Multi-channel ultrasonic acoustic camera for mechanical state monitoring

Abstract

A multi-channel ultrasonic acoustic camera for mechanical state monitoring includes an ultrasonic wave sensing board formed by arranging a plurality of MEMS ultrasonic wave sensors sensing ultrasonic waves with a waveband of 20 to 1000 KHz produced from mechanical emission; an ultrasonic wave collecting part connected with the ultrasonic sensing board and converting the ultrasonic waves received by the MEMS ultrasonic wave sensors to digital signals and sending the digital signals to a central processing part; a camera lens shooting images in the facing direction of the ultrasonic wave sensing board; an image processing part converting signals of images shot by utilizing the camera lens to electric signals and sending the signals to the central processing part; the central processing part performing analysis and treatment on the ultrasonic signals received through the ultrasonic wave collecting part and the image signals received through the image processing part; and a display part enabling an ultrasonic wave sound field obtained through calculation of the central processing part to be synchronized with images and to be displayed.

Description

technical field [0001] The present invention relates to an ultrasonic acoustic camera for diagnosing the state of machinery by constructing multi-channels of an existing ultrasonic state monitoring system composed of one channel, and displaying ultrasonic noises generated due to failures as images. Background technique [0002] Publication Patent No. 10-2014-0139268 (Korea Electric Power Corporation) discloses a transformer monitoring device utilizing ultrasonic waves. The transformer monitoring device utilizing ultrasonic waves includes: AE (Acoustic Emission, acoustic emission) sensors, which detect transformer faults; A processing and A / D (Analog to Digital, analog-to-digital) conversion part, which processes the signal or information detected by the AE sensor and converts it into a digital; a communication and control part, which analyzes the signal or information converted into the digital and detect the relevant fault diagnosis information of the transformer, and conve...

AI Technical Summary

Problems solved by technology

[0003] At present, MEMS-based ultrasonic sensors have not yet come out, and there are no products of ultrasonic acoustic cameras that are not theoretical but commercialized.

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