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Actinograph
UK
/ˈæktɪnəʊɡrɑːf/
US
/ˈæktɪnəˌɡræf/
Translation of "actinograph" into Russian
actinograph
Noun
UK
/ˈæktɪnəʊɡrɑːf/
US
/ˈæktɪnəˌɡræf/
actinograph
actinographs pl
The scientist used an actinograph to measure the intensity of sunlight.
Учёный использовал актинограф для измерения интенсивности солнечного света.
Definitions
actinograph
Noun
UK
/ˈæktɪnəʊɡrɑːf/
US
/ˈæktɪnəˌɡræf/
An instrument that measures and automatically records the actinic (photochemically active) intensity of light, especially sunlight, and is often used to determine correct photographic exposure.
Before setting up his camera, the photographer consulted an actinograph to gauge the proper exposure time.
A chart or record produced by an actinograph that displays variations in the actinic intensity of light over a given period.
The climatologists compared the actinographs from successive weeks to analyse changes in ultraviolet radiation.