Polygraph, United Kingdom, 1960-1970

Made:
1960-1970 in United States
maker:
Grass Instrument Company

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Polygraph, model 5D, by Grass Instrument Co., American, 1960-1970. Detail view of instruments and reader.
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Polygraph, model 5D, by Grass Instrument Co., American, 1960-1970. Full view, graduated white background.
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Polygraph, model 5D, Grass Instrument Company, United States, 1960-1970.

Polygraphs are popularly known as ‘lie detectors’, but this was not their intended function. This polygraph recorded important information about a hospital patient which included blood pressure, temperature, heart rate and oxygen levels. It was made by Grass and Co. Machines like this can diagnose an illness, or monitor a patient’s condition during an operation. The polygraph records this information simultaneously. It saves medical professionals regularly checking the various life signs.

Details

Category:
Laboratory Medicine
Object Number:
1988-199 Pt1
type:
polygraph

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