Transducer calibration device

摘要

The output of a transducer is passed to an electrical circuit for supply to a fuel control network. In order to check the output of the transducer the output of the electrical circuit is sampled in a sample circuit when the movement of the member associated with the transducer is a known value. The signal from the sample circuit is compared in a comparator with a reference signal. Any difference is passed to a gain determining circuit which calculates a new gain value for a variable gain amplifier in the electrical circuit. The value of the gain is retained in a holding circuit and supplied to the amplifier until further adjustment is required.