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Titlebook: Geomagnetic Observatory and Survey Practice; W. F. Stuart Book 1984 D. Reidel Publishing Company, Dordrecht, Holland 1984 Aeronomy.Ice she

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樓主: Animosity
11#
發(fā)表于 2025-3-23 12:08:30 | 只看該作者
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發(fā)表于 2025-3-23 14:21:04 | 只看該作者
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發(fā)表于 2025-3-23 20:41:46 | 只看該作者
One year Experience with the CMVS 2 Magnetic Variation Station,s of the geomagnetic component on paper tape. It has a range of outputs including analogue recording of the field variations which can be measured in the range 0–1999.9 nT with a sensitivity of 0.1 nT. After a running in period of some months the standard deviation of baseline values is in the range
14#
發(fā)表于 2025-3-24 01:54:50 | 只看該作者
Automatic Digital Recording of Geomagnetic Elements by Means of a Proton Precession Magnetometer,Geomagnetic Observatory. The instrument is working with the use of a combination of the addition and compensation methods to directly measure absolute values of field components. A sophisticated equipment for the current generation and control is necessary to maintain the current flowing in the Helm
15#
發(fā)表于 2025-3-24 04:31:46 | 只看該作者
Comparison of Standard and Digital Observation at the Geomagnetic Adolf Schmidt Observatory Niemegkin on punched tape). With this observation material, for all 7 geomagnetic components hourly means are calculated. The preliminary hourly means for ., ., and . are published in the monthly report. As a rule, their comparison with the observatory data is satisfactory. Only with great geomagnetic acti
16#
發(fā)表于 2025-3-24 07:37:07 | 只看該作者
17#
發(fā)表于 2025-3-24 11:20:46 | 只看該作者
Long-Term Stability of a Torque-Balance Variometer with Photoelectric Converters in Observatory Praade at the Belsk and Nurmij?rvi Observatories demonstrated that: (a) the long-term stability of the base-line values was the same or better than that in conventional magnetometers (e.g. at Nurmij?rvi), i.e. the changes were less than 0.5 nT a month; (b) the short-term stability was the same as in th
18#
發(fā)表于 2025-3-24 14:58:16 | 只看該作者
19#
發(fā)表于 2025-3-24 21:35:04 | 只看該作者
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發(fā)表于 2025-3-25 00:31:53 | 只看該作者
978-94-010-8833-6D. Reidel Publishing Company, Dordrecht, Holland 1984
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