Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1976-10-08
1977-09-27
Swisher, S. Clement
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
G01K 1500
Patent
active
040502899
ABSTRACT:
A method of, and apparatus for, performing comparison calibrations of temperature sensors using a temperature controlled fluidized bath. The bath is operated such that prior to recording the indications of the temperature sensors the supply of fluidizing medium to, and the heat exchange with, the particulate material within the bath are simultaneously terminated. It has been found that when this procedure is adopted considerably better temperature stability is experienced in the bath than when fluidization is maintained throughout the entire period of calibration.
REFERENCES:
patent: 3196251 (1965-07-01), Bruyne
patent: 3350916 (1967-11-01), Staffin
Cooke George Frederick
Fairbairn Geoffrey
Koreki Jan
Winkworth Reginald
Frank William F.
Swisher S. Clement
Techne(Cambridge) Limited
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