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A MicroGyro With Quartz Fork Sensor

Fengqiu Wang

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Abstract

Mainly targeting the automotive application, Systron Donner’s MicroGyro with quartz fork sensor uses a vibrating quartz tuning fork to sense angular rate, acting as a Coriolis sensor, coupled to a similar fork as a pickup to produce the rate output signal. In this paper, the theoretical analysis of the quartz fork model is presented. Following that, the control of the drive magnitude and design of the pickup path are discussed in details. Experiment results from mechanical testing and electrical testing are presented to show that the MicroGyro has achieved 0.03°/s/rtHz.

About this research paper

What this paper is about

Mainly targeting the automotive application, Systron Donner’s MicroGyro with quartz fork sensor uses a vibrating quartz tuning fork to sense angular rate, acting as a Coriolis sensor, coupled to a similar fork as a pickup to produce the rate output signal. In this paper, the theoretical analysis of the quartz fork model is presented. Following that, the control of the drive magnitude and design of the pickup path are discussed in details. Experiment results from mechanical testing and electrical testing are presented to show that the MicroGyro has achieved 0.03°/s/rtHz.

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Available abstract

Mainly targeting the automotive application, Systron Donner’s MicroGyro with quartz fork sensor uses a vibrating quartz tuning fork to sense angular rate, acting as a Coriolis sensor, coupled to a similar fork as a pickup to produce the rate output signal. In this paper, the theoretical analysis of the quartz fork model is presented. Following that, the control of the drive magnitude and design of the pickup path are discussed in details. Experiment results from mechanical testing and electrical testing are presented to show that the MicroGyro has achieved 0.03°/s/rtHz.

Key concepts: Fork (system call), Tuning fork, Pickup, Quartz, SIGNAL (programming language), Automotive industry, Materials science, Computer science

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