Torque and rotational speed sensor based on resistance and capacitive grating for rotational shaft of mechanical systems

Chen, Changxin; Ma, Tiehua; Hong, Jung-Pyo; Wu, Yaoyan; Hou, Zhimin; Li, Fan

doi:10.1016/j.ymssp.2020.106737

Cited by 27 publications

(15 citation statements)

References 33 publications

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“…Rotational sensors (gyroscopes) measuring rotational velocity are finding their application in more and more fields. To name only a few, one can mention seismology [ 1 , 2 , 3 ], structural health monitoring (SHM) [ 4 , 5 , 6 ], military [ 7 ], automotive [ 8 ], or in posture control [ 9 , 10 ]. In civil engineering, microelectromechanical system (MEMS) gyroscopes are getting particular attention because of their miniaturization and lower cost compared with the other systems [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Application of Rotation Rate Sensors in Modal and Vibration Analyses of Reinforced Concrete Beams

Bońkowski

Bobra

Zembaty

et al. 2020

Sensors

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The recent rapid development of rotation rate sensor technology opens new opportunities for their application in more and more fields. In this paper, the potential of rotational sensors for the modal analysis of full-scale civil engineering structural elements is experimentally examined. For this purpose, vibrations of two 6-m long beams made of ultra-high performance concrete (UHPC) were measured using microelectromechanical system (MEMS) rotation rate sensors. The beams were excited to vibrations using an impact hammer and a dynamic vibration exciter. The results of the experiment show that by using rotation rate sensors, one can directly obtain derivatives of mode shapes and deflection shapes. These derivatives of mode shapes, often called “rotational modes”, bring more information regarding possible local stiffness variations than the traditional transversal and deflection mode shapes, so their extraction during structural health monitoring is particularly useful. Previously, the rotational modes could only be obtained indirectly (e.g., by central difference approximation). Here, with the application of rotation rate sensors, one can obtain rotational modes and deflection shapes with a higher precision. Furthermore, the average strain rate and dynamic strain were acquired using the rotation rate sensors. The laboratory experiments demonstrated that rotation rate sensors were matured enough to be used in the monitoring and modal analyses of full-scale civil engineering elements (e.g., reinforced concrete beams).

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Section: Introductionmentioning

confidence: 99%

Application of Rotation Rate Sensors in Modal and Vibration Analyses of Reinforced Concrete Beams

Bońkowski

Bobra

Zembaty

et al. 2020

Sensors

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“…Torque is one of the important variable that is measured in order to understand the limits of the product. This knowledge provides an opportunity to characterize the mechanical limits of the product [5]. A driveshaft may be overdesigned or selected improperly according to the type of vehicle.…”

Section: Introductionmentioning

confidence: 99%

External torque sensor design providing wireless and real-time data customized for drivetrain

TARAKÇI

ALDEMİR²,

SOLMAZ³

et al. 2022

International Journal of Automotive Engineering and Technologies

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In this study, a torque sensor design that can be used in both laboratory and field tests simulating road conditions of drivetrain of the vehicles is explained. Mechanical design of the sensor has been carried out via finite element method (FEM). Material of the torque sensor and the relevant heat treatment were determined. Electronic measurement circuit design and its setup have been carried out including amplifier, filter, ADC and data transmission features which are suited for full bridge connection. Verification and calibration tests have been performed with respect to DIN-51309. As a result of the studies, it was determined that the measurement accuracy of the system in the torque range of 250 ÷ 2500 Nm was 0.5%. The effect of noise-induced deviations was found 0.05% for the precision value. Consequently, a verified universal torque sensor has been developed for any drivetrain application under torsional effect with the given specifications. It is hoped that this sensor might become a common feature on any and every drivetrain for advanced monitoring of the drive components.

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“…When they rotate, the magnet causes a variation in the magnetic field that can be detected by a magnetic sensor, and the variation is converted to a square wave signal. In charge variation measurement [ 6 , 7 , 8 , 9 ], electrostatic electrodes are utilized to detect the electrostatic charge on the surface of rotating structures due to relative movement with air. In fiber measurement [ 10 ], an all-fiber rotation speed measurement structure based on dual-beam speckle interference has been proposed.…”

Section: Introductionmentioning

confidence: 99%

Rotational Speed Measurement Based on LC Wireless Sensors

Zhou

Dong

Zhang

et al. 2021

Sensors

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This article presents a method for detecting rotational speed by LC (inductor-capacitor) wireless sensors. The sensing system consists of two identical LC resonant tanks. One is mounted on the rotating part and the other, as a readout circuit, is placed right above the rotating part. When the inductor on the rotating part is coaxially aligned with the readout inductor during rotation, the mutual coupling between them reaches the maximum, resulting in a peak amplitude induced at the readout LC tank. The period of the readout signal corresponds to the rotation speed. ADS (Advanced Design System) software was used to simulate and optimize the sensing system. A synchronous detection circuit was designed. The rotational speed of an electric was measured to validate this method experimentally, and the results indicated that the maximum error of the rotation speed from 16 rps to 41 rps was 0.279 rps.

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Torque and rotational speed sensor based on resistance and capacitive grating for rotational shaft of mechanical systems

Cited by 27 publications

References 33 publications

Application of Rotation Rate Sensors in Modal and Vibration Analyses of Reinforced Concrete Beams

Application of Rotation Rate Sensors in Modal and Vibration Analyses of Reinforced Concrete Beams

External torque sensor design providing wireless and real-time data customized for drivetrain

Rotational Speed Measurement Based on LC Wireless Sensors

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