A Novel Position Sensor With a Conical Iron Core

Mirzaei, Mehran; Ripka, Pavel; Grim, Václav

doi:10.1109/tim.2020.2999691

Cited by 7 publications

(2 citation statements)

References 30 publications

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“…The working principle of the conditioning circuit is shown in Figure 6 . The conditioning circuit consists of a differential circuit, an operational amplifier circuit, an AD630 chip, and a low-pass filter [ 33 ].…”

Section: Conditioning Circuit Of Double-coil Inductive Displacement T...mentioning

confidence: 99%

Effect of Excitation Signal on Double-Coil Inductive Displacement Transducer

Yang

et al. 2023

Sensors

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A double-coil inductive displacement transducer is a non-contact element for measuring displacement and is widely used in large power equipment systems such as construction machinery and agricultural machinery equipment. The type of coil excitation signal has an impact on the performance of the transducer, but there is little research on this. Therefore, the influence of the coil excitation signal on transducer performance is investigated. The working principle and characteristics of the double-coil inductive displacement transducer are analyzed, and the circuit simulation model of the transducer is established. From the aspects of phase shift, linearity, and sensitivity, the effects of a sine signal, a triangle signal, and a pulse signal on the transducer are compared and analyzed. The results show that the average phase shift, linearity, and sensitivity of the sine signal were 11.53°, 1.61%, and 0.372 V/mm, respectively; the average phase shift, linearity and sensitivity of the triangular signal were 1.38°, 1.56%, and 0.300 V/mm, respectively; and the average phase shift, linearity, and sensitivity of the pulse signal were 0.73°, 1.95%, and 0.621 V/mm, respectively. It can be seen that the phase shift of a triangle signal and a pulse signal is smaller than that of a sine signal, which can result in better signal phase-locked processing. The linearity of the triangle signal is better than the sine signal, and the sensitivity of the pulse signal is better than that of the sine signal.

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Section: Conditioning Circuit Of Double-coil Inductive Displacement T...mentioning

confidence: 99%

Effect of Excitation Signal on Double-Coil Inductive Displacement Transducer

Yang

et al. 2023

Sensors

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“…However, it needs salient secondary magnetic part with high precision punched or machine tooled and NdFeB permanent magnets with less appropriateness for harsh environments. Authors developed and presented lo n g len gt h position sensor for 500 mm working for pneumatic and hydraulic cylinders applications with small size coils and a conical solid iron rod [24].…”

Section: Introductionmentioning

confidence: 99%

A Position Sensor With Novel Configuration of Linear Variable Differential Transformer

2021

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Th is paper presents a position sensor ba s ed o n a novel configuration of linear variable differential transform er. Design and optimization of the position sensor a re pre sent ed using finite element method. The sensor has short air core coi ls and long magnetic armatures. The arrangement direction of the re ctangular excitation coil and two antiserially connected re ctangular pick up coils is perpendicular to the motion direction of the position sensor. The coils are located be t ween two parallel silicon steel laminations a s t he a rm a t ures. Th e position sensor is optimized wi th compromise between minimization of nonlinearity error and maximum s e nsit ivi t y. The main advantage of the proposed position sensor is the small ratio of coils dimensions to the working range. The position sensor is operated for the measurements and calculations at excit at io n fre quencies, 500 Hz and 1000 Hz and 2000 Hz. The maximum nonlinearity error is less than 1.5% for theoretical analysis a nd i t i s le ss than 2% for the measurement results in ±90 mm position range.

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Analysis and design of axial inductive displacement sensor

et al. 2022

Measurement

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A Novel Position Sensor With a Conical Iron Core

Cited by 7 publications

References 30 publications

Effect of Excitation Signal on Double-Coil Inductive Displacement Transducer

Effect of Excitation Signal on Double-Coil Inductive Displacement Transducer

A Position Sensor With Novel Configuration of Linear Variable Differential Transformer

Analysis and design of axial inductive displacement sensor

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