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Author: John L. Riddle
Publisher:
ISBN:
Category : Temperature measurements
Languages : en
Pages : 136
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Book Description
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).
Author: John L. Riddle
Publisher:
ISBN:
Category : Temperature measurements
Languages : en
Pages : 136
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Book Description
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).
Author: B. W. Mangum
Publisher:
ISBN:
Category : Resistance thermometers
Languages : en
Pages : 372
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Book Description
Author: John J. Connolly
Publisher:
ISBN: 9780975681008
Category : Resistance thermometers
Languages : en
Pages : 124
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Book Description
Author: Robert Joseph Corruccini
Publisher:
ISBN:
Category : Temperature measuring instruments
Languages : en
Pages : 16
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Book Description
Author: Robin E. Bentley
Publisher: Springer Science & Business Media
ISBN: 9789814021104
Category : Science
Languages : en
Pages : 214
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Book Description
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.
Author: N. Bass
Publisher: Forgotten Books
ISBN: 9781527844605
Category :
Languages : en
Pages : 30
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Book Description
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.
Author: International Electrotechnical Commission
Publisher:
ISBN: 9782831898490
Category : Platinum
Languages : en
Pages : 41
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Book Description
Author: John L. Riddle
Publisher:
ISBN:
Category :
Languages : en
Pages : 126
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Book Description
Author: W... L. Tew
Publisher: Createspace Independent Publishing Platform
ISBN: 9781495924927
Category :
Languages : en
Pages : 0
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Book Description
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.
Author: National Research Council of Canada. Division of Building Research
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
