electrometern.

Brit.

/ᵻˌlɛkˈtrɒmᵻtə/, U.S.

/əˌlɛkˈtrɑmədər/,

/iˌlɛkˈtrɑmədər/

Origin: Formed within English, by compounding; probably modelled on a French lexical item. Etymons: electro- comb. form, -meter comb. form².

Etymology: < electro- comb. form + -meter comb. form², probably after French électromètre (1746, with reference to a hypothetical instrument not yet in existence; then 1749 with reference the instrument invented by Le Roy and d'Arcy in 1748).

Originally: an instrument for ascertaining the presence of an electric charge on an object, and giving an indication of its magnitude; = electroscope n. Later also: any instrument for measuring electrostatic potential difference or electric charge. Also figurative (rare).binant, quadrant, torsion electrometer: see the first element.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electricity > [noun] > measurement of > instrument for

electrometer1749

electronometer1837

electronome1872

binant electrometer1908

ratiometer1925

the world > matter > physics > electromagnetic radiation > electricity > electric charge, electricity > [noun] > instrument for measuring

electrometer1749

electroscope1776

coulometer1902

integrating meter1902

1749 Gentleman's Mag. Aug. 352 The elevation of the instrument will appear to be always in proportion to the difference of the electrical force, and, consequently, that this instrument is a true and exact electrometer.

1769 J. Priestley Familiar Introd. Study Electr. (ed. 2) i. viii. 64 The force of a shock, after the explosion, may be measured by Mr. Lane's electrometer.

1797 S. T. Coleridge Let. 6 Feb. (1956) I. 307 Your nerves are exquisite electrometers of Taste.

1800 Med. & Physical Jrnl. 4 119 The plate A was connected with the top of the electrometer and the silver end of the pile.

1807 T. Young Course Lect. Nat. Philos. I. liv. 683 When the balls of an electrometer stand at the distance of 4 degrees, they appear to indicate a charge nearly 8 times as great as when they stand at one degree.

1812 H. Davy Elements Chem. Philos. 128 The electrometer..consists of two gold leaves attached to a metal-plate.

1832 Nat. Philos. (Libr. Useful Knowl.) II. Electricity iv. §74 The most perfect electrometer for measuring very small quantities of electricity, is..the torsion balance.

1881 J. C. Maxwell Treat. Electr. & Magnetism (ed. 2) I. 453 The..electromotive force of an electromotor may be measured..electrostatically by means of the electrometer.

1922 R. Glazebrook Dict. Appl. Physics II. 600/1 To demonstrate the piezo effect it is convenient to place a sheet of tinfoil on a slab of tourmaline and connect the foil to an electrometer.

1935 C. J. Smith Intermediate Physics (ed. 2) v. xxxvii. 638 The potential of the shell, as indicated by the electrometer, was about ¹/ ₄₈₆ of its original potential.

1964 B. V. Rollin Introd. Electronics xiv. 181 The vibrating reed electrometer can be used for measurements on circuits of resistance up to 10¹⁶ ohm.

2007 Jrnl. Non-crystalline Solids 353 120/2 When the polarization relaxes, a current is generated, which was measured by a sensitive electrometer.

This entry has been updated (OED Third Edition, June 2008; most recently modified version published online March 2022).

单词	electrometer
释义	electrometern. Brit. /ᵻˌlɛkˈtrɒmᵻtə/, U.S. /əˌlɛkˈtrɑmədər/, /iˌlɛkˈtrɑmədər/ Origin: Formed within English, by compounding; probably modelled on a French lexical item. Etymons: electro- comb. form, -meter comb. form². Etymology: < electro- comb. form + -meter comb. form², probably after French électromètre (1746, with reference to a hypothetical instrument not yet in existence; then 1749 with reference the instrument invented by Le Roy and d'Arcy in 1748). Originally: an instrument for ascertaining the presence of an electric charge on an object, and giving an indication of its magnitude; = electroscope n. Later also: any instrument for measuring electrostatic potential difference or electric charge. Also figurative (rare).binant, quadrant, torsion electrometer: see the first element. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > [noun] > measurement of > instrument for electrometer1749 electronometer1837 electronome1872 binant electrometer1908 ratiometer1925 the world > matter > physics > electromagnetic radiation > electricity > electric charge, electricity > [noun] > instrument for measuring electrometer1749 electroscope1776 coulometer1902 integrating meter1902 1749 Gentleman's Mag. Aug. 352 The elevation of the instrument will appear to be always in proportion to the difference of the electrical force, and, consequently, that this instrument is a true and exact electrometer. 1769 J. Priestley Familiar Introd. Study Electr. (ed. 2) i. viii. 64 The force of a shock, after the explosion, may be measured by Mr. Lane's electrometer. 1797 S. T. Coleridge Let. 6 Feb. (1956) I. 307 Your nerves are exquisite electrometers of Taste. 1800 Med. & Physical Jrnl. 4 119 The plate A was connected with the top of the electrometer and the silver end of the pile. 1807 T. Young Course Lect. Nat. Philos. I. liv. 683 When the balls of an electrometer stand at the distance of 4 degrees, they appear to indicate a charge nearly 8 times as great as when they stand at one degree. 1812 H. Davy Elements Chem. Philos. 128 The electrometer..consists of two gold leaves attached to a metal-plate. 1832 Nat. Philos. (Libr. Useful Knowl.) II. Electricity iv. §74 The most perfect electrometer for measuring very small quantities of electricity, is..the torsion balance. 1881 J. C. Maxwell Treat. Electr. & Magnetism (ed. 2) I. 453 The..electromotive force of an electromotor may be measured..electrostatically by means of the electrometer. 1922 R. Glazebrook Dict. Appl. Physics II. 600/1 To demonstrate the piezo effect it is convenient to place a sheet of tinfoil on a slab of tourmaline and connect the foil to an electrometer. 1935 C. J. Smith Intermediate Physics (ed. 2) v. xxxvii. 638 The potential of the shell, as indicated by the electrometer, was about ¹/ ₄₈₆ of its original potential. 1964 B. V. Rollin Introd. Electronics xiv. 181 The vibrating reed electrometer can be used for measurements on circuits of resistance up to 10¹⁶ ohm. 2007 Jrnl. Non-crystalline Solids 353 120/2 When the polarization relaxes, a current is generated, which was measured by a sensitive electrometer. This entry has been updated (OED Third Edition, June 2008; most recently modified version published online March 2022). < n.1749
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