Fluidic mechanism for dual-axis gyroscope

Dau, Van Thanh; Dinh, Thien Xuan; Tran, Canh Dung; Bui, Phong Nhu; Vien, Du Dinh; Phan, Hoa Thanh

doi:10.1016/j.ymssp.2018.02.017

Cited by 17 publications

(9 citation statements)

References 49 publications

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“…The capability of the present device to detect angular rate is demonstrated using our developed turntable whose configuration can be found in our recent publication [19], [20]. The turntable whose angular velocity is monitored by an integrated encoder (Tsukasa Electric Ltd) is driven by a direct current motor.…”

Section: Resultsmentioning

confidence: 99%

Study on Point-to-Ring Corona Based Gyroscope

Van¹,

Bui

Tran

et al. 2019

2019 IEEE 32nd International Conference on Micro Electro Mechanical Systems (MEMS)

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We present for the first time a novel gyroscope using circulatory electro-hydrodynamics flow in a confined space. Three point-ring corona actuator is to generate ionic flows in three separated channels and the ionic flows then merge together at a nozzle of the main chamber to create a jet flow. The residual charge of ion winds is removed by a master-ring electrode. By the effect of angular rate, the jet flow handled by a hotwire anemometry is deflected and sensed. Results by both experiment and numerical simulation consistently show good repeatability and stability of the new configuration-based device. Since ion wind is generated by a minimum power, the device does not require any vibrating component, thus the device is robust, low cost and energy consumption.

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Section: Resultsmentioning

confidence: 99%

Study on Point-to-Ring Corona Based Gyroscope

Van¹,

Bui

Tran

et al. 2019

2019 IEEE 32nd International Conference on Micro Electro Mechanical Systems (MEMS)

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“…1a. In fact, the feedback flow which accumulates momentum dramatically amplifies the rectifying effect of the nozzle [41], [42]. Therefore, the velocity of air flow increases and reaches a stably maximum value inside the vortex chamber after several circulations.…”

Section: Mechanism and Design Of Devicementioning

confidence: 99%

Vortex flow generator utilizing synthetic jets by diaphragm vibration

Dau

Dinh

Bui

et al. 2018

International Journal of Mechanical Sciences

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This paper develops a millimeter scale fully packaged device in which a vortex flow of high velocity is generated inside a chamber. Under the actuation by a lead zirconate titanate (PZT) diaphragm, a flow circulates with increasing velocity after each actuating circle to form a vortex in a cavity named as the vortex chamber. At each cycle, the vibration of the PZT diaphragm creates a small net air flow through a rectifying nozzle, generates a synthetic jet which propagates by a gradual circulation toward the vortex chamber and then backward the feedback chamber. The design of such device is firstly conducted by a numerical analysis whose results are considered as the base of our experimental setup. A vortex flow generated in a chamber of the device (named as the votex chamber) was observed by a high-speed camera. The present approach which was illustrated by both the simulation and experiment is potential in various applications related to the inertial sensing, fluidic amplifier and micro/nano particle trapping and mixing.

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“…It is especially suitable for use in the harsh environment on cars, tanks and shells. Since the thermal convective gyroscope uses gas as a jet medium, its sensitivity is limited because gas has a low density [ 4 , 5 , 6 ]. On this basis, some scholars put forward a novel liquid rate gyroscope using electro-conjugate fluid to improve sensitivity, which generates a powerful jet flow under the action of a high DC voltage [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Design, Modeling and Simulation of a Liquid Jet Gyroscope Based on Electrochemical Transducers

et al. 2021

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We propose a novel liquid jet gyroscope based on electrochemical transducers, which uses electrolyte as the jet medium, and two electrochemical transducers placed symmetrically as the velocity measuring unit. The gyroscope includes a fluid pump to generate a jet flow, which flows into the jet chamber. Then, it is diverged into the shunt channels, pumped into reflux channels and merged by a fluid pump. The velocities of shunt flows are measured by two electrochemical transducers. The feasibility of the method was demonstrated in theory, and a 2D finite element model was built to simulate the dynamics of the liquid jet gyroscope. Simulation results confirm the effectiveness of the gyroscope, which has higher sensitivity in the near DC frequency band.

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Fluidic mechanism for dual-axis gyroscope

Cited by 17 publications

References 49 publications

Study on Point-to-Ring Corona Based Gyroscope

Study on Point-to-Ring Corona Based Gyroscope

Vortex flow generator utilizing synthetic jets by diaphragm vibration

Design, Modeling and Simulation of a Liquid Jet Gyroscope Based on Electrochemical Transducers

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