| Specification
The Sunshine Recorder is an instrument is use for accurately measuring the duration of right sunshine at a place. There are various type of an models of sunshine recorder available but the campboll Strokes Pattern which used for the focused heat radiation from the sun a trace on the chart is preferred and widely used. There are three types of camp ball strokes patterns of sunshine recorders mainly used in tropical. Temperate and pollar latitude but tropical pattern of sunshine recorder as drawn up by the Indian meteorological Department is extensively used in India which generally confirm to IS Specification: 7243-1974.
DESCRIPTION :
The sunshine recorder consists of a glass sphere mounted concentrically in a section of a Spherical bowl the diameter of which is such that when the instruments is exposed to the sun’s rays, they are focused sharply or a card held in greeves in the bowl to take cares suitable for different season of the years. The instrument is mounted on a heavy base made of marble or similar stone the sphere is held in position in side a sphere supported by sphere center and sphere axis, the sphere support with glass sphere and bowl can be tilted, adjusted and clamped at such an angle as the latitude of the station. The sharply focused sun’s rays burn a trace on the card which has a time scales printed on it. The length of the burn indicates the period of bright sunshine during the day.
SPECIFICATION:
Generally confirming to IS : 7243-1974
Focal length : 74.9 ± 0.25 mm
Diameter of Sedium Light : 1.512 mm
Range : 74.4 to 75.4 mm
Dimensions : 24 x 19x 47 cms
Latitudes : 50 to 400
This Sun Shine Recorder is manufactured as per IS : 7243 : 1974. Basic Main Components are bowls which are manufactured from Bronze as per I.S.: 306 : 1968 and are precisely machined and assembled and air bubble free glass having good surface finish. The instrument is always supplied with one-year recording graph and standard stenciled curve for Comparison. |
