Complete Characterization of Zener Standards at 10 V for Measurement Assurance Program (MAP)

Published

April 1, 2001

Author(s)

Yi-hua D. Tang, June E. Sims

Abstract

A complete characterizaiton of Zener standards for temperature, pressure, and humidity is being performed to improve the uncertainty of a Measurement Assurance Program (MAP) that uses 20 V Zeners as travelling standards. The procedure and equipment used for this work is briefly described. For the Zener standards we have tested, the temperature coefficients range from 1 nV/ω to 4 nV/ω expressed by Zener output change vs. thermistor resistance, and the pressure coefficients range from 1 nV/hPa to 20 nV/hPa. The time constant of Zener response to relative humidity change varies from days to nearly infinity. By choosing low noise and non-humidity sensitive Zeners as transfer standards and correcting for the pressure and temperature effects, the uncertainties of a MAP can be improved.

Citation

IEEE Transactions on Instrumentation and Measurement

Volume

50

Issue

2

Pub Type

Journals

Download Paper

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Keywords

MAP, Zener standards, environmental effects, correlation functions, uncertainty, correlation functions, environmental effects, Measurement Assurance Program, Zener standards, uncertainty

Citation

Tang, Y. and Sims, J. (2001), Complete Characterization of Zener Standards at 10 V for Measurement Assurance Program (MAP), IEEE Transactions on Instrumentation and Measurement, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=20460 (Accessed July 27, 2024)