AUTOMATIC CALIBRATION OF MULTIPLEXED ANALOG DATA COLLECTOR AND MULTIPLEXED ANALOG DATA COLLECTOR

摘要

In a multiplexed and microprocessor-based data acquisition system involving temperature measurement with temperature resistor thermometer devices (RTD), automatic signal substitution for calibration is effected without physically interrupting the measurement signal path by taking three measurements between the three wires at the input and using with the microprocessor a cancellation algorithm.