Description: The simultaneous measurement of length and transit time of a specimen under pressure was used to develop a new way of determining absolute high pressure. The mercury freezing point at 0 deg C was deterinined with this new method at 7571.2 plus or minus 1.6 bars. Accurate high-pressure calibration of secondary pressure gages such as manganin gages is possible with this method. The maximum deviation from linearity of the present gage studied is 11.6 plus or minus 1 bars between atmospheric pressure and the mercury freezing point at 0 deg C. (auth)
Date: January 1, 1973
Creator: Ruoff, A.L.; Lincoln, R.C. & Chen, Y.C.
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Partner: UNT Libraries Government Documents Department