pinch effectn.

Brit.

/ˈpɪn(t)ʃ ᵻˌfɛkt/, U.S.

/ˈpɪn(t)ʃ əˌfɛk(t)/,

/ˈpɪn(t)ʃ iˌfɛk(t)/

Origin: Formed within English, by compounding. Etymons: pinch v., effect n.

Etymology: < pinch v. + effect n.In sense 1 originally named pinch phenomenon by C. Hering:1907 C. Hering in Trans. Amer. Electrochem. Soc. Sept. 331 As the column of liquid looks as though it were being pinched by some mysterious and invisible force, the writer termed it the ‘pinch phenomenon’.

1. Physics. The constriction exhibited by a fluid through which a large electric current is flowing (e.g. a toroidal plasma), caused by the attractive force produced by the interaction of the current with its own magnetic field.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > [noun] > pinch effect

pinch effect1909

the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > hydrodynamics > magnetohydrodynamics > specific magnetic effect

pinch effect1909

1907 C. Hering in Trans. Amer. Electrochem. Soc. Sept. 337 If to this field there is added another one, I see no reason why it should not add to the pinching effect.]

1909 Science 1 Jan. 26/2 (heading) The ‘pinch-effect’ in unidirectional electric sparks.

1956 Sci. News Let. 15 Sept. 174/1 Generating the high heat..requires containers that will not melt or be otherwise affected. Using the ‘pinch effect’ would seem to eliminate the container problem, since the reacting gas column would contract to contain itself, thus not touch any walls.

1972 Physics Bull. Feb. 83/2 Chelsea Instruments is showing its apparatus..which utilizes the pinch effect (as in some thermonuclear apparatus) to produce high intensity.

1990 Sciences Jan. 28/1 The process, which is called the pinch effect, causes the plasma to form multiple strands of conducting current.

2. The slight narrowing of a gramophone record groove caused by the transverse movement of the cutting stylus, resulting in a vertical movement of the stylus at that point during play.

ΘΚΠ

society > communication > record > recording or reproducing sound or visual material > sound recording and reproduction > [noun] > playing of records > movement of stylus

pinch effect1935

tracing1942

1935 H. C. Bryson Gramophone Rec. x. 271 Hill and Dale cut records possess great advantages... There is no pinch effect.

1965 J. Walton Pick-ups iii. 40 A mono pick-up..should have some vertical compliance and low vertical mass if pinch effect is not to cause damage and excessive ‘needle talk’.

1988 V. Capel Audio & Hi-Fi Engineer's Pocket Bk. 54 The stylus is squeezed into spurious vertical motion twice for each cycle, so producing second harmonic distortion... This is called pinch effect.

This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).

单词	pinch effect
释义	pinch effectn. Brit. /ˈpɪn(t)ʃ ᵻˌfɛkt/, U.S. /ˈpɪn(t)ʃ əˌfɛk(t)/, /ˈpɪn(t)ʃ iˌfɛk(t)/ Origin: Formed within English, by compounding. Etymons: pinch v., effect n. Etymology: < pinch v. + effect n.In sense 1 originally named pinch phenomenon by C. Hering:1907 C. Hering in Trans. Amer. Electrochem. Soc. Sept. 331 As the column of liquid looks as though it were being pinched by some mysterious and invisible force, the writer termed it the ‘pinch phenomenon’. 1. Physics. The constriction exhibited by a fluid through which a large electric current is flowing (e.g. a toroidal plasma), caused by the attractive force produced by the interaction of the current with its own magnetic field. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > [noun] > pinch effect pinch effect1909 the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > hydrodynamics > magnetohydrodynamics > specific magnetic effect pinch effect1909 1907 C. Hering in Trans. Amer. Electrochem. Soc. Sept. 337 If to this field there is added another one, I see no reason why it should not add to the pinching effect.] 1909 Science 1 Jan. 26/2 (heading) The ‘pinch-effect’ in unidirectional electric sparks. 1956 Sci. News Let. 15 Sept. 174/1 Generating the high heat..requires containers that will not melt or be otherwise affected. Using the ‘pinch effect’ would seem to eliminate the container problem, since the reacting gas column would contract to contain itself, thus not touch any walls. 1972 Physics Bull. Feb. 83/2 Chelsea Instruments is showing its apparatus..which utilizes the pinch effect (as in some thermonuclear apparatus) to produce high intensity. 1990 Sciences Jan. 28/1 The process, which is called the pinch effect, causes the plasma to form multiple strands of conducting current. 2. The slight narrowing of a gramophone record groove caused by the transverse movement of the cutting stylus, resulting in a vertical movement of the stylus at that point during play. ΘΚΠ society > communication > record > recording or reproducing sound or visual material > sound recording and reproduction > [noun] > playing of records > movement of stylus pinch effect1935 tracing1942 1935 H. C. Bryson Gramophone Rec. x. 271 Hill and Dale cut records possess great advantages... There is no pinch effect. 1965 J. Walton Pick-ups iii. 40 A mono pick-up..should have some vertical compliance and low vertical mass if pinch effect is not to cause damage and excessive ‘needle talk’. 1988 V. Capel Audio & Hi-Fi Engineer's Pocket Bk. 54 The stylus is squeezed into spurious vertical motion twice for each cycle, so producing second harmonic distortion... This is called pinch effect. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022). < n.1909
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