Journal ArticleDOI
Self-Balancing Signal Conditioning Circuit for a Novel Noncontact Inductive Displacement Sensor
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TLDR
Error analysis and simulation studies presented here bring out the pitfalls that have to be avoided to obtain an optimal design for linear or angular displacement sensing.Abstract:
A noncontact inductive type displacement sensor is presented here. The sensor is realized with an inductive voltage divider possessing a floating wiper operated by a self-balancing feedback type signal conditioning circuit. The output of the self-balancing signal conditioning circuit is: 1) linear to the displacement of the floating wiper and 2) independent of the coupling capacitance that arises due to the air gap between the inductive element and the floating wiper. Error analysis and simulation studies presented here bring out the pitfalls that have to be avoided to obtain an optimal design for linear or angular displacement sensing. Experimentation on an emulated sensor and results obtained from a prototype angle sensor built and tested establish the efficacy of the proffered technique.read more
Citations
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Journal ArticleDOI
A Linear Position Measurement Scheme for Long-Distance and High-Speed Applications
TL;DR: This article presents a PM linear resolver that generates orthogonal back-EMFs as the sinusoidal and cosine (SIN/COS) signals and the train position can be measured by decoding the PM back- EMF.
Journal ArticleDOI
Assay of Direct Digital Output Floating-Wiper Inductive Displacement Sensor
TL;DR: In this article, a direct digital output non-contact inductive type displacement transducer employing the popular successive approximation register (SAR) method of conversion is presented, where the digital output is proportional to the displacement of the contactless (floating) wiper and is unaffected by the variations in the coupling capacitor that is formed between the Wiper and the inductive element.
Journal ArticleDOI
A Non-Linear Temperature Compensation Model for Improving the Measurement Accuracy of an Inductive Proximity Sensor and Its Application-Specific Integrated Circuit Implementation
TL;DR: This model adopts a non-linear polynomial algorithm rather than the simple linear Look-Up Table (LUT) method, which provides more accurate distance estimation compared to the previous work and achieves real-time and high-accuracy computation within a wide temperature range with low hardware resource consumption.
Proceedings ArticleDOI
Successive approximation type digital converter for floating-wiper inductive displacement sensor
TL;DR: The topology of a successive approximation type digital converter is suitably altered so that a floating-wiper inductive displacement sensor becomes an integral part of the SADC.
Journal ArticleDOI
Influence of structural parameters on the static performance of self-inductive radial displacement sensor
TL;DR: In this paper , the authors analyzed the sensor's working principle and designed some radial sensors with different nominal air gaps and coil turns, and studied the effects of the nominal air gap and coil turn on the sensor coil's output voltage and sensitivity through the finite element simulation and experiments.
References
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Patent
Inductive type displacement transducers
TL;DR: A displacement transducer includes a non-magnetic non-conductive former mounting helical bifilar windings, the position of which is varied for the purpose of measuring displacement.
Proceedings ArticleDOI
Modelling and simulation of sensors for position control for hydraulic mechatronic systems
Andrei Drumea,Paul Svasta +1 more
TL;DR: In this paper, the authors present design, modelling, simulation and implementation of two types of position sensors for hydraulic mechatronic systems - differential inductive type and integrated accelerometer-based.
Proceedings ArticleDOI
A floating wiper inductive voltage divider type displacement transducer
TL;DR: A novel, floating wiper, inductive voltage divider (IVD) type displacement transducer is presented here, which provides an output that is proportional to the displacement (can be linear or angular) of the wiper.