| Abstract: | By using a very stable voltage reference and a high precision digital-to-analog converter to set bias in digital increments, the inherently high stability and accuracy of a ring core magnetometer can be significantly enhanced. In this case it becomes possible to measure not only variations about the bias level, but to measure the entire value of the field along each magnetometer sensing axis in a nearly absolute sense. To accomplish this, one must accurately determine the value of the digital bias increment for each axis, the zero field offset value for each axis, the scale values, and the transfer coefficients (or nonorthogonality angles) for pairs of axes. This determination can be carried out very simply, using only the Earth‘s field, a proton magnetometer, and a tripod-mounted fixture which is capable of rotations about two axes that are mutually perpendicular to the Earth‘s magnetic field vector. ?? 1990. |
| Genre: | Article |
| ProdID: | 70015766 |
| Citation Author: | Green, Jr. , A. W. |
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| Citation End Page: | 122 |
| Citation Issue: | 1-2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Physics of the Earth and Planetary Interiors |
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| Citation Number Of Pages: | 4 |
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| Citation Publisher: | Elsevier |
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| Citation Search Results Text: | Determination of the accuracy and operating constants in a digitally biased ring core magnetometer; 1990; Article; Journal; Physics of the Earth and Planetary Interiors; Green, Jr. , A. W. |
| Citation Start Page: | 119 |
| Citation Volume: | 59 |
| Citation Year: | 1990 |
| Type: | citation/reference |
| Text: | Determination of the accuracy and operating constants in a digitally biased ring core magnetometer; 1990; Article; Journal; Physics of the Earth and Planetary Interiors; Green, Jr. , A. W. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1016/0031-9201(90)90217-L |
| Date Other: | Mon, 1 Jan 1990 00:00 -0600 |
| Publisher: | Elsevier |
