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A miniaturised displacement sensor for deep hole measurement

Lookup NU author(s): Professor Gui Yun TianORCiD

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Abstract

A miniaturised displacement senor for deep hole measurement is reported in this paper. By exploiting the induced eddy current effects detected by chip coils, the sensor generates a ’digital’ signal. The sensor chip coil can be manufactured by the similar processes to those used for manufacturing a printed circuit board (PCB) which allows them to be miniaturised. The paper elaborates on the construction and mechanism by which the displacement is directly transferred to a frequency output. It also reports on the transducer, which uses two contact probes for transmitting the displacement to a noncontact sensing element. Experimental results demonstrate the stability, linearity, measurement range and accuracy of the sensor system.

Publication metadata

Author(s): Tian GY; Baines RW; Zhao ZX

Publication type: Article

Publication status: Published

Journal: Journal of Precision Engineering of American Society

Year: 1999

Volume: 23

Issue: 4

Pages: 236-242

Print publication date: 01/10/1999

ISSN (print): 0141-6359

ISSN (electronic): 1873-2372

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/S0141-6359(99)00014-8

DOI: 10.1016/S0141-6359(99)00014-8

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