Accession Number : ADD015508

Title :   Device for Sensing Unwanted Electric and Magnetic Fields in a Remote Sensor Electrical Lead.

Descriptive Note : Patent, Filed 27 Aug 90, patented 4 Aug 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Blank, Robert G ; Clark, Steven K

Report Date : 04 Aug 1992

Pagination or Media Count : 4

Abstract : A device is provided for measuring unwanted electric and magnetic field induced voltages in a test lead of a remote measurement sensor. A test lead is encased within a magnetic shielding conduit and is electrically connected to a remote sensor. Another electrical lead, identical to the test lead and also encased within the magnetic shielding conduit, is terminated by a short circuit in the vicinity of the sensor. This electrical lead travels through the same environment as the test lead on its way to the measuring equipment. Electro-magnetic field interference along the path of this electrical lead is an indication of the electro-magnetic field interference along the path of the test lead.

Descriptors :   *VOLTAGE, *REMOTE DETECTORS, *ELECTROMAGNETIC SHIELDING, *PATENTS, CIRCUITS, CONDUITS, INTERFERENCE, MAGNETIC FIELDS, MEASUREMENT, SHIELDING, SHORT CIRCUITS, TEST AND EVALUATION, ELECTROMAGNETIC FIELDS, VOLTMETERS

Subject Categories : Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE