[PSUBS-MAILIST] Fwd: transducer

[hank pronk via Personal_Submersibles]

 Hi Rick,Thank you for that, I will see how my test goes Wednesday before I start getting serious.  Turns out with headphones, it is a lot louder.  Wish me luckHank
    On Monday, May 14, 2018, 11:04:13 AM MDT, Rick Patton via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  
 
 Hank,
My brother in law used to work for a company that designed this kind of stuff so I sent your post to him and this is his response. Hope it helps.
Rick
---------- Forwarded message ----------
From: Wally Schneider <wally at designenginuity.com>
Date: Mon, May 14, 2018 at 4:02 AM
Subject: RE: [PSUBS-MAILIST] transducer
To: Rick Patton <satwelder at gmail.com>



Hi Rick,

 

If it’s a straight-up piezo transducer (no matching network) and Hank has access to some basic lab gear, the resonant frequency can be measured using the method in the link below.

https://www.americanpiezo.com/ knowledge-center/piezo-theory/ determining-resonance- frequency.html.   Probably the best results would be with the transducer in air.

 

If he doesn’t have the gear/expertise, his local college physics dept may be able to help him.

 

 

Wally Schneider

Design Enginuity

wally at designenginuity.com                   (  425.239.0265

Electronic Design |  Schematic Capture |  Project Management  |  PCB Layout

 

From: Rick Patton <satwelder at gmail.com> 
Sent: Sunday, May 13, 2018 10:59 AM
To: Wally Schneider <wally at designenginuity.com>
Subject: Fwd: [PSUBS-MAILIST] transducer

 

Hey Sir Walter,

 

Just got your drawings and printed them so I can take them over to the shop and try and follow threw with your suggestions. I am forwarding this email on to you from Hank as I am sure you would know the answer as you worked with that company in the north end of lake Washington for a while and that's what they did?? 

Rick 

 

---------- Forwarded message ----------
From: hank pronk via Personal_Submersibles <personal_submersibles at psubs. org>
Date: Sun, May 13, 2018 at 3:46 AM
Subject: [PSUBS-MAILIST] transducer
To: Personal Submersibles General Discussion <personal_submersibles at psubs. org>



HI All,

I am looking for a 10Hz transducer for my coms.  Does anyone know how to test a transducer to determine if it is 10Hz or 27Hz.

Hank


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