and in particular relates to a laser fault diagnosis system. Background technique [0002] Fiber laser is a new generation of high-energy light source that is widely used. The output power of fiber laser is increasing day by day. At the same time, the higher and higher output power makes the optical system bear more and more pressure and risk. In particular, the aging of the laser itself and the existence of internal and external factors such as harsh application environments increase the risk of laser optical path failure. Therefore, for the laser optical system, it is more beneficial to improve the working efficiency of the laser and protect the laser optical system more effectively by quickly distinguishing the true and false of the fault in the laser optical system and taking corresponding protective measures. Contents of the invention [0003] Aiming at the above-mentione...

AI Technical Summary

Problems solved by technology

In particular, the aging of the laser itself and the existence of internal and external factors such as harsh application environments increase the risk of laser optical path failures.

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