» Perucca Electrometer with auxiliary field (0211)
Immagini
DESCRIPTION
Exhibit 211 is a Perucca electrometer, an electrostatic instrument employing an auxiliary electric field used to measure potential differences with great precision and sensitivity. It consists of a conducting electric wire suspended vertically and maintained in tension to which is connected a horizontal needle in the form of a V whose vertex is oriented toward the micrometric microscope. The needle is placed between two plates separated by an adjustable distance; the sensitivity of the instrument increases with reduction of this distance. The capacity of the needle with respect to the two plates is about 2 micro-micro farads, the maximum sensitivity is a millivolt and the readout time about 2 secondi.ISCRIZIONI
- Su una etichetta: Carl Leiss/Berlin Steglitz
BIBLIOGRAPHY
- [1] Eligio Perucca - Fisica Generale e Sperimentale - Volume secondo - VII edizione - UTET, Torino - 1960 - pag. 653
Dati Catalografici
| Data di costruzione: | --- |
|---|---|
| Data di carico: | 1927-10-08 |
| Nr. Inventario: | 4276 (Generale dal 1874) |
| Costruttore: | Dr.Carl Leiss |
| Materiale: | metallo, ottone, vetro |
| Dimensioni: | 350 mm x 250 mm x 280 mm |
| Conservazione: | buono |