Back to your search result

Description

The most accurate ac voltage measurements are made by comparing the heating effect of an unknown ac signal to that of a dc reference using devices known as thermal converters. In its most basic form, thermal converters consist of a thermocouple placed at the midpoint of a heater structure, commonly a thin wire. These devices are extremely broadband, with a frequency range from 10 Hz to more than 100 MHz, and generally have input voltages limited to a few volts. The quantity of interest, called the ac-dc difference, can be nearly zero at audio frequency, but may be as large as several percent at 100 MHz.

Miscellaneous

Certificate of Analysis (specimen)

Reference Material CoA specimen: for the current lot, please contact your customer service representative at info@labmix24.com

Product data sheet

View all available product details e.g. description, analytes/parameters, CAS Number, concentrations/values, sales unit/product format, method, source, transport information

National Institute of Standards and Technology

NIST provides over 1300 Standard Reference Materials® as well as articles and practice guides describing the development, analysis and use of SRMs.

NIST Standard Reference Materials are used by analytical laboratories in industry, academia and government in order to facilitate commerce and trade and to advance research and development. The SRMs are produced by the engineering laboratory, the material measurement laboratory, and the physical measurement laboratory at NIST. They are available for chemical composition, physical properties, and engineering materials.