Meteorological Office aneroid barometer Mark I

Made:
1940 in London
Compensated aneroid barometer Mark I, by T. Wheeler, London Compensated aneroid barometer Mark I, by T. Wheeler, London Compensated aneroid barometer Mark I, by T. Wheeler, London Compensated aneroid barometer Mark I, by T. Wheeler, London Compensated aneroid barometer Mark I, by T. Wheeler, London Compensated aneroid barometer Mark I, by T. Wheeler, London Compensated aneroid barometer Mark I, by T. Wheeler, London Compensated aneroid barometer Mark I, by T. Wheeler, London

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Compensated aneroid barometer Mark I, by T. Wheeler, London
Science Museum Group
© The Board of Trustees of the Science Museum

Compensated aneroid barometer Mark I, by T. Wheeler, London
Science Museum Group
© The Board of Trustees of the Science Museum

Compensated aneroid barometer Mark I, by T. Wheeler, London
Science Museum Group
© The Board of Trustees of the Science Museum

Compensated aneroid barometer Mark I, by T. Wheeler, London
Science Museum Group
© The Board of Trustees of the Science Museum

Compensated aneroid barometer Mark I, by T. Wheeler, London
Science Museum Group
© The Board of Trustees of the Science Museum

Compensated aneroid barometer Mark I, by T. Wheeler, London
Science Museum Group
© The Board of Trustees of the Science Museum

Compensated aneroid barometer Mark I, by T. Wheeler, London
Science Museum Group
© The Board of Trustees of the Science Museum

Compensated aneroid barometer Mark I, by T. Wheeler, London
Science Museum Group
© The Board of Trustees of the Science Museum

Aneroid barometer, compensated for temperature, made by T. Wheeler Scientific Instruments Ltd, London, UK, 1940. Meteorological Office no. 11450/50. Scale marked in inches and millibars.

Aneroid barometers measure atmospheric pressure. When the pressure of the atmosphere on the capsule – a hollow component contained inside the case – decreases, a connected spring relaxes and moves an arm connected by levers and springs to the instrument’s pointer. This model was designed to be portable, for use in locations where mercury station barometers were impractical.

Details

Category:
Meteorology
Object Number:
1997-1311
Materials:
brass
Measurements:
overall: 3.4 cm 12.2 cm, .685 kg
type:
aneroid barometer
credit:
Meteorological Office