A standard electret microphone can detect sub-audio "sounds" when some simple equalization circuitry is added.

Carolyn Informative? We’ll see about that, Carolyn. My guess is that your ambient air temperature sensor went — I think the technical term is — kerflooey. You have an automatic climate ...

The temperature control for the core payload in this context demands extreme precision, needing to be better than 5 μK/Hz1/2. Compared to resistive and optical temperature sensors, resonant MEMS ...

Shien-Ming Wu School of Intelligent Engineering, South China University of Technology, Guangzhou 510641, China ...

This study proposes a high-sensitivity, wide-range optical fiber sensor designed for cryogenic temperature detection. The sensor consists of an optical fiber Sagnac interferometer (SI), multiple ...