HIGH-SPEED GAS LEAKAGE DETECTOR

摘要

PROBLEM TO BE SOLVED: To detect leakage at a high speed, when hydrogen gas or the like is leaked, since monitoring can be performed at high time resolution using ultrasonic waves.;SOLUTION: A high-speed gas leakage detector for detecting the leakage of a second gas, by containing at least a first gas between an ultrasonic transmission element and an ultrasonic receiving element, propagating the ultrasonic wave through a detected gas having the possibility of being contained in the second gas to detect the leakage and measuring the propagated ultrasonic intensity by the ultrasonic-receiving element comprises measuring 100% of the first gas by the ultrasonic-receiving element; and detecting the leakage of the second gas by the difference between the measured value and a measured value of the detected gas.;COPYRIGHT: (C)2008,JPO&INPIT