SELF-CALIBRATING LINEAR VOLTAGE DIFFERENTIAL TRANSFORMER DEMODULATOR

摘要

A calibration system includes an excitation module that introduces an excitation signal to a primary coil of a differential transformer, a measurement module that measures, at a first phase shift, a positive value of an induced signal. The induced signal is caused by the excitation signal on a secondary coil of the differential transformer. The system further includes a calculation module that compares the positive value to a last positive value to form a compared positive value, and a calibration module that changes the first phase shift based on the compared positive value.

主权项

1. A calibration system comprising:
an excitation module that introduces an excitation signal to a primary coil of a differential transformer; a measurement module that measures, at a first phase shift, a positive value of an induced signal, the induced signal being created in a secondary coil of the differential transformer due to the excitation signal; a calculation module that compares the positive value to a last positive value to form a compared positive value; and a calibration module that changes the first phase shift based on the compared positive value.