Automated apparatus reveals sources of error not revealed in calibration. Computer-controlled apparatus detects and measures Seebeck inhomogeneities in sheathed thermocouples. Measures thermocouple output voltage as function of position of probe along sharp gradient of temperature. Abnormal variations in voltage-versus-position data indicative of Seebeck inhomogeneities. Prototype for development of standard method and equipment for routine acceptance/rejection testing of sheathed thermocouples in industrial and research laboratories.
Apparatus Tests Thermocouples For Seebeck Inhomogeneity
NASA Tech Briefs ; 19 , 1
1995-01-01
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Englisch
Apparatus Tests Thermocouples for Seebeck Inhomogeneity
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