An Apparatus for and a Method of Measuring Magnetic Effects Due to Eddy Currents.
Abstract
An eddy current effects measurement apparatus employs, inter alia, a reference sensor located so that it measures an applied field and any environmental fields but does not measure eddy current effects. Then an estimate(s) of the applied field at the locus of a plurality of measurement sensors is constructed and stored. Next, a conductive object or material to be measured is placed in the applied field in the vicinity of the plurality of measurement sensors away from the reference sensor and measurements are made of the applied field, any environmental fields and any fields due to the effects of eddy currents induced into the conductive object or material. Finally, the aforementioned stored estimate(s) are used to compensate the applied field at the locus of the plurality of measurement sensors so that the eddy current effects due to the placement of the conductive object or material can be observed on a keyboard/display or printed via a printer/plotter.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 24, 1985
- Accession Number
- ADD012061
Entities
People
- Paul B. Tarr
Organizations
- United States Department of the Navy