Printer Friendly

INTERNET-ASSISTED REMOTE CALIBRATION DEMONSTRATED.

NIST has demonstrated an Internet-assisted calibration of an electronic instrument located at the Sandia National Laboratories (SNL). This is the first example of a so-called "e-calibration" in the electrical area on a remote programmable instrument for a NIST customer. The instrument under test at SNL was a multifunction calibrator used to calibrate the five electrical measurement functions available on most digital multimeters (DMMs). The reference at NIST for this test was a commercial multifunction calibrator, which is periodically characterized using basic NIST electrical standard artifacts. Artifact calibration of commercial calibrators also is used at many industrial standards laboratories; however, even with automation, it takes a skilled metrologist about one week to perform the characterization. The objective of the new e-calibration service is to relieve NIST customers of this burden by performing an in situ calibration of their calibrator using a precision DMM, calibrated by the NIST-characterized multifunction calibrator, as a traveling transfer standard. The DMM and the calibrators are fully programmable, and the control software used to calibrate them implements a test set-up and the test parameters for each instrument. It is critical that the same test procedures are employed at both laboratories.

A password-accessible calibration report for the SNL calibrator was posted to evaluate the usefulness of electronic test reports. With further refinements, it is expected that this new calibration process will become a NIST Special Test next year.
COPYRIGHT 2000 National Institute of Standards and Technology
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2000, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

Article Details
Printer friendly Cite/link Email Feedback
Publication:Journal of Research of the National Institute of Standards and Technology
Article Type:Brief Article
Geographic Code:1USA
Date:Sep 1, 2000
Words:230
Next Article:NIST WATT BALANCE LIVES.
Topics:


Related Articles
E-CALLBRATION SERVICE SUCCESSFULLY DEMONSTRATED BY NIST.
A Careful Consideration of the Calibration Concept.
NIST DEMONSTRATES REMOTE OPERATION OF 10 V JOSEPHSON VOLTAGE STANDARD SYSTEM.
NIST mechanisms for disseminating measurements.
Internet-assisted, on-site special test performed by NIST. (News Briefs).
Doctors explore life-end options.
Online research strategies for the bookish lawyer: lawyers with more legal than technical know-how can still use the many computer tools available to...
Thermal-Infrared Transfer Radiometer validates radiance scales used on land, at sea, and in space. (News Briefs).
A summary of heat-flux sensor calibration data.

Terms of use | Privacy policy | Copyright © 2021 Farlex, Inc. | Feedback | For webmasters |