Effect of Temperature on MEMS Vibratory Rate Gyroscope

Author

Keymeulen, Didier ; Peay, C. ; Yee, K. ; Li, D.L.

Author_Institution

Jet Propulsion Lab., Pasadena, CA

fYear

2005

fDate

5-12 March 2005

Firstpage

1

Lastpage

6

Abstract

We report the temperature dependence of the JPL/Boeing MEMS second generation post resonator gyroscopes and determine the effect of hysteresis over the range 35degC to 65degC. The results indicate a strong linear dependence of the drive frequency and sense frequency with temperature of 0.093Hz/degC and AGC bias voltage with temperature of 13mV/degC. The results also indicate a significant time lag of the gyroscope of these quantities when responding to external temperature variations but determined no hysteresis exists in the drive frequency, sense frequency, and AGC bias. Both the time-frequency and time-bias voltage relationships are of the form y = A+B*exp(-t/T) where A is an offset parameter in Hertz and Volts respectively and B depends on the magnitude of the temperature variation

Keywords

gyroscopes; micromechanical devices; micromechanical resonators; 35 to 65 C; MEMS; hysteresis effect; second generation post resonator gyroscopes; temperature variations; vibratory rate gyroscope; Electrodes; Frequency; Gyroscopes; Micromechanical devices; Optical resonators; Propulsion; Stability; Temperature dependence; Temperature sensors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Aerospace Conference, 2005 IEEE

Conference_Location

Big Sky, MT

Print_ISBN

0-7803-8870-4

Type

conf

DOI

10.1109/AERO.2005.1559561

Filename

1559561