Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Instruments and Amps Everything that makes music, Especially including instrument amps.

newbie: Piezo as Underwater Contact Mic, Z-Diode?
newbie: Piezo as Underwater Contact Mic, Z-Diode?
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 28th February 2010, 11:20 PM   #1
todoke is offline todoke  Germany
diyAudio Member
Join Date: Feb 2010
Location: Berlin
Default newbie: Piezo as Underwater Contact Mic, Z-Diode?

Hello, this is my first post here.
I'm starting with electronics and don't have so much knowledge yet.

I want to make some underwater recordings and found that piezos can be used well for this. So besides the huge different possibilities to build it mechanically, I'm also unclear about how to do it electronically.

I guess it would work with just the piezo itself, connected to a digital field recorder.

But I want to protect the recorder against voltage spikes and thought of using a Zener / Z-Diode for this.
Which maximum Voltage should be ok for a field recorder?

Next, I'm wondering whether the the signal will be too noisy if I don't pre-amplify it. Batteries seem unpractical for the sealed case and phantom power seems risky to me. I want to use it with just 5 m of cable for now.

I would appreciate any help on this to get me started.
  Reply With Quote


newbie: Piezo as Underwater Contact Mic, Z-Diode?Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
resonant frequency of water (distilled) and how to make speaker play underwater Audiophilenoob Multi-Way 172 29th November 2012 02:37 AM
Piezo pickups and onboard preamp for Piezo Gene_Johnson Instruments and Amps 2 19th February 2010 12:55 PM
piezo transducers as contact microphones lohk Instruments and Amps 38 4th March 2005 09:00 PM
Newbie needs help on mic w00t Instruments and Amps 3 25th February 2004 10:09 AM
pre amp blend system piezo/electret mic partyjups Solid State 0 17th July 2002 01:12 PM

New To Site? Need Help?

All times are GMT. The time now is 05:52 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio