单词 | ionophone |
释义 | ionophonen. Acoustics. 1. A microphone using an ionized gas to register the variations in pressure produced by an impinging sound wave. rare. ΘΚΠ the world > physical sensation > hearing and noise > audibility > sound magnification or reproduction > [noun] > microphone carbon transmitter1878 microphone1878 carbon microphone1879 pantelephone1881 phonoscope1890 mike1911 condenser microphone1921 magnetophone1922 radio microphone1922 ionophone1924 crystal microphone1925 ribbon microphone1925 radio mike1926 laryngophone1927 velocity microphone1931 ribbon mike1933 pressure microphone1934 bug1936 eight ball1937 ribbon1937 throat microphone1937 throat mike1937 rifle microphone1938 parabolic microphone1939 lip microphone1941 intercept1942 spike mike1950 spy-mike1955 spy-microphone1960 mic1961 rifle mike1961 gun microphone1962 spike microphone1962 shotgun microphone1968 Lavallière1972 wire1973 sneaky1974 multi-mikes1990 1924 R. A. Engler U.S. Patent 1,507,884 3/1 I may call my transmitter an ‘ionophone’ or ‘phonia’, one signifies ‘ion speaker’ and the other ‘speaking ion’, because ions are used in all its forms. 2. A kind of loudspeaker that uses the vibrations of a volume of ionized air in place of those of a diaphragm. ΘΚΠ the world > physical sensation > hearing and noise > audibility > sound magnification or reproduction > [noun] > loud speaker loudspeaker1884 speaker1926 condenser loudspeaker1929 monitor1931 tweeter1934 woofer1935 squawk box1945 ionophone1952 monitor speaker1954 mid-range1955 squawker1959 subwoofer1975 1952 Electr. Engin. Abstr. 55 656/2 The ionophone can also be used as a wide-range ultrasonic emitter and as a microphone. 1960 New Scientist 14 Jan. 100/1 They were using a new type of loudspeaker, the Ionophone, where a radio-frequency corona discharge is formed between two electrodes at one end of a glass horn. 2009 J. Blauert & N. Xiang Acoustics Engineers (ed. 2) vi. 86 A high-frequency glowing discharge emits sound when modulated with an audio signal, creating the basis for an ionophone. This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022). < n.1924 |
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