How to be build an Electromagnetic and Ultrasonic Shield

Thread Starter

4beowulf7

Joined Jul 25, 2015
20
Hi guys!
I like to post some of my thoughts on shielding Electromagnetic (EM) and Ultrasonic waves at the same time.

Shielding EM waves is easy. You need to enclose whatever you want to shield by some metal. Faraday cage is a good example.

But how are you going to stop Ultrasonics? Here is how. The acoustic impedance is defined as Z=rho*v
Fig71.png

Fig72.png

Here is the configuration:

Fig41.png

And I have built a Shielding Carpet.

Fig42.jpg


Close-up view of layers:
Fig43.jpg


You may use this technique to shield a room etc.

Greetings
 
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