Shelfmark

csi.925

Maker

Cambridge Instrument Co. Ltd.

Subjects

Galvanometer--Design and construction; Electric measurements; Potentiometer; Bridge circuits; Reflection--Optics; Rulers (Instruments); Lamps

Title

Cambridge short period galvanometer; and Cambridge lamp and scale outfit

Description

This instrument was designed primarily as a null indicator for precision bridges and Vernier potentiometers, but also for use as a deflectional instrument in applications where rapid changes need to be observed accurately.
A fairly detailed account in paragraph form covers these topics:-
Set-up and use of the instrument;
Components and construction;
Suitable accessories;
Specifications:-
Short Period Galvanometer Specifications: Cat. No., Coil
resistance, Sensitivity in mm./A at 1 metre, Period (undamped)
in seconds, External resistance for critical damping, Net
weight, Overall height, Diam. of base, Diam. of tower,
The Lamp and Scale Outfit is intended for use with the Short Period galvanometer and other reflecting galvanometers: it comprises a lamp attached to a stand at the top of which is mounted a scale.
Iinformation is given in paragraph form, covering these topics:
The lantern: how to fit it, how it works;
The scale: its mounting, and operation;
Transformers;
The stand, and alternative fittings;
Specifications:
Description and Cat. No., Overall length of scale, Diameter of
base, Max. height, and Net weight of each model: one for
mains operation (41903), the other for use with a battery
(41901)

Earliest Date

Latest Date

Pages

2

Address

13, Grosvenor Place, London, S.W.1; Works: London & Cambridge

Other Makers

Cat no

List 275/1

Contents List

Hardback

Prices

Index

Illustrations

Yes

General Ref