A Non-contact Inductive Position Sensor For Use In Micro Machines

Zmood, R. B.; Zhang, Y.C.; Yu, Pei Lin

doi:10.1109/sensor.1995.717317

Cited by 11 publications

(3 citation statements)

References 2 publications

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“…Industrial sensors for measuring linear and angular positions are widely known [1]- [12]. They have to meet certain criteria such as reliability, small size, wide temperature range, insensitivity to moisture, dust and mechanical offsets and long life.…”

Section: Introductionmentioning

confidence: 99%

“…Further analysis of the signals picked up by the receiver coils in terms of phase and amplitude determine the position of the target. In addition one advantage of this type of sensor compared to current designs [1]- [12] is that multiple targets can be detected by using different transmit frequencies. Furthermore, the sensor is sensitive only to the target's movement in the measurement direction.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Introductionmentioning

confidence: 99%

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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“…In the development of position-measurement systems to be used in micro-magnetic bearings for micro-machines it has been proposed that inductive sensors utilizing eddy-current effects be used to reduce the effects of scaling laws on their operation [1]. To minimize the influence of parasitic capacitances on the performance of these inductive sensors when operating at high frequencies it has been proposed that wide-band trans-impedance amplifiers (termed currentvoltage converters) be used as input amplifiers for the signal conditioners for these position-measurement systems.…”

Section: Introductionmentioning

confidence: 99%

Weakly invertible elements in anisotropic weighted spaces of holomorphic functions in a polydisc

Shamoyan¹

2002

Sb. Math.

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In this paper we investigate trans-impedance amplifiers which can be used to minimize the influence of stray capacitances on the operation of signal conditioners used for instrumentation applications such as inductive microsensors for micromachines. The effect of stray capacitances can be minimized when using this type of amplifier by ensuring that its input impedance is small. A technique for realizing very low input impedances over a wide bandwidth for these amplifiers is studied both analytically and experimentally for transistors having a wide range of gain-bandwidth products f T . In addition an improved circuit configuration which further reduces the amplifier's input impedance at high frequencies is investigated by computer simulation.

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