问题：
Feature: What is the auto zero function?
答案：
Over time, the internal temperature of the instrument changes. These temperature changes also cause the circuit components to drift. For every measurement, the SourceMeter instruments acquire the input signal, measure a reference voltage, and measure a short at the input of the A-to-D converter. Therefore, for every reading the instrument actually takes, three measurements are made to compensate for the thermoelectric EMFs. All three measurements are taken at the same NPLC setting.
常见问题 ID 70911
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