Design and performance evaluation of the NIST digital impedance bridge

Author

Waltrip, B.C. ; Oldham, N.M.

Author_Institution

Nat. Inst. of Stand. & Technol., Gaithersburg, MD, USA

fYear

1994

fDate

June 27 1994-July 1 1994

Firstpage

512

Lastpage

513

Abstract

An impedance bridge that compares two-terminal standard inductors to characterized resistors is described. A dual-channel digitally synthesized source and sampling digital multimeter are used to generate and measure relevant bridge signals. A linear interpolation algorithm is used to autocalibrate the bridge to a 1 nF air-dielectric capacitor. An intercomparison of the new bridge with existing measurement standards in the low audio frequency range for inductors 1 mH to 10 H is reported.<>

Keywords

automatic test equipment; bridge instruments; calibration; digital multimeters; electric impedance measurement; inductors; interpolation; measurement standards; NIST digital impedance bridge; air-dielectric capacitor; audio frequency range; autocalibration; bridge signals; dual-channel digitally synthesized source; intercomparison; linear interpolation algorithm; measurement standards; sampling digital multimeter; two-terminal standard; Bridges; Capacitors; Impedance; Inductors; Interpolation; NIST; Resistors; Sampling methods; Signal generators; Signal synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements, 1994. Digest., 1994 Conference on

Conference_Location

Boulder, CO, USA

Print_ISBN

0-7803-1984-2

Type

conf

DOI

10.1109/CPEM.1994.333190

Filename

333190