LOW-POWER RADAR TYPE LEVEL GAUGE WITH INTENSIFIED DIAGNOSTIC FUNCTION

摘要

PROBLEM TO BE SOLVED: To provide a low-power radar type level gauge having intensified diagnostic function. SOLUTION: A microwave transceiver 140 generates a microwave signal, and the microwave signal is advanced along a termination 110 through a reference impedance discontinuous surface 155 and propagated into the interface 127 of a process product. The first part of the signal is reflected by the reference impedance discontinuous surface, and the second part is reflected by the interface of the process product. A diagnostic signal is generated on the basis of the characteristic of the first reflected part. A level output is generated on the basis of the first and second reflected parts.