A New Self-Balancing DC-Substitution RF Power Meter
Neil T. Larsen · 1976
Researchers developed a new DC-substitution RF power meter that is not a form of Wheatstone bridge. The instrument allows four-terminal measurement of bolometer resistance and provides improved accuracy and lower noise at lower cost. Servo system measurement errors are typically less than 0.01 percent. Performance testing showed a standard deviation of about 0.008 percent over 1024 random measurements.

