» Amelio's Pyrheliometer (0418)
Immagini
DESCRIPTION
Exhibit 418 is a pyrheliometer designed by Amerio and used to measure directly the solar radiation (solar constant) as heat per unit time and per unit area. The sensor is a thermopile placed inside a metal container. To guarantee that the sun's rays arrive perpendicularly on the thermopile, there are two holes along the metal container through which a sun's ray must pass. The instrument is supported on a tripod with adjustable screws for leveling. There are two terminals marked "G" for a galvanometer and two marked "R" for a resistance. The principal of operation is the same as the actinometer designed by Linke and Feussner (exhibit 454).ISCRIZIONI
- Inciso sul coperchio: Allocchio Bacchini & C, MILANO
Dati Catalografici
| Data di costruzione: | --- |
|---|---|
| Data di carico: | 1929-01-25 |
| Nr. Inventario: | 4330 (Generale dal 1874) |
| Costruttore: | Allocchio Bacchini |
| Materiale: | metallo, alluminio, vetro |
| Dimensioni: | Lato base triangolare: 18 cm; altezza complessiva (massima): 40 cm; Lunghezza del tubo metallico: 22 cm |
| Conservazione: | buono (Un dei fili di collegamento ai morsetti è staccato.) |