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Modeling and improvement of a low-frequency micro-accelerometer.
- Source :
-
Review of Scientific Instruments . Feb2021, Vol. 92 Issue 2, p1-5. 5p. - Publication Year :
- 2021
-
Abstract
- A sensitivity- and resolution-improving method for a low-frequency micro-vibration accelerometer is presented in this paper. A sensitivity model of the measurement system is derived and established. The key parameters that limit the sensitivity and the resolution of the accelerometer were identified through the sensitivity coefficient analysis method. The structural parameters and the signal process method were then optimized. Experimental results show that the sensitivity of the accelerometer has improved from 1.10 V/(m/s2) to 19.21 V/(m/s2), and the resolution has improved from 1.47 mm/s2 to 0.21 mm/s2. The lowest working frequency range has expanded from 1 Hz to 0.7 Hz. The presented method is effective and cheap and can be applied to other sensors. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ACCELEROMETERS
*SIGNAL processing
*SENSITIVITY analysis
Subjects
Details
- Language :
- English
- ISSN :
- 00346748
- Volume :
- 92
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Review of Scientific Instruments
- Publication Type :
- Academic Journal
- Accession number :
- 148966986
- Full Text :
- https://doi.org/10.1063/5.0024940