Patent ID: 6320532
Filing Date: 2001-11-20
Classification: G01F,G01S

Abstract:
A low power radar level transmitter having reduced ground loop errors, the transmitter comprising:a termination electrically couplable to a reference voltage and extendable into a process product;a low power microwave transceiver electrically coupled to the termination, the transceiver being adapted to generate a microwave signal with the termination and receive a reflected microwave signal from the process product;a level calculator electrically coupled to the microwave transceiver;a loop communicator electrically coupled to the level calculator and electrically couplable to a process control loop;a power supply electrically coupled to the level calculator, the loop communicator, and the microwave transceiver and electrically couplable to the process control loop;a first low frequency isolator coupling the microwave transceiver to the termination; anda second low frequency isolator coupling the microwave transceiver to the reference voltage.