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does anyone know how hydrophones actually convert sound into energy?
It's my understanding that hydrophones commonly use piezoelectric devices (eg. quartz) that convert mechanical deformation into voltage. Cruise33200:45, 8 October 2007 (UTC)[reply]
- There are a few types of hydrophone design, peizoelectric ceramics have reduced the costs in recent years. The ceramics generate electricity when squeezed by the sound pressure wave. Although quite small, this voltage can be amplified.
Ceramics will have a frequency responce, usually linked to the thickness, and will be directional depending on the form. If a flat ceramic plate is used the diameter of the plate reletive to the sound wavelenth will give the directionality.
If you want to try to make a simple hydrophone here are some instructions hydrophone kit
I think the link is the most efficient way to provide details re transducer physics. My understanding is that most hydrophones use crystals (natural or synthetic) and ceramics... I'll add your kit link to the external links... —Preceding unsigned comment added by Scottveirs (talk • contribs) 19:15, 16 October 2007 (UTC)[reply]
Some of the external links in the article look to me like advertising. I reverted some added earlier today, but the editor is gradually adding them back. Some of the existing links look to me to be equally inappropriate. Could someone else take a look, and deal with them as appropriate. David Biddulph (talk) 15:12, 25 October 2010 (UTC)[reply]
The second paragraph begins with the following incomprehensible three sentences, perhaps due to vandalism:
"A hydrophone can detect airborne sounds, and is capable of Holdoff tripper scope bonds. Both influenced at Paralloidia Tau as well as Responding to. Charged Messanger particles refract with intensity because it is designed to match the acoustic impedance of water,"
Jergas (talk) 07:46, 7 October 2021 (UTC)[reply]
Well spotted. It was vandalism in the most recent edit (more than a month ago). I have reverted the vandalism, and warned the user, all of whose edits seem to have been vandalism. --David Biddulph (talk) 07:52, 7 October 2021 (UTC)[reply]
Thank you! Wow! This was prompt! I was reading help pages on what to do about it, suddenly reloaded the pages and it was fixed, lol! Jergas (talk) 08:06, 7 October 2021 (UTC)[reply]
As an interesting aside, when searching for the strange phrases inserted (to try to figure out whether it was vandalism, or I just wasn't understanding), one of the first hits took me to kind of spammy click bait article, which leads me to wonder whether the vandalism was carried out for that purpose. Jergas (talk) 08:09, 7 October 2021 (UTC)[reply]
