Title :
RF-DC differences of micropotentiometers
Author :
Huang, De-Xiang ; Rebuldela, Gregorio ; Harper, Jerry D.
Author_Institution :
Ballantine Labs. Inc., Cedar Knolls, NJ, USA
fDate :
4/1/1997 12:00:00 AM
Abstract :
Various sources for the RF-DC differences of micropotentiometers (micropots) are analyzed and calculated. The results are shown to agree well with experimental values. A new design is introduced that reduces the RF-DC differences of the micropots significantly. Observations show good stability over a long period. This makes the micropot suitable as a primary RF and audio standard in the microvolt and millivolt ranges
Keywords :
calibration; measurement standards; potentiometers; stability; voltage measurement; RF-DC differences; annual resistors; audio standard; lifetime stability; micropotentiometers; micropots; primary RF standard; stability; thermoelement; transmission line; Conductors; Current measurement; Frequency; Impedance; Inductance; Resistance heating; Resistors; Tellurium; Transmission line measurements; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
