New magneto-inductive sensing principle and its implementation in sensors for industrial applications

Jagiella, M.; Fericean, Sorin; Droxler, R.; Dorneich, Albert

doi:10.1109/icsens.2004.1426347

Cited by 20 publications

(17 citation statements)

References 1 publication

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“…They reach measurement ranges upto 55 mm with a linearity error less than +3% and a resolution less than 0.05% [12]. Other contactless position sensors based on the effect of local magnetic saturation with a different assembly can reach even measurement ranges upto 160 mm with a linearity error less than +1% and resolution of 0.1% [7].…”

Section: Resultsmentioning

confidence: 99%

“…Upto now, only few sensors are constructed using the principle of local magnetic saturation [6,7]. Our project partner Micro-Epsilon provided a prototype of the sensor based on this effect, but with a novel assembly.…”

Section: Aimmentioning

confidence: 99%

“…The presented position sensor based on a new operating principle fulfils these requirements. Similar sensor devices are already used, for example to detect the piston position in a pneumatic cylinder or measuring the translational displacement of a machine part [7].…”

Section: Introductionmentioning

confidence: 99%

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Design of a position sensor using finite-element analysis based on the effect of local magnetic saturation

Weissinger

Oswald

Herzog

2012

IET Sci. Meas. Technol.

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In this study, the design of a novel position sensor using finite-element analysis (FEA) based on the effect of local magnetic saturation has been discussed. This sensor is a position sensor, which enables distances to be measured with high resolution. The operating principle provides a high-precision linear output signal along with cheap production costs. The main aim of the presented work is to design a feasible finite-element model of the sensor, which is precise enough to represent the physical properties and effects, so that there is no need to build up new prototypes for every step of an optimisation or development. The construction of the sensor is simple but the challenge is the meshing of the sensor element and the transmitter, represented by a permanent magnet, because of the differences in the geometric dimensions. The assembly of the sensor was done by the company Micro-Epsilon. The simulation results of the designed finite-element model were checked against the measurements of the prototype. This comparison between simulation results and measurements showed that the attempt to design a finite-element model was successful with deviations lying only in between 3 and 5%.

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Section: Resultsmentioning

confidence: 99%

Section: Aimmentioning

confidence: 99%

See 1 more Smart Citation

Design of a position sensor using finite-element analysis based on the effect of local magnetic saturation

Weissinger

Oswald

Herzog

2012

IET Sci. Meas. Technol.

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“…They have to meet certain criteria such as reliability, small size, wide temperature range, insensitivity to moisture, dust and mechanical offsets and long life. Contact-less inductive sensors [5] are prime candidates to meet these demanding requirements in particular in harsh environments.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the sensor is sensitive only to the target's movement in the measurement direction. Most of the circuit realizations [5], [7] for this inductive type of sensor have been implemented using discrete solutions. Such solutions include, in addition to passive components, integrated circuits components such as amplifiers, filters, A/D, D/A and microcontrollers.…”

Section: Introductionmentioning

confidence: 99%

A readout system for inductive position sensors

Rahal¹,

Demosthenous²

2007

2007 18th European Conference on Circuit Theory and Design

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The readout electronics for contact-less inductive position sensors are currently based on discrete solutions. To enhance overall system performance, the implementation of the readout electronics into a single ASIC is desirable. This paper discusses the key system blocks of the analog front-end. Two variants of the mixer architecture for the synchronous detection are examined in terms of their ability to reject phase-sensitive offsets. Simulated results using a 0.35-µm CMOS process technology are presented.

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High-resolution turbine blade defect testing with passive magnetic field detection technique

Liu,

Wen,

et al. 2023

AIP Advances

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Non-destructive defect testing with a passive magnetic detection technique is crucial for magnetic materials, which can be exempt from the extra excitation magnetic field or developer replenisher contamination. We demonstrate a novel and high-resolution non-destructive defect testing of a magnetic turbine blade in the earth’s magnetic field using a passive magnetic detection technique and a precisely controlled experimental system. The variation in the turbine blade’s magnetic field, measured by a three-dimensional and sensitive sensor mounted on a translation system, was numerically processed and visually demonstrated according to the experimental data. The element differential method was used for simulation and analysis, and we found that a feasible distance and an optimal signal-to-noise ratio can be reached at a testing distance of h = 1 mm. The magnetic characteristics obtained experimentally are in good agreement with those of the sample defect spots with the best spatial resolution of 0.1 mm. The major sources of systematic errors including dead zones and sensor orthogonality were also briefly discussed along with the possible solutions.

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New magneto-inductive sensing principle and its implementation in sensors for industrial applications

Cited by 20 publications

References 1 publication

Design of a position sensor using finite-element analysis based on the effect of local magnetic saturation

Design of a position sensor using finite-element analysis based on the effect of local magnetic saturation

A readout system for inductive position sensors

High-resolution turbine blade defect testing with passive magnetic field detection technique

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