Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Laser Based Temperature Measurement of Rotating Disk Using Thermocolor

서모컬러를 이용한 회전 디스크의 레이저 온도 측정

  • Na, Wonhwi (Department of Electrical and Computer Engineering, College of Information and Communication Engineering, Sungkyunkwan Unversity) ;
  • Yoo, JaeChern (Department of Electrical and Computer Engineering, College of Information and Communication Engineering, Sungkyunkwan Unversity)
  • 나원휘 (성균관대학교 정보통신대학 전자전기컴퓨터공학과) ;
  • 유재천 (성균관대학교 정보통신대학 전자전기컴퓨터공학과)
  • Received : 2012.11.19
  • Accepted : 2012.12.10
  • Published : 2013.01.31
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Abstract

In this paper, we proposed a laser-based non-contact temperature measuring method for high speed rotating polycarbonate (PC) disk using transparency change of thermocolor. The thermocolor has abilities to change color and transparency due to a change in temperature. The thermocolor is applied on one side of polyvinylidene fluoride (PVDF) membrane. The thermocolor applied membrane is attached to inside of reaction chamber in disk. An optical system consisted of a laser beam radiator and a laser photometer is installed. Laser is irradiated at the bottom side of disk and the transmitted laser beam is detected by the laser photometer at the opposite side of disk. During the disk is rotating, laser is irradiated and detected simultaneously. The laser photometer senses the transmitted laser power and generates voltage as output. The temperature of disk can be detected during the disk is rotating up to 3000 RPM.

Keywords

References

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