한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제29권10호
  • /
  • Pages.1096-1100
  • /
  • 2012
  • /
  • 1225-9071(pISSN)
  • /
  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지
DOI QR코드

DOI QR Code

위상 검출 방식 레이저 스캐너의 APD bias 전압 특성을 이용한 검출신호세기 제어 방법

Measured Intensity Control Method of a Phase-shift Measurement Based Laser Scanner by using APD Bias Voltage Characteristic

  • Jang, Jun-Hwan (School of Mechatronics, Gwangju Institute of Science and Technology) ;
  • Yoon, Hee-Sun (Advanced Institute of Technology, Samsung Electronics) ;
  • Hwang, Sung-Ui (School of Mechatronics, Gwangju Institute of Science and Technology) ;
  • Park, Kyi-Hwan (School of Mechatronics, Gwangju Institute of Science and Technology)
  • 투고 : 2011.09.06
  • 심사 : 2012.07.09
  • 발행 : 2012.10.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In the phase-shift measurement method, the distance light travels can be obtained based on the phase difference between the reference signal and the measured signal. When the object having various colors is measured, the intensity of the measured signal much varies even at the same distance, and it causes different phase delay due to wide dynamic range input to a signal processing circuit. In this work, an measured intensity control method is proposed to solve this phase delay problem.

키워드

참고문헌

  1. Amann, M., Bosch, T., Lescure, M., Myllyla, R., and Rioux, M., "Laser ranging: a critical review of usual techniques for distance measurement," Opt. Eng., Vol. 40, No. 1, pp. 10-19, 2001. https://doi.org/10.1117/1.1330700
  2. Journet, B. and Poujouly, S., "High-resolution laser rangefinder based on a phase-shift measurement method," Proc. of SPIE, Vol. 3520, pp. 123-132, 1998.
  3. Schmackers, J., Velten, J., and Glasmachers, A., "Laser phase shift distance meter for vision based driver assistance systems," IEEE International Conference on Imaging Systems and Techniques (IST), pp. 220-224, 2010.
  4. Kang, S., Choi, H., Yoon, H., and Park, K., "Automatic gain control for the uniform amplitude of interferent signal in a Laser Doppler Vibrometer," ICCAS, 2006.
  5. Jang, J., Yoon, H., Hwang, S., and Park, K., "Intensity control of time of flight lidar to eliminate the distance errors in color variation," Proc. of KSPE Spring Conference, pp. 1049-1050, 2011.
  6. Yoon, H. and Park, K., "Development of a laser range finder using the phase difference method," Proc. of SPIE, Vol. 6049, 2005.
  7. Yoon, H., Kang, S., Song, H., and Park, K., "A multiple phase demodulation method for improvement of resolution of the laser scanner," Proc. of KSPE Spring Conference, pp. 511-512, 2009.
  8. HAMAMATSU, "Si APD S2381 to S2385, S5139, S8611, S3884, S4315 series," 2006.