All thermal anemometers work by inferring air speed from measurements of thermal impedance (Z) between a heated sensor and the surrounding air: An example of the constant power type can be found in ...
An N-channel JFET has a low bias current when its gate is biased negative to the source. However, this requires either that the gate voltage be biased negative with respect to the source voltage or ...
Scientists from RWTH Aachen University, AMO GmbH, AIXTRON SE, and EPFL have demonstrated power detectors based on Molybdenum disulphide (MoS 2) that operate at zero bias.
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