Capacitance scaling system

NIST special test service for four-terminal-pair capacitance standards from 0.01 [mu]F to 100 [mu]F

“…CDUT based on reference [1]. Figure 2 shows a set of commercial standards ** to which this calibration system may be applied.…”

“…A capacitance scaling method is used to calibrate 4TP standard capacitors of values from 10 nF to 100 μF. Aoki and Yokoi introduced this technique in 1997 [1]. References [1] and [2] describe the general method and provide a detailed uncertainty analysis.…”

“…Aoki and Yokoi introduced this technique in 1997 [1]. References [1] and [2] describe the general method and provide a detailed uncertainty analysis. Aoki and Yokoi developed a calibration procedure…”

Lock-in amplifier with a high common-mode rejection ratio in the range of 0.02 to 100 kHz

“…One of the classic problems of instrumentation is the comparison of alternating voltage amplitudes [1]- [4]. Inductive voltage dividers (IVDs) are usually used for precision AC [5]- [11]ratio measurements. To calibrate IVD ratio KIVD errors, the calibrated IVD referencing method is the most widely used [12], [13].…”

Standard Capacitor Calibration Procedure Implemented Using Control Software

“…A capacitance scaling method is used to calibrate standard capacitors. This is a very powerful technique that was introduced by Aoki and Yokoi in 1997 [1]. Reference [1] describes the general method and provides a detailed uncertainty analysis.…”