EXPLOSION-PROOF ACOUSTIC SOURCE FOR HAZARDOUS LOCATIONS
摘要
An explosion-proof system for generating acoustic energy. An exemplary embodiment of the system includes a main housing defining an open housing space and an opening. A cover structure is configured for removable attachment to the main housing structure to cover the opening and provide an explosion-proof housing structure. The cover structure includes an integral head mass. An acoustic energy emitting assembly includes the head mass, and an excitation assembly disposed within the explosion-proof housing structure. An electronic circuit is disposed within the explosion-proof housing structure to generate a drive signal for driving the excitation assembly to cause the acoustic energy emitting assembly to resonate and generate acoustic energy. In one embodiment the acoustic energy is a beam of ultrasonic energy useful for testing ultrasonic gas detectors. A method is also described for testing ultrasonic gas leak detectors using an ultrasonic source.
申请公布号
EP2671220(A1)
申请公布日期
2013.12.11
申请号
EP20110754770
申请日期
2011.06.14
申请人
GENERAL MONITORS, INC.
发明人
BALIGA, SHANKAR, B.;ROMERO, JOHN, G.;REED, SCOTT, W.;FILIMON, CHRISTIAN, S.