Definitions for hydrophone
ˈhaɪ drəˌfoʊnhy·drophone

WiktionaryRate this definition:0.0 / 0 votes

1. hydrophonenoun

   a transducer that converts underwater sound waves into electrical signals, rather like a microphone

WikipediaRate this definition:0.0 / 0 votes

1. Hydrophone

   A hydrophone (Ancient Greek: ὕδωρ + φωνή, lit. 'water + sound') is a microphone designed to be used underwater for recording or listening to underwater sound. Most hydrophones are based on a piezoelectric transducer that generates an electric potential when subjected to a pressure change, such as a sound wave. Some piezoelectric transducers can also serve as a sound projector, but not all have this capability, and some may be destroyed if used in such a manner. A hydrophone can detect airborne sounds, but will be insensitive because it is designed to match the acoustic impedance of water, a denser fluid than air. Sound travels 4.3 times faster in water than in air, and a sound wave in water exerts a pressure 60 times that exerted by a wave of the same amplitude in air. Similarly, a standard microphone can be buried in the ground, or immersed in water if it is put in a waterproof container, but will give poor performance due to the similarly bad acoustic impedance match.

WikidataRate this definition:0.0 / 0 votes

1. Hydrophone

   A hydrophone is a microphone designed to be used underwater for recording or listening to underwater sound. Most hydrophones are based on a piezoelectric transducer that generates electricity when subjected to a pressure change. Such piezoelectric materials, or transducers can convert a sound signal into an electrical signal since sound is a pressure wave. Some transducers can also serve as a projector, but not all have this capability, and may be destroyed if used in such a manner. A hydrophone can "listen" to sound in air, but will be less sensitive due to its design as having a good acoustic impedance match to water, which is a denser substance than air. Likewise, a microphone can be buried in the ground, or immersed in water if it is put in a waterproof container, but will give similarly poor performance due to the similarly bad acoustic impedance match.

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Hydrophone

   hī′dro-fōn, n. a marine electric apparatus for detecting the approach of a torpedo-boat, &c.

How to pronounce hydrophone?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say hydrophone in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of hydrophone in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of hydrophone in Pythagorean Numerology is: 2

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References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Hydrophone
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Hydrophone
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=hydrophone
4. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=hydrophone