| 单词 | hydrophone |
| 释义 | hydrophone|ˈhaɪdrəfəʊn|
[f. hydro- a + Gr. -ϕωνος, f. ϕωνή voice, sound, on analogy of microphone, etc.]
An instrument for the detection of sound by water; also of water, or of something in water, by sound. a. A bag containing water, placed between the stethoscope and the chest, to intensify the sounds heard in auscultation. b. (See quot. 1887.) c. An instrument devised to give warning by electricity to a port or fleet of the approach of a hostile vessel.
1860N. Syd. Soc. Year Bk. Med. 59 A water-bag increases the impression conveyed to the ear by the wooden stethoscope if it be placed between the flat ear-piece and the external ear. The name of hydrophone has been given to it. 1862H. W. Fuller Dis. Lungs 76 Another form of instrument, introduced by Dr. Scott Alison, and termed by him a ‘hydrophone’. 1887Engineering 29 July 131 The hydrophone..is a clever little instrument devised to detect any water escapes from the mains or service pipes, cocks or closets. 1893Daily News 8 June 5/8 Captain McEvoy's hydrophone..in connection with a new instrument named a kinesiscope..has for its object the prevention of surprise attacks from torpedo boats, or other hostile vessels, approaching anchorages or mine fields. |
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