| Autor: |
K. Hayashi, L. F. Zambresky, T. Oguti, T. Watanabe |
| Rok vydání: |
1978 |
| Předmět: |
|
| Zdroj: |
Journal of geomagnetism and geoelectricity. 30:619-630 |
| ISSN: |
0022-1392 |
| DOI: |
10.5636/jgg.30.619 |
| Popis: |
An experiment was carried out for a precise calibration of the absolute sensitivity of a high-μ metal core solenoid used as a sensor of an induction magnetometer. The high-μ metal core induction magnetometer was operated simultaneously with an air-core loop antenna induction magnectometer system which has a known absolute sensitivity. The two systems were run at Churchill, Manitoba in February, 1977. A moderately intense quasisinusoidal Pc 1 event recorded by both systems on the vertical component was made use of as a calibration signal. Comparison of the outputs from the two induction magnetometers made it possible to determine the sensitivity of the high-μ metal core solenoid. A theory was also presented to calculate the absolute sensitivity of a high-μ metal core solenoid. Agreement between the theory and the experiment is good. The theory shows us how to design a reliable and portable high-sensitivity solenoid. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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