Babinet's goniometer - Instrument's card

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Babinet's goniometer

Dating

1844 - 1845

Maker

Jean-Baptiste Soleil (1798-1878)

This device was a reflection goniometer for the measure of the corners formed by two concurrent faces, as for instance those of a prism or of a crystal (in mineralogy context). The piece is signed "Soleil à Paris", while the name is bound to the French physicist Jacques Babinet (1794-1872), who invented the instrument in 1839.

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Babinet's goniometer

Cataloghi	Nº	Voce
Inv. 2016	743	Babinet's goniometer Provisional numbering!
Inv. 1925a	143	Goniometro di Babinet
Inv. 1870	201	Goniometro di Babinet
Inv. 1838	586	Goniometro di Malus perfezionato da Babinet

Section

Optics

Window

Conditions

Complete

Working NC

Intact

Large	27.0 cm (10.6 in)
Width	14.0 cm (5.5 in)
Height	32.0 cm (12.6 in)

Materials

brass, lead, iron, glass, lacquer

Sources

Bouchardat A., Physique élémentaire avec ses principales applications, Germer Baillière, Paris, 1851, pag. 82, fig. 42
Gelcich G., Ottica, Hoepli, Milano, 1895, pag. 100, fig. 52
Giordano G., Trattato elementare di fisica sperimentale e di fisica terrestre, Stabilimento tipografico di Federico Vitale, Napoli, 1862, Vol. 2, pag. 302, fig. 272
Murani O., Trattato elementare di fisica compilato ad uso dei licei e degli istituti tecnici, Heopli, Milano, 1906, Vol. 2, pag. 88, fig. 76

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.