Method and apparatus for measurements of gravity in small diameter boreholes
An apparatus (10) for measuring gravity in a small diameter borehole comprises a pressure tube (12) and at least one pendulum gravity sensor (14) accommodated by the pressure tube. The gravity sensor comprises a pendulum (22) and circuitry (44, 46) to monitor generally continuously the swing period...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | An apparatus (10) for measuring gravity in a small diameter borehole comprises a pressure tube (12) and at least one pendulum gravity sensor (14) accommodated by the pressure tube. The gravity sensor comprises a pendulum (22) and circuitry (44, 46) to monitor generally continuously the swing period and amplitude of the pendulum. |
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