Ultrasonic wave airtightness detecting system based on multiple sensors and method thereof

Abstract

The invention discloses an ultrasonic wave airtightness detecting system based on multiple sensors and a method thereof. The system comprises a plurality of ultrasonic wave transmitters which are arranged in a container, an energy transducer set, a signal conditioning circuit, a main processor and a signal output module, wherein the energy transducer set, the signal conditioning circuit, the main processor and the signal output module are successively connected. The main processor is used for converting an amplified and filtered ultrasonic wave to a digital signal, and processes the digital signal through a fuzzy identification algorithm, a weak leakage determining algorithm and a data fusion and leakage determining algorithm, thereby obtaining a consistency interpretation to the leakage condition after fusing the signals of the sensors, converting a determining result to an analog signal, and transmitting the analog signal to an information terminal for displaying. The ultrasonic wave airtightness detecting system and the method thereof have high detecting precision and high detecting capability for weak leakage signals. Furthermore the ultrasonic wave airtightness detecting system has advantages of small size, high convenience in carrying, high sensitivity, high stability, and high benefit for dynamic online detection.

Description

technical field [0001] The invention relates to the field of instrument detection, in particular to an ultrasonic air tightness detection system and method based on multiple sensors. Background technique [0002] In daily life and industrial production, pressure vessels can be seen everywhere, there are gas tanks and cylinders for compressed gas storage, and pipelines for gas transmission. During the transportation of compressed gas stored in pressure vessels, leakage accidents often occur due to some unavoidable factors, such as wear, corrosion, man-made or natural damage. Gas leakage will cause material and energy loss, cause accidents, environmental pollution and equipment performance reduction. If the leakage can be found in time before the equipment is put into operation, the leakage point can be accurately located, and the leakage can be estimated, the damage caused by the leakage accident can be effectively reduced or avoided. The functions of various leak detection...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a multi-sensor-based ultrasonic airtightness detection system and method that combines multiple sensors with high sensitivity and high stability for the defect of low positioning and detection accuracy of a single sensor in the prior art

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