Advanced viscometric thermometer: Steady and unsteady state temperature measurement in electric or magnetic fields

Seyed-Yagoobi, Jamal
January 1991
Review of Scientific Instruments;Jan1991, Vol. 62 Issue 1, p249
Academic Journal
The viscometric thermometer is one of the few simple and inexpensive methods of temperature measurement in the presence of electric or magnetic fields. This work further improves our previous viscometric thermometer design so it now measures the temperature distributions in both steady and transient states with a response time of a few seconds or less.


Related Articles

  • A compact, high-pressure capillary viscometer. Ripple, Dean // Review of Scientific Instruments;May92, Vol. 63 Issue 5, p3153 

    A high-pressure capillary viscometer is described. Similar to an Ubbelhode viscometer, the instrument is compact, requires a sample of only 1 ml of saturated liquid, and is simple to make and use. The viscometer can readily measure kinematic viscosities as small as 2 × 10[sup -7] m²/s and...

  • High pressure Strokes' viscometry: A new in situ technique for sphere velocity determination. LeBlanc, G.E.; Secco, R.A. // Review of Scientific Instruments;Oct95, Vol. 66 Issue 10, p5015 

    Describes a method that allows real time determination of the velocity of a sphere moving through a liquid high pressure Stokes' viscometry studies. Reliance of electro-detection method on the electrical conductivity contrast between sphere and liquid; Testing of the method on a jadeite melt.

  • Viscometer timer using low-cost electronic stopwatch. Gardner, R. J.; Senanayake, P. C. // Review of Scientific Instruments;Dec1986, Vol. 57 Issue 12, p3129 

    Light pipes and optical level detectors are used to automatically start and stop a low-cost electronic stopwatch which measures the efflux time of a liquid in a glass capillary viscometer. Operator reaction time is eliminated and viscosities of clear, translucent, or opaque liquids can be...

  • Experimental study of the velocity field around a falling needle viscometer. Kim, Insik; Irvine, T. F.; Park, N. A. // Review of Scientific Instruments;Jan1994, Vol. 65 Issue 1, p224 

    Fully developed velocity profiles around the side of a needle falling at terminal velocity in a falling needle viscometer and the flow disturbance region near the ends of the needle were experimentally investigated. A flow visualization technique was used to obtain the main features of the flow...

  • Bimodal terminal velocities using the falling needle viscometer. Thiessen, David B.; Krantz, William B. // Review of Scientific Instruments;Sep92, Vol. 63 Issue 9, p4200 

    The falling needle viscometer is a particularly useful instrument for measuring the shear viscosity when small sample volumes are necessitated. Under some conditions this instrument can exhibit bimodal terminal velocity observations which precludes a straightforward analysis to obtain the...

  • Instrument for the remote determination of viscosity and density in hostile environments. Li, K. K.; Schneider, A.; Abraham, R. L. // Review of Scientific Instruments;Sep92, Vol. 63 Issue 9, p4192 

    A continuous bubble-rise-velocity (BRV) viscometry method was developed for Newtonian fluids which is based upon the remote determination of the rise velocity of a helium bubble. The bubble rise velocity was remotely determined by using a helium-leak detector to measure the rise time of a bubble...

  • Viscometer.  // LC-GC North America;May2006, Vol. 24 Issue 5, p525 

    The article evaluates Wyatt's Viscostar viscometer which is an online chromatographer detector for determining specific and intrinsic viscosities.

  • Pressure-driven capillary viscometer: Fundamental challenges in transient flow viscometry. Digilov, Rafael M. // Review of Scientific Instruments;Dec2011, Vol. 82 Issue 12, p125111 

    We describe an unsteady pressure-driven capillary viscometer, in which the liquid under test is forced through a capillary tube by compressed-air pressure. The principle of operation involves measurement of the driving pressure versus time that decays progressively as the fluid flows and covers...

  • Mistake Proofing the Viscosity Test. McGregor, Robert // R&D Magazine;Aug2013, Vol. 55 Issue 4, p16 

    The article discusses eliminating common errors from the process of viscosity measurement tests. The storing and accessing of programmed tests by qualified users are made possible with the addition of intelligence and memory to standard viscometers. An example of an instrument representing the...


Read the Article


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

Try another library?
Sign out of this library

Other Topics