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Museum catalogue: Antarctic Collection

 

Gravitometer

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Accession no.: Y: 2011/28a-c
Object name: Gravitometer
Title: Gravitometer
Description: A No. 743 Model 121 Worden gravitometer/gravimeter (a) and stand (b) in a metal case (c), made by Texas Instruments Inc. and used in the Antarctic by the British Antarctic Survey. Gravimeters (gravity meters) are used to measure the earth's gravity at a specific location.
Classified name:
SPRI theme science and navigation
Current place name Antarctic regions > British Antarctic Survey
UDC 528.223
Geographic UDC (*72)
Getty AAT
Number of items: 3
Full description:

a: A gravimeter with a cylindrical metal and plastic casing, standing on a triangular plastic base with three adjustable feet. On the top of the instrument is a spirit level, an on-off switch and a dial. There is a label stuck to the upper part of the instrument reading 'DIAL CONSTAN // .2371 (5) // MILLIGALS/DIVISION', and the side of the casing is engraved 'The Master // WORDEN GRAVITY METER // No 743 MODEL 121 // TEXAS INSTRUMENTS // INCORPORATED // HOUSTON TEXAS MADE IN U.S.A. // PATENT NOS. 2,674,887 2,732,718 2,738,676'. Tied around the instrument is a white rope carry handle, secured with black duct tape.

b: A silver-painted circular metal stand with three feet and a circular spirit level in the centre.

c: A cylindrical white-painted metal case with a hinged lid (one hinge) and one metal clasp. There are three metal loops around the side of the case to take a handle. The lid and base are lined with padded blue textile, and there is a wad of yellow foam inside the case. There is a handwritten paper label stuck to the outside reading 'JAMES CLARK ROSS // SIZE 50 x 50 x 30CM // WEIGHT 8KG // CUBE 0.04 CuM // JS988018', and a printed paper label reading 'FRAGILE'.

Dimensions:
  • a: Height: 375mm, diameter: 175mm
  • b: Height: 86mm, diameter: 230mm
  • c: Diameter: 305mm
Associated expedition(s):
  • Used on: British Antarctic Survey 1962- ( - )