The 'Virtual' make Sunshine Recorder is a precision instrument designed specifically for meteorological services to measure and record the duration of sunshine. This device features high-quality bronze bowls manufactured according to IS:306:1968 standards, ensuring durability and reliability. The core of the instrument is a uniform, annealed, air bubble-free spherical glass ball with excellent surface finish, essential for accurately focusing sunlight to register sunshine duration. The recorder includes a semi-circular metal arc housing the glass sphere and a gunmetal-machined spherical bowl with overlapping grooved pairs designed to hold recording cards applicable for various seasons. The arc and bowl assembly are adjustable through a grooved slide mechanism, allowing precise inclination adjustment tailored to the geographical latitude of the installation site. Supported by a T-shaped metal base with leveling screws on a metal sub-base, this sunshine recorder guarantees stable and accurate data acquisition. A marble base model option offers enhanced aesthetics and further stability. The instrument comes complete with a one-year recording graph and a standard stenciled curve for data comparison, aiding meteorologists in consistent sunshine data analysis with an accuracy of approximately ±10%. This product is engineered for professional meteorological environments requiring precise sunshine measurement and data recording.
Key Features
| Features | Description |
|---|---|
| Sphere Material | Well-annealed colorless optical glass, air bubble-free with good surface finish |
| Bowl Material | Bronze manufactured as per IS:306:1968 standard |
| Bowl Design | Gunmetal spherical section with overlapping grooved pairs for seasonal record cards |
| Adjustment Mechanism | Grooved slide mounted arc allows inclination adjustment for geographical latitude |
| Base Types | T-shaped metal base with leveling screws on metal sub-base; marble base model available |
| Accuracy | Approximately ±10% |
| Recording Graph | One-year recording graph supplied with instrument |
| Standard Stenciled Curve | Included for sunshine duration comparison |
| Assembly | Precisely machined and assembled components for reliable performance |
| Usage | Extensively used by meteorological services for sunshine duration measurement |
| Attributes | Description |
|---|---|
| Sphere Diameter | Standardized to fit semi-circular arc assembly |
| Bowl Dimensions | Spherical belt cut designed as per the recorder requirements |
| Material Standards | Bronze - IS:306:1968, Optical Glass - Annealed and optical grade |
| Weight | Varies depending on base model (metal or marble base) |
| Operating Temperature Range | Suitable for outdoor meteorological conditions |
| Graph Compatibility | Compatible with supplied and seasonal record cards |
| Installation Latitude Range | Adjustable for all geographic latitudes |
| Calibration | Pre-calibrated with stenciled curves for ease of use |
| Maintenance | Minimal due to robust construction and quality materials |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
The Sunshine Recorder features a grooved slide mechanism mounted on the metal arc, allowing the inclination of the sphere and bowl to be precisely adjusted according to the installation site's geographical latitude.
The sphere is made from well-annealed, air bubble-free colorless optical glass for precise focusing of sunlight, while the bowls are manufactured from high-quality bronze as per IS:306:1968 standards, ensuring durability and reliability.
Yes, the instrument is supplied with a one-year recording graph and a standard stenciled curve for easy comparison and accurate sunshine duration analysis.
Yes, a marble base model is available which offers enhanced stability and a prestigious appearance suitable for laboratory or permanent outdoor installation.
The recorder provides sunshine duration measurements with an approximate accuracy of ±10%, suitable for professional meteorological applications.
Brand: virtual
Country Of Origin: India
The ‘Virtual’ make Sun-Shine Recorder is manufactured to a proven design and is of the type used extensively by meteorological services. Basic Main Components are bowls which are manufactured from Bronze as per IS:306:1968 and are precisely machined and assembled. The sphere bowl is made uniformed and well annealed 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. The sphere, made of well-annealed colorless optical glass is securely clamped on a semi-circular metal arc by means of two bosses attached precisely across a diameter and located by an adjusting screw onto the ball ended boss. Also mounted on the arc is a bowl of spherical section machined from gunmetal. This bowl has the shape of a belt cut from a hollow sphere and contains three overlapping pairs of grooves in which record cards suitable for different seasons can be inserted and secured by a screw. The metal arc is mounted in a grooved slide to permit the inclination of the sphere and bowl to be adjusted for geographical latitude. The slide is mounted on a T-shaped metal base which is supported on leveling screws on a fixed metal sub-base. Marble base model is also available. Accuracy ± 10% approximate.
