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The platinum thermoresistor thermal converter as a high frequency transfer standard
By: Castelli, F.;
1998 / IEEE / 0-7803-4797-8
This item was taken from the IEEE Conference ' The platinum thermoresistor thermal converter as a high frequency transfer standard ' The ""platinum thermoresistor thermal converter"" (PTTC) is illustrated. The PTTC is based on a platinum thermoresistor, integral thermal sensor (TS), heated by a flat strap ""sandwich"" heater resistor (FSSHR), with the following ac-dc transfer error (TE) to frequency (F): TE<2.5 10/sup -4/ ppm to 250 kHz; TE=10/sup -3/ ppm at 270 kHz; and TE=10/sup -2/ ppm at 290 kHz. Therefore, these high accurate results justify the claim that the PTTC can be adopted as a possible high F ac-dc transfer standard converter (ATS). Moreover a prototype of the PTTC in a differential form (PTTCD) to be used as a simultaneous ATS has been designed and constructed and the obtained experimental test results are here presented and critically analyzed.
Thermoresistor Thermal Converter
High Frequency Transfer Standard
Integral Thermal Sensor
Flat Strap Sandwich Heater Resistor
Ac-dc Transfer Error
250 To 290 Khz