Fault detection instrument of rotary equipment based on acoustic emission technique

Abstract

This invention relates to one rotation device fault test machine based on sound emission technique, which comprises sound emission sensor, signal adjust and automatic gain amplifier module and digital signal process module, wherein, the digital signal process module comprises DSP digital signal processor, Flash data memory, RAM data memory, RS232 series chip, programmable logic controller, keyboard, and LCD display.

Description

technical field [0001] The invention relates to a rotating equipment fault detector, in particular to a device fault detector based on acoustic emission technology. Background technique [0002] The rotating equipment fault detector can be used to detect the running state of the rotating equipment, which has obvious economic and social benefits for ensuring the safe operation of the rotating equipment and avoiding major equipment accidents and process accidents. Existing fault detectors for rotating equipment use vibration sensors (acceleration, speed or displacement sensors) to pick up equipment vibration signals and use single-chip microcomputer technology for signal processing. The low-frequency disturbance signal will be picked up by the acceleration sensor, which will affect the test results and lead to misjudgment. Moreover, the vibration analysis method judges the fault through the analysis and processing of acceleration, displacement and other signals, which is equiv...

AI Technical Summary

Problems solved by technology

Existing fault detectors for rotating equipment use vibration sensors (acceleration, speed or displacement sensors) to pick up equipment vibration signals and use single-chip microcomputer technology for signal processing. The low-frequency disturbance signal will be picked up by the acceleration sensor, which will affect the test results and lead to misjudgment. Moreover, the vibration analysis method judges the fault through the analysis and processing of acceleration, displacement and other signals, which is equivalent to secondary signal processing. real-time detection; single-chip microcomputer-based data analysis and processing system has slow operation speed, low precision, relatively simple functions, and does not meet the requirements for real-time detection and analysis of collected signals

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