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单词 psophometer
释义

psophometern.

Brit. /səˈfɒmᵻtə/, U.S. /soʊˈfɑmədər/, /səˈfɑmədər/
Origin: A borrowing from Greek, combined with an English element. Etymons: Greek ψόϕος , -meter comb. form2.
Etymology: < ancient Greek ψόϕος noise, one of a group of words of imitative origin, frequently expressing disgust, as ψό, exclamation of disgust or contempt + -meter comb. form2.
An instrument for giving a reading approximately proportional to the subjective aural effect of the noise in a communication circuit.
ΘΚΠ
society > communication > telecommunication > [noun] > signal > noise or interference > signal-to-noise ratio > instrument for measuring
psophometer1938
1938 Jrnl. Inst. Electr. Engineers 83 261/1 The circuit noise meter (or psophometer) is an instrument which has been designed for measuring the disturbing effect of power induction on telephone communication.
1993 Gloss. Electrotechnical, Power Terms (B.S.I.) iii. ii. 68 The psophometer incorporates a weighting network the characteristics of which differ according to the circuit under consideration.
1998 Proc. SPIE (Internat. Soc. Optical Engin.) 3380 39 A dramatic improvement over 10 dB Sinad (measurement done with no psophometer) was found over existing technology.
This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022).
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n.1938
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