2021 IEEE 34th International Conference on Micro Electro Mechanical Systems (MEMS) | 2021

A Mems Vibrating Beam Accelerometer for High Resolution Seismometry and Gravimetry

 
 
 
 
 
 
 

Abstract


A differential MEMS vibrating beam accelerometer (VBA) demonstrating excellent stability for seismology and gravimetry applications is presented. The accelerometer response demonstrates excellent linearity over an acceleration range of ±1 g (1 g = 9.8 m s-2) with a scale factor of 9825 Hz/g. An approximately flat output Allan deviation with an average value of 15 ng is recorded over integration times τ = 1 s – 1000 s with a best-case bias instability of < 10 ng and a noise floor of 10 ng/√H. These results, taken collectively, set new benchmarks for vibrating beam MEMS accelerometers.

Volume None
Pages 196-199
DOI 10.1109/MEMS51782.2021.9375431
Language English
Journal 2021 IEEE 34th International Conference on Micro Electro Mechanical Systems (MEMS)

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