Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1975-10-08
1976-10-19
Segal, Robert
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 5AC, G01R 3308
Patent
active
039873617
ABSTRACT:
An apparatus for rapidly conditioning wax samples and a method for determining the oil content of said samples with a nuclear magnetic resonance analyzer are described. A molten wax sample is collected in a sample holder. The holder is then placed in a temperature equilibration chamber where the molten wax is rapidly cooled at a temperature of about 25-33.degree.F with a cold gas stream from a vortex tube. The sample is then heated to a pre-selected equilibration temperature for a preset time at which point the sample is removed from the equilibration chamber. The sample is placed in the analyzer where the nuclear magnetic resonance value of the sample is determined. The sample is removed from the analyzer and weighed. Finally the oil content of the wax sample is obtained from a previously developed correlation between the oil content and the nuclear magnetic resonance value of various wax samples.
REFERENCES:
patent: 2864995 (1958-12-01), Shoolery
patent: 3153756 (1964-10-01), Williams et al.
patent: 3740641 (1973-06-01), Hwang et al.
Coe Richard H.
Heaton Roy C.
Martin, Jr. James M.
Reper Ronald R.
Segal Robert
Shell Oil Company
Tokar Michael J.
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