Platinum Resistance Thermometry

Platinum Resistance Thermometry PDF

Author: John L. Riddle

Publisher:

Published: 1973

Total Pages: 136

ISBN-13:

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The monograph describes the methods and equipment employed at the National Bureau of Standards for calibrating standard platinum resistance thermometers (SPRT) on the International Practical Temperature Scale (IPTS-68).The official text of the scale is clarified and characteristics of the scale are described.Several designs of SPRT's are shown and discussed in the light of the requirements and recommendations on the text of the IPTS-68.Possible sources of error such as those due to the internal and external self-heating effects and the immersion characteristics of SPRT's are described in detail.Precautions and limitations for the mechanical and thermal treatment and for the shipment of SPRT's are indicated, and a guide is given for those desiring the thermometer calibration services of NBS.(Modified author abstract).

Handbook of Temperature Measurement Vol. 2

Handbook of Temperature Measurement Vol. 2 PDF

Author: Robin E. Bentley

Publisher: Springer Science & Business Media

Published: 1998-09-01

Total Pages: 214

ISBN-13: 9789814021104

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Volume 2 of the Handbook of Temperature Measurement, prepared by the CSIRO National Measurement Laboratory, Australia, discusses the operation, calibration and usage of resistance and liquid-in-glass thermometers. Both standard-platinum-resistance thermometers and industrial-resistance thermometers are examined, and details on a variety of resistance-measuring techniques are given. Also included is a final version of the official text of the International Temperature Scale 1990 (ITS-90). The authors of this volume are John J. Connolly and E. Corina Horrigan.

Standard Reference Material 1750

Standard Reference Material 1750 PDF

Author: W... L. Tew

Publisher: Createspace Independent Publishing Platform

Published: 2001

Total Pages: 0

ISBN-13: 9781495924927

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The Standard Platinum Resistance Thermometer (SPRT) is defined by the International Temperature Scale of 1990 (ITS-90) as the interpolating instrument for temperatures between 13.8033 K and 1234.93 K. This SRM concerns the calibration characteristics of a group of 20 capsule-type SPRTs within the range of temperatures between 13.8033 K and 429.7485 K. The platinum wire used for the construction of the resistor elements of this SRM was derived from platinum bar stock with a chemical purity of 99.999 % by weight. Each of the 20 units has been evaluated, certified, and calibrated according to the definitions of the ITS-90. The resistance characteristics of all 20 units have been measured at 11 fixed point temperatures from 4.22 K to 429.7485 K as well as at least 7 other intermediate points. The procedures used in performing the calibrations and the supplemental measurements are documented in this publication. The resulting analysis pertaining to each individual unit, as well as the SRM sample population as a whole, is presented in detail.

Techniques in High-Temperature Resistance Thermometry

Techniques in High-Temperature Resistance Thermometry PDF

Author: N. Bass

Publisher: Forgotten Books

Published: 2017-10-27

Total Pages: 30

ISBN-13: 9781527844605

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Excerpt from Techniques in High-Temperature Resistance Thermometry: Construction of the Nbs-Design High-Temperature Platinum Resistance Thermometer; Toroidal Resistor for High-Temperature Platinum Resistance Thermometers Platinum wire of the highest avail able purity (reference grade) is used for the resistor and leads. The manufacturer claims that the metallic impurities are less than 10 ppm in this grade of plati num and that its alpha coefficient is greater than K'l. The wire is received from the manufacturer in the hard drawn state. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Temperature

Temperature PDF

Author: T. J. Quinn

Publisher: Academic Press

Published: 2013-10-22

Total Pages: 508

ISBN-13: 148325934X

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Temperature, Second Edition gives a comprehensive account of the principles of thermometry over the range 0.5 K to about 3000 K. The book focuses on various topics on the field of thermometry such as the full description of the ITS-90, its practical application and preparation; accounts of total radiation thermometry and acoustic gas thermometry using spherical resonators; and the development of sealed cells for the realization of fixed points. The construction and use of high-temperature platinum resistance thermometers; introduction of the use of gold-platinum thermocouple; and the calibration and practical application of radiation thermometers are discussed as well. Physicists, engineers, researchers, and students will find the book a good reference.

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