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BPN599: MEMS Electronic Compass: Three-axis Magnetometer
| Project ID |
BPN599 |
| Website |
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| Start Date |
Tue 2011-Feb-01 11:02:04 |
| Last Updated |
Tue 2013-Jan-29 16:39:24 |
| Abstract |
The goal of this is project is to develop a low-power three axis MEMS magnetic sensor suitable for use as an electronic compass in smart phones and portable electronics. Our objective is to achieve a resolution of 200 nT/rt Hz and power consumption of 5mW/axis with DC power supply of 3.3V. To enable co-integration with a 3-axis accelerometer, we seek to optimize sensor performance without the need for a vacuum seal. Although past devices designed by our group have demonstrated that our resolution goal is reachable, these devices suffered from dc offset larger than Earth�s field and required an external programmable oscillator for operation. Here, we aim to reduce offset by two orders of magnitude and develop self-oscillation loops to excite the sensor at its natural frequency. |
| Status |
Continuing |
| Funding Source |
Federal |
| IAB Research Area |
Physical Sensors & Devices |
| Researcher(s) |
Vashwar T. Rouf, Mo Li |
| Advisor(s) |
David A. Horsley |
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