Comparison of long-term stability of AM versus FM gyroscopes

Eminoglu, Burak; Yeh, Yu-Ching; Izyumin, Igor; Nacita, Isaac; Wireman, Mark; Reinelt, Adam; Boser, Bernhard E.

doi:10.1109/memsys.2016.7421790

Cited by 37 publications

(12 citation statements)

References 2 publications

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“…Rate-integrated gyroscopes are also known as whole-angle gyroscopes that operate on the antiphase oscillation concept [ 28 ]. Eminoglu et al [ 92 ] reported a vibrating ring gyroscope based on amplitude modulation and frequency modulation. The reported gyroscope showed considerable improvements in the bias stability and scale factor.…”

Section: Reliability Issuesmentioning

confidence: 99%

A Review of MEMS Vibrating Gyroscopes and Their Reliability Issues in Harsh Environments

Gill

Howard

Mazhar

et al. 2022

Sensors

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Micro-electromechanical systems (MEMS) vibrating gyroscopes have gained a lot of attention over the last two decades because of their low power consumption, easy integration, and low fabrication cost. The usage of the gyroscope equipped with an inertial measurement unit has increased tremendously, with applications ranging from household devices to smart electronics to military equipment. However, reliability issues are still a concern when operating this inertial sensor in harsh environments, such as to control the movement and alignment of mini-satellites in space, tracking firefighters at an elevated temperature, and assisting aircraft navigation in gusty turbulent air. This review paper focuses on the key fundamentals of the MEMS vibrating gyroscopes, first discussing popular designs including the tuning fork, gimbal, vibrating ring, and multi-axis gyroscopes. It further investigates how bias stability, angle random walk, scale factor, and other performance parameters are affected in harsh environments and then discusses the reliability issues of the gyroscopes.

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Section: Reliability Issuesmentioning

confidence: 99%

A Review of MEMS Vibrating Gyroscopes and Their Reliability Issues in Harsh Environments

Gill

Howard

Mazhar

et al. 2022

Sensors

View full text Add to dashboard Cite

show abstract

“…To solve this problem, a method has been proposed in which a single resonator is used to alternately excite the CM mode and the CCW mode. 8 In this method, operation as a FM gyroscope is enabled by observing the difference between the frequency during the CW mode and the frequency during the CCW mode. A similar method is to use the two-dimensional Lissajous oscillation of a single resonator for which the resonant frequency of the X-and Yaxes is intentionally shifted.…”

Section: Introductionmentioning

confidence: 99%

Automated Frequency and Quality-Factor Matching Method for Frequency Modulated / Rate Integrating Gyroscope

Tsukamoto

Tanaka

2019

IEEJ Trans. SM

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This paper reports an automated tuning method for a frequency modulated / rate integrating gyroscope (FM/RIG). The frequency and quality factor mismatches in a MEMS resonator cause the mode-coupling, thus degrade the accuracy of the gyroscope. The X-Y phase difference and amplitude ratio of driving signals are used as the tuning parameters for the mismatch compensation. An automated tuning method based on the relationship between those tuning parameters and mode-coupling terms were developed. Using the proposed method, the mode-coupling effect, which comes from the frequency and quality factor mismatch, could be 3 orders of magnitude smaller than the noncompensated one. K E Y W O R D Sdegenerated resonator, frequency modulated gyroscope, MEMS gyroscope, mode matching, rate integrating (whole angle) gyroscope Electr Eng Jpn. 2019;209:57-63.

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“…However, if the resonator characteristics and the temperatures during operation of the two resonators are not exactly the same, the FM gyroscope will not function as designed. To solve this problem, a method has been proposed in which a single resonator is used to alternately excite the CM mode and the CCW mode . In this method, operation as a FM gyroscope is enabled by observing the difference between the frequency during the CW mode and the frequency during the CCW mode.…”

Section: Introductionmentioning

confidence: 99%

Automated frequency and quality‐factor matching method for frequency modulated / rate integrating gyroscope

Tsukamoto

Tanaka

2019

Electrical Engineering Japan

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This paper reports an automated tuning method for a frequency modulated / rate integrating gyroscope (FM/RIG). The frequency and quality factor mismatches in a MEMS resonator cause the mode‐coupling, thus degrade the accuracy of the gyroscope. The X‐Y phase difference and amplitude ratio of driving signals are used as the tuning parameters for the mismatch compensation. An automated tuning method based on the relationship between those tuning parameters and mode‐coupling terms were developed. Using the proposed method, the mode‐coupling effect, which comes from the frequency and quality factor mismatch, could be 3 orders of magnitude smaller than the noncompensated one.

show abstract

Comparison of long-term stability of AM versus FM gyroscopes

Cited by 37 publications

References 2 publications

A Review of MEMS Vibrating Gyroscopes and Their Reliability Issues in Harsh Environments

A Review of MEMS Vibrating Gyroscopes and Their Reliability Issues in Harsh Environments

Automated Frequency and Quality-Factor Matching Method for Frequency Modulated / Rate Integrating Gyroscope

Automated frequency and quality‐factor matching method for frequency modulated / rate integrating gyroscope

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