| 释义 |
microphony|maɪˈkrɒfənɪ|
†1. [ad. Gr. µῑκροϕωνία, f. µῑκρόϕων-ος weak-voiced, f. µῑκρό-ς small + ϕωνή voice.] Weakness of voice. Obs. rare—0.
1849in Craig.
2. Electronics. [f. microphone + -y3.] The generation of microphonics in electrical apparatus.
1934F. J. Camm Everyman's Wireless Bk. v. 91 (table) Microphony: This may result in ringing, booming, or other sounds. 1946Electronic Engin. XVIII. 336/2 The ruggedness which is required to give long service will normally ensure freedom from microphony. 1951Ibid. 431/2 The design of a valve with low microphony is a long and tedious process. 1963Mullard Technical Communications VII. 227/1 Microphony is occasionally experienced in a tape recorder when high gain a.f. valves are used in the first stages. |
