A transmissometer is an instrument for measuring the extinction coefficient of the atmosphere, and for the determination of visual range. It operates by sending a narrow, collimated beam of energy (usually a laser) through the propagation medium. A narrow field of view receiver at the designated measurement distance determines how much energy is a...
Found on
http://en.wikipedia.org/wiki/Transmissometer
instrument for measuring transmission of light through a fluid
Found on
http://phrontistery.info/t.html
transmissometer 1. An instrument for measuring the transmission of light through a fluid. 2. An electronic instrument system that provides a continuous record of the atmospheric transmission between two fixed points.
Found on
http://www.wordinfo.info/words/index/info/view_unit/1302/41
No exact match found.
