Invention Grant
- Patent Title: Controlled damping geophone
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Application No.: US13858935Application Date: 2013-04-08
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Publication No.: US09612350B2Publication Date: 2017-04-04
- Inventor: Masahiro Kamata
- Applicant: Schlumberger Technology Corporation
- Applicant Address: US TX Sugar Land
- Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee Address: US TX Sugar Land
- Agent Trevor G. Grove
- Main IPC: G01V1/18
- IPC: G01V1/18 ; G01V13/00

Abstract:
Vibration transducers, sensors including the vibration transducers, and methods for manufacturing the same. The vibration transducer may include a magnet. The vibration transducer may include a bobbin disposed about the magnet. The vibration transducer may include a first coil disposed about the bobbin. The vibration transducer may include a controllable damping coil disposed about the bobbin. The first coil is movable relative to the magnet. The magnet is polarized with respect to the axis of the vibration transducer.
Public/Granted literature
- US20140301160A1 Controlled Damping Geophone Public/Granted day:2014-10-09
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