INTRODUCTION TO DCLF THERMAL MEASUREMENTS
If you were required to measure a given AC voltage, you would probably obtain an AC
response, and perform the measurement.
This is the proper procedure for the
majority of AC measurements, but there are always those instances where an AC
voltmeter is not available, or there is not one which has the proper
specifications.
This is when you would revert to AC-DC transfer measurement
procedures.
Thermal transfer standards are used extensively to provide extremely
precise low voltages and currents from DC to 1 GHz for calibration of such
instruments as the Model 410C Electronic Multimeter, Model 887 Differential
Voltmeter, and the Model 3490A Digital Voltmeter, and the Model 760A Meter
Calibrator.
The purpose of this subcourse is to provide the calibration specialist with a
working knowledge of the theory and use of the thermocouple, DCLF thermal transfer
standards, and the DCLF reference standards.
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