<i>RLC</i> Parameters Measurement and Fusion for High-Sensitivity Inductive Sensors

Liu, D.; Zhang, Hong; Xiao, Xiaoting; Ma, Qiuping; Li, Haoran; Tian, Gui Yun; Gao, Bin; Wu, Jianbo

doi:10.1109/tim.2022.3178493

Cited by 4 publications

(1 citation statement)

References 28 publications

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“…The impedance Z 1 of coil 1 and the impedance Z 2 of coil 2 in Figure 5 can be calculated using the following [ 17 , 18 ]

…”

Section: Structure and Operating Principle Of A Dual-coil Inductive D...mentioning

confidence: 99%

Effect of the Coil Excitation Method on the Performance of a Dual-Coil Inductive Displacement Transducer

et al. 2023

Sensors

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A dual-coil inductive displacement transducer is a non-contact type measuring element for measuring displacement and is widely used in large power equipment systems such as construction machinery and agricultural equipment. However, the effect of the coil excitation method on the performance of dual-coil inductive displacement sensors has not been studied. This paper investigates the impact of different coil excitation methods on the operating performance of displacement transducers. The working principle, electromagnetic characteristics, and electrical characteristics were analyzed by building a mathematical model. A transducer measurement device was used to determine the relationship between core displacement and coil inductance. Three coil excitation methods were proposed, and the effects of the three coil excitation methods on the amplitude variation, phase shift, linearity, and sensitivity of the output signal were studied by simulation based on the AD630 chip as the core of the conditioning circuit. Finally, the study’s feasibility was demonstrated by comparing the experiment to the simulation. The results show that, under the uniform magnetic field strength distribution in the coil, the coil voltage variation is proportional to the inductive core displacement. The amplitude variation is the largest for the dual-coil series three-wire (DCSTW) and is the same for the dual-coil series four-wire (DCSFW) and dual-coil parallel differential (DCPD). DCSFW has an enormous phase shift. DCSTW has the best linearity. The research in this paper provides a theoretical basis for selecting a suitable coil excitation, which is conducive to further improving the operating performance of dual-coil inductive displacement transducers.

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“…The impedance Z 1 of coil 1 and the impedance Z 2 of coil 2 in Figure 5 can be calculated using the following [ 17 , 18 ]

…”

Section: Structure and Operating Principle Of A Dual-coil Inductive D...mentioning

confidence: 99%

Effect of the Coil Excitation Method on the Performance of a Dual-Coil Inductive Displacement Transducer

et al. 2023

Sensors

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Frequency Sensitivity Analysis of Coil-IDE Resonance Topology Circuit and Its Humidity Sensor Applications

Liu

Chen

et al. 2023

IEEE Sensors J.

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Preliminary Study on Humidity and Gap Sensing Abilities of Planar Coil Made of SnO₂

Wang

Yang

2023

IEEE Sensors J.

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RLC Parameters Measurement and Fusion for High-Sensitivity Inductive Sensors

Cited by 4 publications

References 28 publications

Effect of the Coil Excitation Method on the Performance of a Dual-Coil Inductive Displacement Transducer

Effect of the Coil Excitation Method on the Performance of a Dual-Coil Inductive Displacement Transducer

Frequency Sensitivity Analysis of Coil-IDE Resonance Topology Circuit and Its Humidity Sensor Applications

Preliminary Study on Humidity and Gap Sensing Abilities of Planar Coil Made of SnO₂

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RLC Parameters Measurement and Fusion for High-Sensitivity Inductive Sensors

Cited by 4 publications

References 28 publications

Effect of the Coil Excitation Method on the Performance of a Dual-Coil Inductive Displacement Transducer

Effect of the Coil Excitation Method on the Performance of a Dual-Coil Inductive Displacement Transducer

Frequency Sensitivity Analysis of Coil-IDE Resonance Topology Circuit and Its Humidity Sensor Applications

Preliminary Study on Humidity and Gap Sensing Abilities of Planar Coil Made of SnO2

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Preliminary Study on Humidity and Gap Sensing Abilities of Planar Coil Made of SnO₂