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


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
- Measurements:
-
overall (1 of 2): 1410 mm x 610 mm x 600 mm,
overall (2 of 2): 15 mm x 142 mm x 15 mm,
- type:
- polygraph and measurement