Ultra-Low Power Displacement Sensor

Bertacchini, Alessandro; Lasagni, Marco; Sereni, Gabriele

doi:10.1007/978-3-030-37277-4_29

Cited by 2 publications

(3 citation statements)

References 11 publications

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“…This section describes the operating principle of the realized prototype of the ULP-ECDS. It is based on the same architecture of the one presented in [26], and it is detailed in the next subsections.…”

Section: Methodsmentioning

confidence: 99%

“…Whereas in [26], the main goal was to validate the proper operation of the realized ULP-ECDS, by using a single well-defined target, in this work, as mentioned before, the focus concerns the evaluation of the effects of different targets on the performance of the sensor in terms of power consumption and the shift of operation frequency, sensitivity, and resolution.…”

Section: Methodsmentioning

confidence: 99%

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Effects of the Target on the Performance of an Ultra-Low Power Eddy Current Displacement Sensor for Industrial Applications

2020

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The demand for smart, low-power, and low-cost sensors is rapidly increasing with the proliferation of industry automation. In this context, an Ultra-Low Power Eddy Current Displacement Sensor (ULP-ECDS) targeting common industrial applications and designed to be embedded in wireless Industrial Internet of Things (IIoT) devices is presented. A complete characterization of the realized ULP-ECDS operating with different metallic targets was carried out. The choice of the considered targets in terms of material and thickness was inspired by typical industrial scenarios. The experimental results show that the realized prototype works properly with extremely low supply voltages, allowing for obtaining an ultra-low power consumption, significantly lower than other state-of-the-art solutions. In particular, the proposed sensor reached the best resolution of 2 µm in case of a carbon steel target when operated with a supply voltage of 200 mV and with a power consumption of 150 µW. By accepting a resolution of 12 µm, it is possible to further reduce the power consumption of the sensor to less than 10 µW. The obtained results also demonstrate how the performances of the sensor are strongly dependent on both the target and the demodulation technique used to extract the displacement information. This allowed for defining some practical guidelines that can help the design of effective solutions considering application-specific constraints.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Effects of the Target on the Performance of an Ultra-Low Power Eddy Current Displacement Sensor for Industrial Applications

2020

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“…Much research exists considering the external type displacement sensor. According to the principle, the external displacement sensor can be divided into the optical sensor [1][2][3], hall sensor [4,5], and eddy current sensor [6][7][8]. Optic displacement sensors have the advantages of high accuracy and fine resolution, but they are expensive and sensitive to dust and vibration [9].…”

Section: Introductionmentioning

confidence: 99%

Design and Optimization of a Novel Hydro Cylinder Displacement Sensor

Zhou¹,

Wen²,

Ren³

et al. 2021

Preprint

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In recent years, the coal mine intelligent development process has constantly advanced, putting forward higher requirements for monitoring mining equipment data. Sensor technology suitable for the special underground environment has also been developing. Hydraulic support is a key piece of equipment in fully mechanized coal mining. Monitoring the hydraulic support position and attitude has been an important part of coal mine intelligent development. In the present paper, a new oil cylinder displacement sensor was proposed. The oil cylinder translational motion was transformed into the magnet rotary motion via the motion conversion mechanism. The magnet angle was calculated by utilizing the single-chip microcomputer, and the oil cylinder expansion and contraction were calculated via the filtering algorithm. Results showed that the sensor accuracy could reach 0.5 mm. In recent years, the coal mine intelligent development process has constantly advanced, putting forward higher requirements for monitoring mining equipment data. Sensor technology suitable for the special underground environment has also been developing. Hydraulic support is a key piece of equipment in fully mechanized coal mining. Monitoring the hydraulic support position and attitude has been an important part of coal mine intelligent development. In the present paper, a new oil cylinder displacement sensor was proposed. The oil cylinder translational motion was transformed into the magnet rotary motion via the motion conversion mechanism. The magnet angle was calculated by utilizing the single-chip microcomputer, and the oil cylinder expansion and contraction were calculated via the filtering algorithm. Results showed that the sensor accuracy could reach 0.5 mm.

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Ultra-Low Power Displacement Sensor

Cited by 2 publications

References 11 publications

Effects of the Target on the Performance of an Ultra-Low Power Eddy Current Displacement Sensor for Industrial Applications

Effects of the Target on the Performance of an Ultra-Low Power Eddy Current Displacement Sensor for Industrial Applications

Design and Optimization of a Novel Hydro Cylinder Displacement Sensor

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