platinum resistance thermometer


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Related to platinum resistance thermometer: optical pyrometer

platinum resistance thermometer

[′plat·ən·əm ri¦zis·təns thər′mäm·əd·ər]
(engineering)
The basis of the International Practical Temperature Scale of 1968 from 259.35° to 630.74°C; used in industrial thermometers in the range 0 to 650°C; capable of high accuracy because platinum is noncorrosive, ductile, and nonvolatile, and can be obtained in a very pure state. Also known as Callendar's thermometer.
References in periodicals archive ?
Similarly, notebooks concerning calibrations of thermocouples date to 1909 and work on platinum resistance thermometers dates back to 1907.
Also, unique platinum resistance thermometers (PRTs) deliver fast response, providing accurate and precise measurements of sample temperature, which are critical to absolute purity assessment.
The device is designed to operate at temperatures up to 800K with "unprecedented accuracy," thus "improving NIST's calibrations of the standard platinum resistance thermometers widely used in industry."
This comparison, with NIST as a pilot laboratory, had a very large number of participants--15--and required the use of delicate thermometric fixed-point cells and standard platinum resistance thermometers. These factors increased the complexity of the execution and analysis of the comparison.