Study on Design Optimization of a Capacitive Tilt Angle Sensor

Thuy, Ha Tran Thi; Dac, Hai Nguyen; Quoc, Tuan Vu; Quoc, Thinh Pham; Ngoc, An Nguyen; Duc, Trinh Chu; Bui, Tung Thanh

doi:10.1080/03772063.2019.1649214

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…Such devices are not contact sensors generating discrete signals, but rather feature analog outputs based on changes of electric parameters of the sensor: mostly resistance or capacity [24]. For instance, resistive sensors are presented in [22,25], capacitive sensors in [26,27]; moreover, there is a whole group of sensors employing various kinds of liquids featuring specific magnetic properties, presented e.g., in [28][29][30].…”

Section: Liquid Tilt Sensorsmentioning

confidence: 99%

Electric-Contact Tilt Sensors: A Review

Łuczak

Ekwińska

2021

Sensors

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A review of various kinds of solid tilts sensors, using a free mechanical member for generation of electric-contact (mostly a ball), is presented. Standard and original solutions are discussed. The latest patents are described. A classification of the existing solutions with respect to their sensing principle is proposed. Possible types of the electric/electronic circuits are discussed. Advantages of these sensors are emphasized: mainly optional operation without power supply, resistance to electrostatic discharges, and simplicity of signal processing. Technological details are briefly introduced, along with miniaturization prospects. Additionally, liquid tilt sensors are succinctly characterized. The most typical tilt sensing techniques are concisely compared.

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Section: Liquid Tilt Sensorsmentioning

confidence: 99%

Electric-Contact Tilt Sensors: A Review

Łuczak

Ekwińska

2021

Sensors

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“…The most common type of tilt sensor are liquid inclinometers which exploit the movement of a liquid within a container to indicate inclination. The transduction mechanisms underlying these devices convert physical phenomena such as capacitance, resistance, or fluid dynamics into quantifiable electrical signals [1][2][3][4].In recent years, with the in-depth research and development of Micro-Electro-Mechanical Systems (MEMS) accelerometer, it has been applied to construct multi-dimensional inclination sensing systems, depending on high precision, small volume and anti-electromagnetic disturbance [5,6].…”

Section: Introductionmentioning

confidence: 99%

Research on high-precision calibration device for dual-axis tilt sensor

Zhou,

Wu,

Zheng

et al. 2024

SPIE Future Sensing Technologies 2024

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A dual-axis numerical control rotary table is designed in this article to calibrate a dual-axis tilt sensor. The device comprises a swing axis and a rotating axis, which are used to produce tilts in two perpendicular directions. To achieve precise control of the motion mechanism and enhance positioning accuracy, the time-grating angular displacement sensors have been adopted as the feedback and measurement components in both axes of the device. The experimental results indicate that the error of the swing axis of this calibration device is ±1.5 arcsec, while the error of the rotation axis is ±1.0 arcsec, with a repeatability of less than 0.5 arcsec, which is suitable for the calibration of the majority of dual-axis tilt sensors.

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“…Ha et al presented design optimization and validation of a two-axis cylindrical capacitive tilt angle sensor. The proposed sensor includes five electrodes symmetrically arranged surrounding an air–liquid two–phase cylindrical tube, forming two pairs of electrodes for roll and pitch angle measurement [3]. Chen et al adopted differential capacitance detection and made use of the approximately proportional relationship between the capacitance difference and the rotor deflection angle to construct a new angle sensor [4].…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of a Novel Tilt Sensor Based on the Principle of Variable Reluctance

Zhang

Song

Zhao

et al. 2019

Sensors

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Tilt angle measurement in dynamic systems is problematic because the rotation of the measured platform is coupled with translation. Therefore, when some sensors are applied in dynamic systems, their output signals are often submerged in the noise signals generated by translation. To enhance the ability of tilt sensors to resist translational noise, a dynamic tilt sensor is proposed based on the principle of variable reluctance from the perspective of sensor structure. The eccentric structure of the sensor constructed with a shell, liquid, and internal damping plate was designed according to the principles of mechanics. The characteristic of translational acceleration restraint determined by the sensor structure was established theoretically. In addition, the magnetic circuit of the sensor was analyzed to illustrate the sensor’s working principles. A Clapp oscillator circuit was designed to convert mechanical motion into a measureable electrical signal. A method to determine the sensor’s direction of rotation is proposed. A waveform conversion circuit was designed to convert the sine wave output of the Clapp oscillator to a square wave, and a square-wave frequency measurement circuit was designed based on the C8051 micro-control unit. A translation–rotation experimental hardware platform was constructed. The data acquisition program was designed on a PC platform, and the translation–rotation experiments were conducted with an MTi attitude measurement unit as a reference. The validity of the tilt angle measurements and the effect of the translational acceleration restraint of the sensor were verified by the experimental data. The theoretical results obtained were consistent with the experimental data, verifying the validity of the theoretical analysis and experimental devices employed. A measurement range of −180 to 180° was achieved.

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Study on Design Optimization of a Capacitive Tilt Angle Sensor

Cited by 6 publications

References 8 publications

Electric-Contact Tilt Sensors: A Review

Electric-Contact Tilt Sensors: A Review

Research on high-precision calibration device for dual-axis tilt sensor

Design and Implementation of a Novel Tilt Sensor Based on the Principle of Variable Reluctance

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