pyrometers

The following are values of the calorific capacity of my pyrometers, that is, of those parts of each which share directly the temperature of the inclosed water, including the thermometer to be used with the instrument, and the heat communicated to the eider-down and otherwise lost during an observation, expressed in decimals of a British thermal unit, or in decimals of a pound of cold water:

Scientific American Supplement, No. 358, November 11, 1882 Various

The change in temperature of a body is ordinarily measured by thermometers, though for very high temperatures so-called pyrometers are used.

Steam, Its Generation and Use

The barrels of a dozen optical and radio telescopes, pyrometers, tele-scanners, and cameras thrust out at the great orb, under the blazoned slogan that the dome displayed to the universe in letters of cast bronze:

Starchild Omnibus Pohl, Frederik & Williamson, Jack 1963

The great Plan cruiser, dancing in the thrust of its re-actionless motors, slowed, halted, kissed the seared rock, and came to rest in the shadow of a silvery dome that reached out toward the sun with the barrels of telescopes and pyrometers, stared toward it with the great blind eyes of radio telescopes and masers.

Starchild Omnibus Pohl, Frederik & Williamson, Jack 1963

The thermometers and pyrometers usually employed are almost all based on the expansion of some fluid or other, or upon that of different metals.

Scientific American Supplement, No. 288, July 9, 1881 Various

Experiments were also made to ascertain the temperature of the gas in the retort; and for this purpose one of Murrie's pyrometers was used, the action of which depends on the pressure produced by the vaporization of mercury in a malleable iron tube.

Scientific American Supplement, No. 611, September 17, 1887 Various

_ -- At present the only possible known method of measuring the temperature of the furnace gases is by optical and radiation pyrometers.

Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171 Herbert M. Wilson

Expansion pyrometers for temperatures up to 1500 degrees

Steam, Its Generation and Use

The pyrometers used at present are the Wanner optical pyrometer and the Fery radiation pyrometer.

Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171 Herbert M. Wilson

The heat laboratory is equipped for the calibration of the thermometers and pyrometers, and electrical and other physical apparatus used by the various sections of the Technologic Branch.

Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171 Herbert M. Wilson