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  • WordNet 3.6
    • n pyrometer a thermometer designed to measure high temperatures
    • ***
Webster's Revised Unabridged Dictionary
    • Pyrometer (Physics) An instrument for measuring degrees of heat above those indicated by the mercurial thermometer.
    • Pyrometer (Physics) An instrument used for measuring the expansion of solid bodies by heat.
    • ***
Century Dictionary and Cyclopedia
    • n pyrometer An instrument, in the form of a simple metallic bar, employed by Muschenbroek, about 1730, for measuring the changes produced in the dimensions of solid bodies by the application of heat. The name is now applied, however, to any instrument the object of which is to measure all gradations of temperature above those that can be indicated by the mercurial thermometer. Wedgwood's pyrometer, the first which came into extensive use, was employed by him for testing the heat of his pottery- and porcelain - kilns, and depended on the property of clay to contract on exposure to heat. Many different modes have been proposed or actually employed for measuring high temperatures: as by contraction, as in Wedgwood's
    • ***
Chambers's Twentieth Century Dictionary
    • n Pyrometer pī-rom′e-tėr an instrument in the form of a metallic bar for measuring the temperature of bodies under heat
    • ***


Webster's Revised Unabridged Dictionary
Pyro-, + -meter,: cf. F. pyromètre,
Chambers's Twentieth Century Dictionary
Gr. pyr, fire, metron, a measure.


In literature:

The position that the pyrometer should occupy is subordinate to the construction of the furnace.
"Scientific American Supplement, No. 288" by Various
The pyrometer with its contained water was then just equal in heating capacity, while the temperature was not above 38 deg.
"Scientific American Supplement, No. 358, November 11, 1882" by Various
A somewhat similar instrument is the Gauntlett pyrometer, which is largely used in the north of England.
"Scientific American Supplement, No. 458, October 11, 1884" by Various
The leading principle on which the construction of this pyrometer has been based is the well-known law of the expansion of gases.
"Scientific American Supplement, No. 530, February 27, 1886" by Various
A good, reliable pyrometer to estimate temperatures to (say) 2500 deg.
"Scientific American Supplement, No. 611, September 17, 1887" by Various
A very accurate type of pyrometer, but one not so commonly used as those previously described, is the resistance pyrometer.
"The Working of Steel" by Fred H. Colvin
On looking through the pyrometer, a circle of red light appears, divided into distinct halves of different intensities.
"Steam, Its Generation and Use" by Babcock & Wilcox Co.
For this reason the use of a pyrometer, when possible, saves mistakes and trouble.
"Choice Cookery" by Catherine Owen
By means of this instrument (called a Pyrometer) we may estimate, in the most exact manner, the various dilatations of any solid body by heat.
"Conversations on Chemistry, V. 1-2" by Jane Marcet
Drop a recording pyrometer.
"Two Thousand Miles Below" by Charles Willard Diffin
In one corner was Lavoisier's pyrometer; in another Berard's gas food-warmer.
"Black Diamonds" by Mór Jókai
Pyrometers are also used, but with all these aids the experienced fireman pays due regard to sight and colour.
"Pottery, for Artists Craftsmen & Teachers" by George J. Cox
He invented a pyrometer for measuring temperatures; and was elected Fellow of the Royal Society.
"The Romance of Industry and Invention"
With the pyrometer at three hundred and fifty, it is hardly prudent to pass to thirty.
"The King of Schnorrers" by Israel Zangwill
When the "new" stove was on, and the "old" one lit for reheating, I went to the pyrometer shanty.
"Steel" by Charles Rumford Walker

In poetry:

Pyrometers were all at home--
No doubt the figures mounted high--
She sighed and said she could not roam,
Then pitt (i) ed me with cherry pie.
"Pious Pie Poem Puns" by Jared Barhite

In news:

But today, affordable ($50 to $90) noncontact or infrared pyrometers make this an easier and more accurate undertaking.
LumaSense Technologies's pyrometer is designed to provide greater accuracy in metal, glass, silicon and cement manufacturing.
This expert-system multiwavelength pyrometer overcomes many of the limitations associated with traditional pyrometers and has provided a wealth of information not previously available.
How To Use an Infrared Pyrometer: Too Hot, or Not.
An infrared or noncontact pyrometer takes the guesswork out of taking temperatures.
Two-color, digital- ratio pyrometer released.

In science:

An optical pyrometer was used to measure the temperature of the wire at the same point measured by the vibrometer.
Experimental results and constitutive modelling for tungsten and tantalum at high strain rates and very high temperatures