NDLI: Vibration Analysis and Control of the Quartz Rate Sensor

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Wang, Frank Smith, Marc
Copyright Year	2004
Abstract	BEI Systron Donner’s family of quartz inertial sensors uses a one piece, micromachined inertial sensing element to measure angular velocity. These sensors produce an output signal proportional to the rate of rotation sensed. In this paper, the operation of the quartz rate sensor (QRS) is presented. A mathematical model of the quartz fork is extracted, and the vibration characteristics of the quartz fork are presented. In order to control the magnitude of the drive tines, an AGC/Oscillator (AGC: automatic gain control) loop is employed. The system response is analyzed using Matlab and Pspice. A switched capacitor (SC) circuit is used to realize the functions of full wave rectification (FWR), integration, and summation. The AGC level is controlled to within 0.3%/V dependency on the power supply. This fixes the scale factor of the QRS to the same level of power supply rejection.
Sponsorship	Design Engineering Division
Starting Page	369
Ending Page	376
Page Count	8
File Format	PDF
ISBN	0791847055
DOI	10.1115/IMECE2004-59430
Volume Number	Design Engineering
Conference Proceedings	ASME 2004 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2004-11-13
Publisher Place	Anaheim, California, USA
Access Restriction	Subscribed
Subject Keyword	Vibration Capacitors Circuits Micromachining Sensors Signals Quartz Rotation Waves Vibration analysis Automatic gain control Matlab
Content Type	Text
Resource Type	Article

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