Invention Grant
- Patent Title: Methods and systems for seismic sensors
- Patent Title (中): 地震传感器的方法和系统
-
Application No.: US12180560Application Date: 2008-07-27
-
Publication No.: US07929379B2Publication Date: 2011-04-19
- Inventor: Masahiro Kamata , Francis Maissant
- Applicant: Masahiro Kamata , Francis Maissant
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent Daryl R. Right; Jofy DeStefanis; Jeff Griffin
- Main IPC: H04R9/02
- IPC: H04R9/02
Abstract:
Methods and systems for determining coil eccentricity of seismic sensors configured or designed for use in seismic signal detection. A direct electrical current is applied to a moving coil of a seismic sensor such that the moving coil is dislocated from a neutral position relative to the magnetic field in the seismic sensor. A predetermined indicator is measured and eccentricity of the coil (δ) relative to the center of the magnetic filed is determined using the predetermined indicator.
Public/Granted literature
- US20100020636A1 METHODS AND SYSTEMS FOR SEISMIC SENSORS Public/Granted day:2010-01-28
Information query
