servo motorn.

Brit.

/ˈsəːvəʊ ˌməʊtə/, U.S.

/ˈsərvoʊ ˌmoʊdər/

Origin: A borrowing from French. Etymon: French servo-moteur.

Etymology: < French servo-moteur (1872; < classical Latin servus slave (see serf n.) + French moteur motor n.), with remodelling of the second element after motor n. Compare later servo n.¹In the official notice of the prize awarded in 1875 to the inventor, M. Farcot, the apparatus is called ‘servo-moteur ou moteur asservi’.

Originally: an auxiliary motor that controls a specific component of a machine or device, or an aspect of its operation. In later use: a device used as a motor in a servomechanism, typically supplying a device with current in response to a control signal and regulating its performance by means of a feedback loop.

ΘΚΠ

society > occupation and work > equipment > machine > machines which impart power > motor > [noun] > others

gas motor1855

sun motor1864

servo motor1872

telemotor1880

power pack1937

linear motor1957

society > occupation and work > equipment > machine > parts of machines > mechanism > [noun] > part of > which sets other parts moving

motion1605

motor1656

messenger1929

servo motor1932

1872 W. E. Newton Brit. Patent 2635 (1873) 11 This bell crank is..the basis of the arrangement of levers of the servo-motor in general.

1889 C. Sleeman Torpedoes (ed. 2) 184 The servo-motor is the air-engine from which is derived the power to move the horizontal or diving rudders.

1932 Jrnl. Iron & Steel Inst. 125 642 The apparatus..makes use of the dilatations of the test bar to regulate the temperature of the furnace by means of a servo-motor.

1976 Gramophone Sept. 510/1 A DC servo motor powers the movement of the arm.

2005 Independent on Sunday (Nexis) 30 Oct. Every flick of the switch is accompanied by an obedient whirr from servo motors that rearrange the gels.

This entry has been updated (OED Third Edition, March 2021; most recently modified version published online March 2022).

单词	servo motor
释义	servo motorn. Brit. /ˈsəːvəʊ ˌməʊtə/, U.S. /ˈsərvoʊ ˌmoʊdər/ Origin: A borrowing from French. Etymon: French servo-moteur. Etymology: < French servo-moteur (1872; < classical Latin servus slave (see serf n.) + French moteur motor n.), with remodelling of the second element after motor n. Compare later servo n.¹In the official notice of the prize awarded in 1875 to the inventor, M. Farcot, the apparatus is called ‘servo-moteur ou moteur asservi’. Originally: an auxiliary motor that controls a specific component of a machine or device, or an aspect of its operation. In later use: a device used as a motor in a servomechanism, typically supplying a device with current in response to a control signal and regulating its performance by means of a feedback loop. ΘΚΠ society > occupation and work > equipment > machine > machines which impart power > motor > [noun] > others gas motor1855 sun motor1864 servo motor1872 telemotor1880 power pack1937 linear motor1957 society > occupation and work > equipment > machine > parts of machines > mechanism > [noun] > part of > which sets other parts moving motion1605 motor1656 messenger1929 servo motor1932 1872 W. E. Newton Brit. Patent 2635 (1873) 11 This bell crank is..the basis of the arrangement of levers of the servo-motor in general. 1889 C. Sleeman Torpedoes (ed. 2) 184 The servo-motor is the air-engine from which is derived the power to move the horizontal or diving rudders. 1932 Jrnl. Iron & Steel Inst. 125 642 The apparatus..makes use of the dilatations of the test bar to regulate the temperature of the furnace by means of a servo-motor. 1976 Gramophone Sept. 510/1 A DC servo motor powers the movement of the arm. 2005 Independent on Sunday (Nexis) 30 Oct. Every flick of the switch is accompanied by an obedient whirr from servo motors that rearrange the gels. This entry has been updated (OED Third Edition, March 2021; most recently modified version published online March 2022). < n.1872
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