Publication

A miniaturised displacement sensor for deep hole measurement (1999)

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

    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.

      • Date: 01-10-1999
      • Journal: Journal of Precision Engineering of American Society
      • Volume: 23
      • Issue: 4
      • Pages: 236-242
      • Publisher: Elsevier
      • Publication type: Article
      • Bibliographic status: Published

      Keywords: Miniaturised sensor; Deep hole measurement; Frequency output; Chip coils; Eddy current sensor

      Staff

      Professor Gui Yun Tian
      Professor of Sensor Technologies