Optical sensor for opaque and non-opaque materials
作者： Carljon Mercier , Zack A. Shana
DOI:
关键词:
摘要: A sensor is capable of detecting clear or opaque materials. The can be disposed around a tube which carries material such as liquid. utilizes thin beam light source and wide area photo detector. window comparator determines the presence absence
lens.org 参考文章(22)
Bruce J. Oberhardt, Donald F. Kopelman, Non-invasive method and apparatus for instantaneous flow measurement of a segmented fluid stream ,(1977)
Ronald W. Evans, Mark E. Miller, Apparatus for metering liquid flow ,(1993)
Yoshimitsu Morita, Bunichiro Morita, Sensing device for reflective clear material using infrared LED ,(1996)
Robert F Akers, Manometer level detector ,(1974)
Yukio Nakano, Method of and an apparatus for measuring a concentration of a fluid ,(1993)
Erich L Gibbs, Photoelectric liquid level sensor using baffle ,(1968)
Charles S. Schmukler, Georges A. Buon, Method and apparatus for determining the degree of purity of a liquid ,(1986)
Peter T. Randtke, Robert E. Fletcher, Hans-Juergen Graf, Adrian Sandu, Richard E. Howard, Bruce A. Lipisko, John C. Schumacher, Chemical refill system ,(1986)
Harumi C, Xu C, O Kyoto Dai-Ichi Kagaku Co. Ltd. Kubo, O Kyoto Dai-Ichi Kagaku Co. Ltd. Kexin, O Kyoto Dai-Ichi Kagaku Co Ltd Uenoyama, Hiroko C, Method of and apparatus for measuring absorbance, component concentration or specific gravity of liquid sample ,(1995)