velocimetern.

Brit.

/ˌvɛləˈsɪmᵻtə/, U.S.

/ˌvɛləˈsɪmᵻdər/

Etymology: < Latin vēlōci-, vēlox swift + -meter comb. form².

An instrument or apparatus (variously constructed) for measuring the speed or velocity of engines, vessels, projectiles, etc.

ΘΚΠ

the world > movement > rate of motion > [noun] > in the physical sciences > measurement of > instrument

tachometer1810

velocimeter1842

velocity-measurer1850

tack1963

tacho1964

tach1966

the world > matter > physics > mechanics > dynamics > [noun] > speed or direction as vector quality > device to measure or record velocity

ballistic pendulum1764

tachometer1810

velocimeter1842

velocity-measurer1850

gun-pendulum1867

1842 H. Spencer in Civil Engineer & Archit. Jrnl. 5 231/2 The instrument represented in the annexed plate, which I have named a ‘Velocimeter’, is intended to supersede the long calculations, frequently necessary, in obtaining velocities in engine trials.

1853 Brit. Patent 606 4 The fundamental principle of this apparatus, to which is given the name of velocimeter, was established about a century ago.

1876 Catal. Special Loan Coll. Sci. Apparatus S. Kensington Mus. 55 Patent electric Velocimeter,..arranged for water currents and ascertaining the speed of vessels.

Derivatives

veloˈcimetry n. the measurement of speed, esp. speed of flow, by special techniques.

ΘΚΠ

the world > movement > rate of motion > [noun] > in the physical sciences > measurement of

tachometry1891

velocimetry1969

1969 IEEE Trans. Aerospace & Electronic Systems V. 687/1 (heading) Fundamentals of holographic velocimetry.

1978 Sci. Amer. Aug. 30/3 Swedish and Japanese workers have been testing laser velocimetry, a technique that utilizes the reflection of light from small particles in the flow to determine the magnitude and direction of the circulatory patterns.

1980 Recent Adv. Surg. 10 84 The first to apply the technique of Doppler ultrasound velocimetry to the detection of pulsatile arterial flow in the digital vessels.

This entry has not yet been fully updated (first published 1916; most recently modified version published online December 2021).

单词	velocimeter
释义	velocimetern. Brit. /ˌvɛləˈsɪmᵻtə/, U.S. /ˌvɛləˈsɪmᵻdər/ Etymology: < Latin vēlōci-, vēlox swift + -meter comb. form². An instrument or apparatus (variously constructed) for measuring the speed or velocity of engines, vessels, projectiles, etc. ΘΚΠ the world > movement > rate of motion > [noun] > in the physical sciences > measurement of > instrument tachometer1810 velocimeter1842 velocity-measurer1850 tack1963 tacho1964 tach1966 the world > matter > physics > mechanics > dynamics > [noun] > speed or direction as vector quality > device to measure or record velocity ballistic pendulum1764 tachometer1810 velocimeter1842 velocity-measurer1850 gun-pendulum1867 1842 H. Spencer in Civil Engineer & Archit. Jrnl. 5 231/2 The instrument represented in the annexed plate, which I have named a ‘Velocimeter’, is intended to supersede the long calculations, frequently necessary, in obtaining velocities in engine trials. 1853 Brit. Patent 606 4 The fundamental principle of this apparatus, to which is given the name of velocimeter, was established about a century ago. 1876 Catal. Special Loan Coll. Sci. Apparatus S. Kensington Mus. 55 Patent electric Velocimeter,..arranged for water currents and ascertaining the speed of vessels. Derivatives veloˈcimetry n. the measurement of speed, esp. speed of flow, by special techniques. ΘΚΠ the world > movement > rate of motion > [noun] > in the physical sciences > measurement of tachometry1891 velocimetry1969 1969 IEEE Trans. Aerospace & Electronic Systems V. 687/1 (heading) Fundamentals of holographic velocimetry. 1978 Sci. Amer. Aug. 30/3 Swedish and Japanese workers have been testing laser velocimetry, a technique that utilizes the reflection of light from small particles in the flow to determine the magnitude and direction of the circulatory patterns. 1980 Recent Adv. Surg. 10 84 The first to apply the technique of Doppler ultrasound velocimetry to the detection of pulsatile arterial flow in the digital vessels. This entry has not yet been fully updated (first published 1916; most recently modified version published online December 2021). < n.1842
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