Carey-Foster bridge

Carey-Foster bridge with nine copper connecting pieces and mounted on a baseboard

Details

Category:: Electricity and Magnetism

Object Number:: 1974-402

Materials:: copper

type:: bridge

credit:: Algo Instrument Services

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Parts

Moving-coil Galvanometer

Moving-coil galvanometer by H.W. Sullivan

Measurements:: Galvanometer: 320 mm x 260 mm x 260 mm,
Wooden Box: 50 mm x 265 mm x 105 mm,

Object Number:: 1974-402 Pt1

type:: galvanometer

Image ©: The Board of Trustees of the Science Museum

Galvanometer Scale

Galvanometer scale

Measurements:: Scale: 10 mm x 100 mm x 550 mm,
Wooden Stand: 130 mm x 360 mm x 95 mm,
Bakelite Stand: 170 mm x 220 mm x 110 mm,

Object Number:: 1974-402 Pt2

type:: galvanometer

Image ©: The Board of Trustees of the Science Museum

Reversing Key

Reversing key by H.W. Sullivan

Measurements:: overall: 120 mm x 70 mm x 120 mm,

Object Number:: 1974-402 Pt3

type:: reversing key

Image ©: The Board of Trustees of the Science Museum

Ratio Arm Resistors for use with Cary-Foster Bridge

Set of five ratio arm resistors for use with Cary-Foster bridge

Measurements:: Individual Resistor: 110 mm x 80 mm x 80 mm,

Object Number:: 1974-402 Pt4

type:: resistor

Image ©: The Board of Trustees of the Science Museum

Standardising Resistors for use with Carey-Foster Bridge

Set of five standardising resistors for use with Carey-Foster bridge

Measurements:: Individual Resistor: 50 mm x 40 mm x 40 mm,

Object Number:: 1974-402 Pt5

type:: resistor

Carey-Foster Bridge Baseplate

Base Plate in green colour for Carey-Foster bridge, with a measuring scale attached on it.

Measurements:: overall: 600 mm x 920 mm x 160 mm,

Materials:: wood (unidentified) , metal (unknown) , bronze (copper, tin alloy) , glass and plastic (unidentified)

Object Number:: 1974-402 Pt6

type:: base

Components and accessories for Carey-Foster bridge, including 1 rectangular wooden plate with 16 screws attached on it, 1 brass rod with pivoting arm and screw clamp, 1 brass ring magnifier with rod, 1 cylindrical fitting with connector, 1 double-rod clamp fitting, 1 thin brass rod with a attached with a rectangular block, 1 metal hook, 1 coil assembly, 4 U-shaped metal bars, 5 wide U-shaped metal bar, 2 brass metal components and 4 small metal ring.