Passive transmitting sensor

摘要: The disclosed system comprises a receiver that is inductively coupled to one or more passive transmitters by means of receiving inductor. sweep signal source which equally the inductor and reference transmitter includes an L-R-C circuit comprised transmitting inductor, temperature-dependent capacitor, resistor may be variable fixed, depending upon application. As passes through resonant frequency transmitter, forms low impedance load magnetically near induction electromagnetic field produced Changes in are used determine temperature variation. peak voltages determinant variation resulting from changes pressure strain, they proximity receiver, strain.