resistance thermometer


Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia, Wikipedia.
Related to resistance thermometer: thermocouple, Platinum resistance thermometer

thermometer

 [ther-mom´ĕ-ter]
an instrument for determining temperatures, in principle making use of a substance (such as alcohol or mercury) with a physical property that varies with temperature and is susceptible of measurement on some defined scale.
Temperatures on Celsius and Fahrenheit thermometers related to temperature ranges. From Elkin et al., 2000.
axilla thermometer a clinical thermometer that is placed in the axilla.
Celsius thermometer one that uses the Celsius scale.
centigrade thermometer one having the interval between two established reference points divided into 100 equal units, such as the Celsius thermometer.
clinical thermometer one used to determine the temperature of the human body.
electronic thermometer a clinical thermometer that uses a sensor based on thermistors, solid-state electronic devices whose electrical characteristics change with temperature. The reading is recorded within seconds, some having a red light or other device to indicate when maximum temperature is reached. Available models include hand-held, desk-top, and wall-mounted units, all having probes that are inserted orally or rectally.
Fahrenheit thermometer one that uses the Fahrenheit scale.
Kelvin thermometer one that uses the Kelvin scale.
oral thermometer a clinical thermometer whose mercury containing bulb is placed under the tongue.
recording thermometer a temperature-sensitive instrument by which the temperature to which it is exposed is continuously recorded.
rectal thermometer a clinical thermometer that is inserted in the rectum.
resistance thermometer one that uses the electric resistance of metals (thermocouple) to determine temperature.
self-registering thermometer
2. one that registers the maximum or minimum temperature attained in the measurement.
tympanic thermometer an electronic clinical thermometer that gives a digital reading in less than two seconds. Second-generation tympanic thermometers work by monitoring the temperature when the ear opening is sealed.

re·sis·tance ther·mom·e·ter

a device measuring temperature by the change of the electrical resistance of a metal wire.

re·sis·tance ther·mom·e·ter

(rĕ-zis'tăns thĕr-mom'ĕ-tĕr)
A device that measures temperature by changes in the electrical resistance of a metal wire.
References in periodicals archive ?
Table 3 Capsule standard platinum resistance thermometer ITS-90 calibrations.
Similarly, notebooks concerning calibrations of thermocouples date to 1909 and work on platinum resistance thermometers dates back to 1907.
The ITS-90 is defined in terms of 17 fixed points; vapor pressure/temperature relations of equilibrium-hydrogen (e-[H.sub.2]) [He.sup.4], and [He.sup.3]; [He.sup.4] or [He.sup.3] constant-volume gas thermometers (CVGTs); standard platinum resistance thermometers (SPRTs); and radiation thermometers.
During this time, the temperature is monitored with one of the resistance thermometers. The size of the heat increments is typically 1/12 the heat-of-fusion.
In practice, the three fixed-points are realized in the copper block first, and then the readings of the resistance thermometers are used to set the block temperature to the fixed-point temperatures to calibrate the gas thermometer.
The LTRF was designed to calibrate in-house "reference-standard" resistance thermometers consisting of selected CSPRTs and RIRTs for NIST only.
Significant experimental contributions by NBS began with the work of Hoge and Brickwedde (29), who calibrated an ensemble of resistance thermometers against a gas thermometer to establish a scale (known as the NBS-39 Scale) for the calibration of thermometers from 14K to 83K.
The current NIST calibration capabilities in the cryogenic range cover most types of cryogenic resistance thermometers, including all types of capsule SPRTs for temperatures from 13.8 K and higher and RIRTs over temperatures between 0.65 K to 83.8 K.
Resistance thermometers made of rhodium with 0.5 % iron, known as RIRTs, were first developed by Rusby (95) in 1975 and are now available commercially.
Industrial platinum resistance thermometers (IPRTs) and thermistors
The uncertainty budget for calibration of platinum resistance thermometers (PRTs) at the TPW is presented in Table 7.

Full browser ?