Photoelectric cell - Instrument's card

	Virtual Museum - Traversi Museum
	Instrument's card

Instrument Nº - Query criteria NOTICE

Print the card

Photoelectric cell

Dating

5 March 1947

It is a device, also called photocell, used for the detection both of the light and of its intensity whose working way is based on the photoelectric effect. The first photoelectric cell was constructed by Elster and Geitel in 1910.

Web page

Photoelectric cell

Cataloghi	Nº	Voce
Inv. 2016	585	Photoelectric cell Provisional numbering!
Inv. 1870	992	Cellula fotoelettrica

Section

Electrodynamics

Window

Conditions

Complete

Working NC

Intact

Diameter	11.0 cm (4.3 in)
Height	17.0 cm (6.7 in)

Materials

Sources

Resti E., Catalogo generale di apparecchi per l'insegnamento della fisica, Ditta Emilio Resti di Franco Brambilla, Pubblicazi, Milano, 1930, pag. 81, fig. 401

The additional indications which integrate the items of the conservation's state have the following meaning: (?) = maybe complete; M = maintenance; P = partial; R = restored; D = used for teaching; NC = not checked; X = impossible to verify.

In order to avoid that instruments' cards without the english description text of the device be directly selected, I added a special filter with which only the complete cards are shown in the menu. Anyhow all the partial english instruments' cards (with instrument's dating, dimensions, state of conservation...) can always be seen even if they haven't the english description text. To read this uncomplete cards is sufficient to click, for example, on an instrument's picture or on the word "View" of the table column called "Card" every time they appear in the other pages of this database.