underwater microphone data card
underwater microphones
Underwater microphones:
What You Get
Where to Listen
Sound Samples
User Comments
NEW!  Wireless Dolphinear 
Other Uses:
Dolphin FAQ
Whale Watch Directory
Sound Library & Articles
Topic Browser
Affiliate Program
underwater microphone data card

underwater microphones are called hydrophones

Underwater microphones - hydrophones

Under water microphones are better
known as hydrophones

Under water microphones, or hydrophones, come in a wide variety of sizes, shapes and materials. One underwater microphone might be very expensive and work very well for oil and gas exploration, but may not work well for listening for whales and dolphins. So buying the most expensive unit you can find doesn't necessarily guarantee it will do the job.

Many people think that underwater microphones are nothing more than a cheap standard microphone in a waterproof case. Nothing could be further from the truth. Sound transmission in water is much different that sound in air. A microphone that works well in at a karaoke bar won't work in water!

Hydrophones, real underwater microphones, are generally made from piezoelectric materials that generate small voltages when deformed. Sound wave hitting the piezoelectric element create stresses in the material which are converted into an electrical signal. This signal is amplified and fed into a set of earphones, or connected to an external speaker system, or tape recorder.

Dolphinear hydrophones uses a sensitive MPC piezoelectric element encased in a special epoxy. This provides high sensitivity and an excellent frequency. Because of their unique housing they are very rugged and able to withstand abuse.

<<< Click on the sidebar for more information!

DolphinEar Hydrophones
are designed for
research, whale watching or recreational use.

Used throughout the world by universities, government, military, whale watching fleets, industry and by 'ordinary' folks!

No need to wait either! Because of the high demand, we always have a large stock of these on hand and we can usually ship within 24-48 hours. Not 6-8 weeks like normal manufacturers! Each DolphinEar is thoroughly tested in the water before we ship it to you!

Plus we have FREE technical support to help you solve problems, and to help you get the most from your DolphinEar system. With our large customer base, we've probably already solved your problem!

Click here to SEE and HEAR DolphinEAR in action!


Kids Section!

Latest Development

Works with RADIO or CELL/Mobile Phones


PB 3098 Bletchley
Milton Keynes MK2 2AD

U.K. TEL/FAX (020) 7681 3734 (London)
U.S. TEL/FAX 1-415-704-3134 (San Francisco)

FAX: +44 20 7681 3734 -or- +1-415-704-3134

Email: info@dolphinear.com

© 1999-2000, Arretec. All Rights Reserved
































| Lookup Keys: hydrophone -av | hydrophone monitor | underwater sound.htm | underwater microphone | underwater microphones | underwater monitor | underwater newsletter | underwater sound library | underwater sound samples | underwater sound recording | whale song | whale sounds | whale facts | whale directory | whale watching | hale watching directory | whale watcher | whale watching guide | whale vocalization | whale watching links | hales dolphins manatees | whales | whale | dolphin | dolphins | dolphin whale | dolphin vocalization | dolphin faq | dolphin watching | dolphin watching directory | dolphin sounds | dolphin whistles | dolphin signature whistles | dolphin echo location | dolphin echolocation | dolphin links | dolphin ezine | whale ezine | ear on the sea ezine | underwater sound ezine | whalewatching ezine | cetacean vocalization | cetacean sounds | cetacean sound | spectrogram software | marine mammal sounds | marine mammals | dolphin research | whale_research | low cost hydrophones -hb | hydrophones -hb | low cost hydrophones -is | hydrophones -is | hydrophone -is | low cost hydrophone systems -is | low cost hydrophone systems -av | hydrophones -av | CONTACT US |