Patent ID: 9702781
Date: 2017-07-11
CPC Classifications: G01M

Claim:
1. A leakage detection target and a leakage detection device which detects leakage of fluid of the leakage detection target, the leakage detection device comprising: a sensor holding body; an ultrasonic sensor which is held by the sensor holding body to face a leakage port that is provided in a leakage detection target member and causes a sealing part in the leakage detection target member and the outside to communicate with each other; an ultrasonic passage configured for alignment with the leakage port in a straight line between a sensor surface of the ultrasonic sensor and the leakage port; and a processing circuit which processes an ultrasonic wave obtained by the ultrasonic sensor, and the leakage port is provided for detecting a leakage and is not used as a fluid passage of the leakage detection target.