TITLE

Time-dependent resistance relaxation in carbon and RuO2 based thermometers

AUTHOR(S)
Skrbek, L.; Stehno, J.; Šebek, J.
PUB. DATE
December 1994
SOURCE
Review of Scientific Instruments;Dec1994, Vol. 65 Issue 12, p3804
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The long-term time-dependent relaxation of the electrical resistance in several carbon and RuO[sub 2] based temperature sensors at helium temperatures was investigated. The relative change of the resistance at fixed low temperature, measured immediately after sufficiently rapid cooldown has been found to be always logarithmic with time. In the helium temperature range, the spurious temperature drift associated with this effect for Allen-Bradley and Matsushita carbon radio resistors and for Philips RuO[sub 2] based thick film sensors reaches about 1 mK per time decade, while for Rivac carbon film sensors it is an order of magnitude higher. The theoretical model explaining this relaxation based on the variable range hopping conductivity mechanism and the standard levels AHV theory of glasses at low temperatures was developed.
ACCESSION #
9782308

 

Related Articles

  • If It's Not Broken...Replace It Anyway.  // Current Health 1;Nov2002, Vol. 26 Issue 3, p2 

    Discusses the advantage of replacing mercury thermometer with a digital one.

  • Mercury takes fall in Boston. McMullen, Cheryl A. // Waste News;11/27/2000, Vol. 6 Issue 27, p3 

    Reports on the efforts to phase out the sale of mercury thermometers in Boston, Massachusetts. Threat of the thermometer to the environment and human health; Companies that committed to stop the sale of mercury thermometers.

  • Performance of a precise infrared shadow sensor thermometer. Shuhua Fan; Shuchao Wu; Jun Luo // Review of Scientific Instruments;Aug1997, Vol. 68 Issue 8, p3079 

    Presents the construction and performance of a type of infrared shadow sensor thermometer. Principle of operation; Components and electronic circuitry; Resolution of temperature changes; Sensitivity of the instrument.

  • Which Thermometer For Baby Is Most Accurate?  // Child Health Alert;Apr2001, Vol. 19, p3 

    Focuses on a study which compared different types of thermometers tested among infants by doctors at Children's Hospital in Boston, Massachusetts.

  • EXTEREME ANIMALS! Entin, Carli // Scholastic DynaMath;Feb2007, Vol. 25 Issue 5, p8 

    A quiz on how to read thermometers is presented.

  • A Cool Tool.  // American Vegetable Grower;May2010, Vol. 58 Issue 5, p7 

    The article describes the features and capabilities of digital thermometers.

  • Properties of industrial-grade platinum–cobalt resistance thermometers between 1 and 27 K. Sakurai, H.; Besley, L. M. // Review of Scientific Instruments;Jun85, Vol. 56 Issue 6, p1232 

    The stability at 20 K of five industrial-type platinum–cobalt resistance thermometers on thermal cycling has been studied together with their resistance-temperature characteristics between 1 and 27 K and their self-heating. The stability at 20 K on cycling between room temperature and 20...

  • Infrared Tympanic Thermometers are Unreliable.  // Modern Medicine;Oct98, Vol. 66 Issue 10, p13 

    Discusses the abstract of the article `Unreliability of the infrared tympanic thermometer in clinical practice: A comparative study with oral mercury and oral electronic thermometers,' by J.G. Modell, C.R. Katholi et al, published in the July 1998 issue of the `South Medical Journal' periodical.

  • Enigma No. 1526. Walker, Bob // New Scientist;1/3/2009, Vol. 200 Issue 2688, p17 

    A quiz concerning the accuracy of the digital thermometers is presented.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics