发明名称 |
MEMBRANE BASED MAGNETOMETER |
摘要 |
Various exemplary embodiments relate to a magnetometer device to measure oscillation frequency, including a feedthrough loop including an amplifier and a voltage bias connected to a first input of a metallic membrane; a membrane ground connected to a membrane output; a fixed plate including a first fixed plate output connected to a second input of the amplifier, wherein the fixed plate is physically separated from the metallic membrane but connected to the metallic membrane by a Lorentz force, and where the physical separation differs due to an angle of a magnetic field relative to a direction of a current; a second fixed plate output sensitive to the Lorentz force; and a circuit connected to the second fixed plate output to calculate an angle of the magnetic force based upon the Lorentz force. |
申请公布号 |
US2016054400(A1) |
申请公布日期 |
2016.02.25 |
申请号 |
US201414466488 |
申请日期 |
2014.08.22 |
申请人 |
ams International AG |
发明人 |
van Beek Jozef;van der Avoort Casper |
分类号 |
G01R33/028;G01C17/28 |
主分类号 |
G01R33/028 |
代理机构 |
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代理人 |
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主权项 |
1. A magnetometer device to measure oscillation frequency, the device comprising:
a feedback loop comprising an amplifier and a voltage bias connected to a first input of a metallic membrane; a membrane ground connected to a membrane output; a fixed plate comprising a first fixed plate output connected to a second input of the amplifier, wherein the fixed plate is physically separated from the metallic membrane but connected to the metallic membrane by a Lorentz force, and where the physical separation differs due to an angle of a magnetic field relative to a direction of a current; a second fixed plate output sensitive to the Lorentz force; and a circuit connected to the second fixed plate output to calculate an angle of the magnetic force based upon the Lorentz force. |
地址 |
Rapperswil-Jona CH |