Driving and detection system of vibrating piezoelectric gyroscope at atmospheric pressure for multi-axial inertia sensor

Lee, Byengleul; Paik, Seung-Joon; Chun, Kyunghan; Kim, Bong-Hwan

doi:10.1007/s00542-019-04413-3

Cited by 2 publications

(1 citation statement)

References 27 publications

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“…The echo is detected and displayed o fluorescent screen, so that doctors can understand the internal condition of the hum body. Piezoelectric gyroscopes [62][63][64][65] fabricated from piezoelectric ceramics, illustrated in Figure 4, are attached to the rudder of spacecraft and artificial satellites, and thereby guarantee a stable fixed route. Traditional mechanical gyroscopes, with short life, poor accuracy, and low sensitivity, cannot meet the requirements of modern spacecraft and satellite system.…”

Section: Physical Mechanism and Application Of Piezoelectric Effectmentioning

confidence: 99%

Structural Design and Physical Mechanism of Axial and Radial Sandwich Resonators with Piezoelectric Ceramics: A Review

Wang

Jiang

Thomas

2021

Sensors

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Piezoelectric ceramics are inexpensive functional materials which are widely used in sonar detection, home appliances, meteorological detection, telemetry and environmental protection and other applications. Sensors fabricated from these materials are compact and have fast response characteristics. Their underlying functional methodology is based on the direct piezoelectric effect whereby very small mechanical vibration signals are converted into electrical signals. Piezoelectric resonators are based on the reverse piezoelectric effect and they are widely used for the control of precision instruments and precision machinery, microelectronic components, bioengineering devices and other in applications requiring components to provide precision control of the relevant functional mechanism. In this paper, the structural evolution and design mechanism of sandwich resonators based on piezoelectric materials are reviewed, and the advantages and disadvantages of different structures are compared and analyzed. The goal is to provide a comprehensive reference for the selection, application and promotion of piezoelectric resonators and for future structural innovation and mechanism research relevant to sandwich resonators.

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Section: Physical Mechanism and Application Of Piezoelectric Effectmentioning

confidence: 99%

Structural Design and Physical Mechanism of Axial and Radial Sandwich Resonators with Piezoelectric Ceramics: A Review

Wang

Jiang

Thomas

2021

Sensors

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Design of an interface circuit system for mode-separation MEMS digital gyroscope

Zhang,

Yin,

Chen

et al. 2023

Mod. Phys. Lett. B

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In this paper, a novel digital closed-loop interface circuit system of MEMS vibrating gyroscope is proposed, which includes driving, detection and quadrature circuits. Because of the high sensitivity and precision of the MEMS gyroscope, the interface circuit system is established under the condition of mode separation. The driving circuit of MEMS gyroscope adopts digital automatic gain control (AGC) to realize self-excitation closed-loop control, which makes the gyroscope system simple in structure and good in robustness. First, the working principle of the gyroscope’s sensitive structure is introduced and the system simulation model of the sensitive structure is developed. Second, a [Formula: see text] ADC and DAC with single-bit output are designed and the feasibility of the driving circuit design is verified by the system-level model. Third, the quadrature closed-loop correction circuit is designed to reduce the coupling of the quadrature component to the gyroscope detection circuit. The simulation results show that the quadrature correction loop can effectively reduce the influence of the quadrature coupling on the detection loop of MEMS gyroscope. Finally, the system-level model of the gyroscope is established by SIMULINK, the overall system performance of the gyroscope is analyzed, and the test system of MEMS gyroscope is built by field-programmable gate array (FPGA) and application specific integrated circuit (ASIC). The experiment verifies the feasibility of the digital interface circuit design, and the zero-bias instability of the gyroscope system is 1.0∘/h.

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Driving and detection system of vibrating piezoelectric gyroscope at atmospheric pressure for multi-axial inertia sensor

Cited by 2 publications

References 27 publications

Structural Design and Physical Mechanism of Axial and Radial Sandwich Resonators with Piezoelectric Ceramics: A Review

Structural Design and Physical Mechanism of Axial and Radial Sandwich Resonators with Piezoelectric Ceramics: A Review

Design of an interface circuit system for mode-separation MEMS digital gyroscope

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