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measuring the sound intensity of Ultrasonic Pest Repellent

mr. robot

Feb 26, 2016
1
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Feb 26, 2016
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please help me
I need to know how can I measure the sound intensity of my ultrasonic pest repellent
it has frequency output of 38kHz-58kHz
I need to know the step by step procedure to measure the sound intensity at 4 meters if I only know the power output.
hoping someone could help me
thanks
 

shrtrnd

Jan 15, 2010
3,876
Joined
Jan 15, 2010
Messages
3,876
I don't know how to do this without some specialized equipment designed to do it.
I built a few of these years ago for my own use, maybe you're designing one for commercial sale?
The most important factor in the ones I built was finding the piezo 'speakers' capable of reproducing the desired frequency output. That took some effort.
Why is it that you need to measure sound 'intensity'?
 

Colin Mitchell

Aug 31, 2014
1,416
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Aug 31, 2014
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1,416
You need to get a piezo diaphragm that is capable of detecting (transmitting) at 60kHz.
Connect is to a CRO and look at the waveform. That's what I do. And the psychiatric nurse let's me do it twice a week.
 
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