| 单词 |
transmissometer |
| 释义 |
transmissometer|trɑːnsmɪˈsɒmɪtə(r), træns-, -nz-| [f. L. transmiss-, ppl. stem of transmittere to transmit v. + -ometer.] An instrument for measuring the degree to which light is transmitted through a medium without absorption.
1955Sci. News Let. 24 Sept. 197/1 Other equipment the Weather Bureau plans to purchase includes:... Ceilometers and transmissometers, instruments that tell cloud ceiling height and visibility. 1966McGraw-Hill Encycl. Sci. & Technol. X. 172/1 Reflectometer. This instrument, also called a transmissometer, combines integrating spheres and barrier-layer cells... The transmittance can be measured by placing a sample of the material in the opening between the two spheres. 1975Nature 3 Apr. 414/2 A volumetric concentration [in the sea] on the order of 0·01–1%, obtained from the acoustic data, enabled us to carry out a first-cut check of acoustic and transmissometer readings. |

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