Piezo testing
Piezo testing
I've been looking around the forum as I thought there was an easy way to test the piezos singly without any complicated equipment. I just want to make sure the ones I'm gluing up work. I just tried a battery and a few wires and at least got a crackle out of them, but is there a way to be more sure of them working?
I played some music through my cabs and took the cardboard tube from a paper towel roll. Push it in each piezo horn and listen on the other end.
Currently running:
Four Titan 48's, Six Omnitop 12's, Two Wedgehorn 10's, Omni12 2-10
Also Built: Omni15 Tallboy, Omni10.5.
'The hardest material on earth is the human skull'. How do we know this? Try pounding a new idea into one.
Four Titan 48's, Six Omnitop 12's, Two Wedgehorn 10's, Omni12 2-10
Also Built: Omni15 Tallboy, Omni10.5.
'The hardest material on earth is the human skull'. How do we know this? Try pounding a new idea into one.
Pre build
I was hoping for an easy way to test them before building the array even.
Oops... I don't think thats what you meant.
I hooked up the piezos to my computer speakers to test. They have spring loaded terminals so I just touched the wires to each piezo with music playing.
I hooked up the piezos to my computer speakers to test. They have spring loaded terminals so I just touched the wires to each piezo with music playing.
Currently running:
Four Titan 48's, Six Omnitop 12's, Two Wedgehorn 10's, Omni12 2-10
Also Built: Omni15 Tallboy, Omni10.5.
'The hardest material on earth is the human skull'. How do we know this? Try pounding a new idea into one.
Four Titan 48's, Six Omnitop 12's, Two Wedgehorn 10's, Omni12 2-10
Also Built: Omni15 Tallboy, Omni10.5.
'The hardest material on earth is the human skull'. How do we know this? Try pounding a new idea into one.
http://billfitzmaurice.com/phpBB2/viewtopic.php?t=3932
Read down this thread. I use a small transistor radio tuned between stations. Check for equal volume and equal tone (especially if your piezo's are the cheapest crappiest models, I found lots of bad ones there). And read on the possible polarity/phase issues and how to test that.
While you're working at your piezo arrays, the following can be useful too:
http://billfitzmaurice.com/phpBB2/viewtopic.php?t=3629
Even after you've glued the array together, you can test each individual driver (the cardboard tube trick) and easily swap out defective driver elements. Unless you glued them airtight first before testing, that is.
Read down this thread. I use a small transistor radio tuned between stations. Check for equal volume and equal tone (especially if your piezo's are the cheapest crappiest models, I found lots of bad ones there). And read on the possible polarity/phase issues and how to test that.
While you're working at your piezo arrays, the following can be useful too:
http://billfitzmaurice.com/phpBB2/viewtopic.php?t=3629
Even after you've glued the array together, you can test each individual driver (the cardboard tube trick) and easily swap out defective driver elements. Unless you glued them airtight first before testing, that is.
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Bill Fitzmaurice
- Site Admin
- Posts: 28916
- Joined: Tue May 02, 2006 5:59 pm
You don't glue the element housing to the horn, explained here:AntonZ wrote:
Even after you've glued the array together, you can test each individual driver (the cardboard tube trick) and easily swap out defective driver elements. Unless you glued them airtight first before testing, that is.
http://billfitzmaurice.com/phpBB2/viewtopic.php?t=1987