Accession Number:

AD0271506

Title:

CONSTRUCTION AND CALIBRATION OF A HALL-EFFECT GAUSSMETER

Descriptive Note:

Corporate Author:

AERONAUTICAL SYSTEMS DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1961-11-01

Pagination or Media Count:

1.0

Abstract:

The design and construction of a laboratory gaussmeter for quick measurement of steady magnetic fields is described. The instrument was battery-powered. When used with a Siemens millivoltmeter as the indicating instrument, the gaussmeter has three ranges 7.5, 15 and 30 kilogauss full scale with an accuracy of or - 1. The instrument is fully portable. A HewlettPackard VTVM can be used alternately as the indicator. This made six more ranges available, 3000, 1000, 300, 100, 30 and 10 gauss, with an accuracy of about or - 5. Ranges of 3 and 1 gauss can be used for rough field estimates only. The VTVM requires line power. The In-As probe had good temperature stability and integrated over an area as small as 2 sq mm. The meter incorporates a probe current stabilization circuit to reduce the scatter in field mapping. In the upper ranges, the meter was calibrated against a nuclear magnetic resonance gaussmeter. Calibration curves are presented and should be referred to if the meter is used for accurate measurements. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE