pyrometricadj.

Brit.

/ˌpʌɪrə(ʊ)ˈmɛtrɪk/, U.S.

/ˌpaɪroʊˈmɛtrɪk/

Origin: Formed within English, by compounding. Etymons: pyro- comb. form, -metric comb. form.

Etymology: < pyro- comb. form + -metric comb. form, after pyrometer n. Compare French pyrométrique (c1799 in the passage translated in quot. 1800 at sense 1). With sense 2 compare earlier pyrometrical adj. and pyrometry n.

Physics and Engineering.

1. Of or relating to a pyrometer or the measurement of high temperatures; used in or as a pyrometer.Recorded earliest in pyrometric piece n. at Compounds.

ΘΚΠ

the world > matter > properties of materials > temperature > measurement of temperature > [adjective] > specific

pyrometric1800

pyrometrical1818

ebulliometric1935

bathythermographic1952

1800 tr. E. J. B. Bouillon-Lagrange Man. Course Chem. I. 20 This pyrometer [sc. Wedgwood's] consists of two parts, one of which, called the Gage, serves to measure the degrees of diminution or contraction: the other consists of small cylinders of clay, called Pyro~metric Pieces [Fr. pièces pyrométriques].

1839 A. Ure Dict. Arts 1016 Pyrometric balls of red clay, coated with a very fusible lead enamel, are employed in the English potteries to ascertain the temperature of the glaze kilns.

1883 Manufacturer & Builder Feb. 34/3 Pyrometric measurements of the temperature of the incandescent coal.

1929 C. A. Klauder & H. C. Wise College Archit. Amer. xi. 200 The pyrometric laboratory will have apparatus for high temperature effect and control.

1946 V. N. Wood Metall. Materials iv. 113 In most industrial pyrometric installations the cold junction is transferred by a twin cable..from the head of the couple to terminals in the instrument.

1996 Internat. Jrnl. Physics 17 1217 The electromagnetic levitation technique combined with pyrometric methods have been applied to verify the metastable phase diagram of Fe-Cr-Ni alloys.

†2. Of or relating to thermal expansion of a solid, or its measurement; = pyrometrical adj. 1. Cf. pyrometer n. 1. Obsolete.

ΚΠ

1818 Trans. Amer. Philos. Soc. 1 211 I had seen Mr. Troughton, in his pyrometric experiments, use the spirit level upon a lever..to measure the increased expansion.

1836 J. Herschel in C. Babbage 9th Bridgewater Treat. (1837) App. I. 214 The elevation of strata by pyrometric expansion of the subjacent columns of rock.

1855 Sci. Amer. 20 Jan. 148/4 As the expansion and contraction of the water takes place slowly, the action upon the fire is..not sudden, as in pyrometric arrangements when metallic rods connected with the dampers are expanded by the heat of stoves or fires.

Compounds

pyrometric cone n. each of a set of small numbered cones or pyramids made of different mixtures of refractory material and flux so that they melt at different known temperatures, used to gauge the temperature inside furnaces and kilns; also called Seger cone.

ΘΚΠ

society > occupation and work > equipment > pottery manufacturing equipment > [noun] > pyrometric cone

pyrometric cone1896

Staffordshire cone1967

1896 Science 10 Apr. 568/1 The author recommends the use of the ‘Normal Pyrometric Cones’, invented by Dr. Seger, as affording a safe and simple method of controlling the temperature of the kiln.

1983 K. Clark Potter's Man. v. 180 These pyrometric cones are made from ceramic materials and according to their composition, will melt and bend at the correct temperature.

† pyrometric piece n. Obsolete each of a set of pieces of clay used in the original form of the pyrometer which, having been heated to differing temperatures and different colours, may be used to gauge the temperature of a furnace from the colour of a like piece placed in a furnace.

ΚΠ

1800Pyrometric piece [see sense 1].

1853 W. T. Brande Dict. Sci., Lit., & Art 1010/1 Wedgwood divided his scale into 240°; and in order to compare it with Fahrenheit's thermometer, made use of a piece of fine silver fitted to the same mould as the pyrometric pieces of clay.

This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).

单词	pyrometric
释义	pyrometricadj. Brit. /ˌpʌɪrə(ʊ)ˈmɛtrɪk/, U.S. /ˌpaɪroʊˈmɛtrɪk/ Origin: Formed within English, by compounding. Etymons: pyro- comb. form, -metric comb. form. Etymology: < pyro- comb. form + -metric comb. form, after pyrometer n. Compare French pyrométrique (c1799 in the passage translated in quot. 1800 at sense 1). With sense 2 compare earlier pyrometrical adj. and pyrometry n. Physics and Engineering. 1. Of or relating to a pyrometer or the measurement of high temperatures; used in or as a pyrometer.Recorded earliest in pyrometric piece n. at Compounds. ΘΚΠ the world > matter > properties of materials > temperature > measurement of temperature > [adjective] > specific pyrometric1800 pyrometrical1818 ebulliometric1935 bathythermographic1952 1800 tr. E. J. B. Bouillon-Lagrange Man. Course Chem. I. 20 This pyrometer [sc. Wedgwood's] consists of two parts, one of which, called the Gage, serves to measure the degrees of diminution or contraction: the other consists of small cylinders of clay, called Pyro~metric Pieces [Fr. pièces pyrométriques]. 1839 A. Ure Dict. Arts 1016 Pyrometric balls of red clay, coated with a very fusible lead enamel, are employed in the English potteries to ascertain the temperature of the glaze kilns. 1883 Manufacturer & Builder Feb. 34/3 Pyrometric measurements of the temperature of the incandescent coal. 1929 C. A. Klauder & H. C. Wise College Archit. Amer. xi. 200 The pyrometric laboratory will have apparatus for high temperature effect and control. 1946 V. N. Wood Metall. Materials iv. 113 In most industrial pyrometric installations the cold junction is transferred by a twin cable..from the head of the couple to terminals in the instrument. 1996 Internat. Jrnl. Physics 17 1217 The electromagnetic levitation technique combined with pyrometric methods have been applied to verify the metastable phase diagram of Fe-Cr-Ni alloys. †2. Of or relating to thermal expansion of a solid, or its measurement; = pyrometrical adj. 1. Cf. pyrometer n. 1. Obsolete. ΚΠ 1818 Trans. Amer. Philos. Soc. 1 211 I had seen Mr. Troughton, in his pyrometric experiments, use the spirit level upon a lever..to measure the increased expansion. 1836 J. Herschel in C. Babbage 9th Bridgewater Treat. (1837) App. I. 214 The elevation of strata by pyrometric expansion of the subjacent columns of rock. 1855 Sci. Amer. 20 Jan. 148/4 As the expansion and contraction of the water takes place slowly, the action upon the fire is..not sudden, as in pyrometric arrangements when metallic rods connected with the dampers are expanded by the heat of stoves or fires. Compounds pyrometric cone n. each of a set of small numbered cones or pyramids made of different mixtures of refractory material and flux so that they melt at different known temperatures, used to gauge the temperature inside furnaces and kilns; also called Seger cone. ΘΚΠ society > occupation and work > equipment > pottery manufacturing equipment > [noun] > pyrometric cone pyrometric cone1896 Staffordshire cone1967 1896 Science 10 Apr. 568/1 The author recommends the use of the ‘Normal Pyrometric Cones’, invented by Dr. Seger, as affording a safe and simple method of controlling the temperature of the kiln. 1983 K. Clark Potter's Man. v. 180 These pyrometric cones are made from ceramic materials and according to their composition, will melt and bend at the correct temperature. † pyrometric piece n. Obsolete each of a set of pieces of clay used in the original form of the pyrometer which, having been heated to differing temperatures and different colours, may be used to gauge the temperature of a furnace from the colour of a like piece placed in a furnace. ΚΠ 1800Pyrometric piece [see sense 1]. 1853 W. T. Brande Dict. Sci., Lit., & Art 1010/1 Wedgwood divided his scale into 240°; and in order to compare it with Fahrenheit's thermometer, made use of a piece of fine silver fitted to the same mould as the pyrometric pieces of clay. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022). < adj.1800
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