GAS DETECTOR USING A GOLAY CELL

• Main Authors: YANG, Wei, MARTA, Teresa M, WILLETT, Martin, WATTS, Rodney R
• Format: Patent
• Language: English; French; German
• Published: 15.08.2018
• Subjects: COLORIMETRY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; PHYSICS; RADIATION PYROMETRY; TESTING

A gas detecting system (200) comprising: a gas detector device (100) with a Golay cell, the Golay cell comprising: a microphone (102) having a front surface (104) with a sound collecting aperture (108) for receiving sound; a substrate (110); a gas cavity (112) configured to detect a first gas formed in the substrate (110) such that the gas cavity (112) is in gas communication with the sound collecting aperture (108) and the front surface (104) forms a side surface of the gas cavity (112); wherein the gas cavity (112) includes a fill gas comprising at least one or more of hydrogen, argon, nitrogen, krypton, xenon, hydrocarbons, or fluorocarbons; wherein the gas cavity (112) is sealed such that ambient gas cannot enter the gas cavity (112) once it is sealed; a window (114) abutting the substrate (110) to form a side surface of the gas cavity (112), characterized in that the substrate (110) is a printed circuit board, and in that the microphone (102) is electrically connected with the substrate (110); and wherein the gas detector device (100) is replaceable to allow the replacement of the gas detector device (100) from the gas detecting system (200).