Paper 4: Development of an Accurate Tuning-Fork Gyroscope

Hunt, G. H.; Hobbs, A. E. W.

doi:10.1243/pime_conf_1964_179_116_02

Cited by 9 publications

(3 citation statements)

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“…By the 1960's, engineers were seeking alternatives to the spinning mass gyroscope due to its size, fragility and expense. Subsequent technology developments enabled the realization of a functioning vibratory gyroscope [26][27][28]. The vibratory gyroscope was also later discovered to be the mechanism utilized by biological systems such as fly's ability to sense angular rotation [29].…”

Section: Vibratory Gyroscopementioning

confidence: 99%

Micro-system inertial sensing technology overview.

Allen¹

2009

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The purpose of this report is to provide an overview of Micro-System technology as it applies to inertial sensing. Transduction methods are reviewed with capacitance and piezoresistive being the most often used in COTS Micro-electromechanical system (MEMS) inertial sensors. Optical transduction is the most recent transduction method having significant impact on improving sensor resolution. A few other methods are motioned which are in a R&D status to hopefully allow MEMS inertial sensors to become viable as a navigation grade sensor. The accelerometer, gyroscope and gravity gradiometer are the type of inertial sensors which are reviewed in this report. Their method of operation and a sampling of COTS sensors and grade are reviewed as well.

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Section: Vibratory Gyroscopementioning

confidence: 99%

Micro-system inertial sensing technology overview.

Allen¹

2009

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“…An early tuning fork design has been described by Hunt and Hobbs 15 . The tuning fork, as illustrated in Fig.…”

Section: Tuning Fork Gyroscopementioning

confidence: 99%

Piezoelectric Gyro Sensor Technology

Singh

2007

DSJ

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This paper gives an insight into the piezoelectric gyro sensor technology including the principle of operation, performance-limiting phenomenon, etc. With a brief account of conventional gyro sensor technologies, a detailed discussion on piezoelectric vibrating structure gyro sensor technology has been given. The performance of various forms of vibrating structure piezoelectric gyros, including future trends, has been highlighted. Keywords . INTRODUCTIONGyroscopes are used for numerous defence and commercial applications. These include stabilisation, guidance, and navigation of torpedoes; ballistic missiles and artillery shells; inertial navigation and inertial surveying; autopilot, stabilisation and navigation of underwater vehicle, etc. Recently, automotive and consumer goods industries have shown significant attention towards purely commercial applications which include automobile accident-history recorder and stabilisation of hand-held video camera. To achieve steady flight of an aerodynamic vehicle, it is essential to control the rotation of vehicle about all the three axes by properly designed servo mechanism for correcting the disturbances received through gyroscope. Recently, system requirements have made increasing demands on gyro performance and environment capability. Further, performance improvements have resulted with increased emphasis on reduction in size and power consumption as well as on reliability improvement and reduction in manufacturing cost. Inspite of very high performance Defence Science Journal, Vol. 57, No. 1, January 2007, pp. 95-103 2007, DESIDOC 95 already achieved, there will be continued improvement in gyro technology. As a vibratory gyroscope incorporates sensing and actuation linked by control functions, it may be regarded as a smart sensor. Solid-state nature of vibrating gyroscopes makes various unique features possible. Also, there are no motors or bearings. These sensors can be designed to be extremely rugged and have long service life without the need for maintenance, have very short startup time, low power consumption, small size, and low cost, and have also achieved inertial-grade performance. . GYRO SENSOR TECHNOLOGYBased on the design, gyroscopes are classified as mechanical, optical, and vibrating structure, and based on the performance, gyroscopes are classified as inertial grade, tactical grade, and rate grade. The precession, the Sagnac effect, and the Coriolis effect are used for the detection of angular rate. The major difference between the conventional mechanical gyroscope and vibrating gyroscope is that instead of spinning wheel as used in the REVIEW PAPER

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“…The two motions are out of phase, but the noise created by the mass center shift (due probably to differential tine bending over temperature) swamps the gyroscopic torque. Hunt and Hobbs [5] describe the difficulties they encountered in making a tuning fork gyro.…”

Section: The Tuning Fork Gyromentioning

confidence: 99%

Vibrating Gyroscopes

Lawrence¹

1998

Mechanical Engineering Series

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Paper 4: Development of an Accurate Tuning-Fork Gyroscope

Cited by 9 publications

References 0 publications

Micro-system inertial sensing technology overview.

Micro-system inertial sensing technology overview.

Piezoelectric Gyro Sensor Technology

Vibrating Gyroscopes

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