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Lookup NU author(s): Professor Gui Yun TianORCiD
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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.
Author(s): Tian GY; Baines RW; Zhao ZX
Publication type: Article
Publication status: Published
Journal: Journal of Precision Engineering of American Society
Print publication date: 01/10/1999
ISSN (print): 0141-6359
ISSN (electronic): 1873-2372
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