Reduction of ambient light effect on ecartometry for a laser-illuminated target

Ozek F., Efe M.

MEASUREMENT SCIENCE AND TECHNOLOGY, cilt.9, sa.9, ss.1638-1640, 1998 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 9 Sayı: 9
  • Basım Tarihi: 1998
  • Doi Numarası: 10.1088/0957-0233/9/9/039
  • Dergi Adı: MEASUREMENT SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1638-1640
  • Anahtar Kelimeler: ecartometry, continuous-wave laser, ambient light reduction
  • Ankara Üniversitesi Adresli: Evet

Özet

A technique for reducing the effect of ambient light on ecartometry for a continuous wave laser-illuminated target is suggested. In the technique, two sets of photoresistors are used in combination. One set replaces the feedback resistors of the four-quadrant laser detector preamplifiers whose resistances are controlled by the other set. All the experiments were carried out indoors with indoor ambient light levels related to those for the outdoors. The suggested circuit is expected to function in ambient light in excess of 10(4) lux.