How is hypersound (7 ghz +) produced?

Subject: How is hypersound (7 ghz +) produced?

Date: Sat Jun 30 23:06:09 2001
Posted by Arkane
Grade level: 10-12 School: Some College
City: Olympic city 2000 State/Province: No state entered. Country: Australia
Area of science: Engineering
ID: 993956769.Eg

Message:


Hi, i'm just curious in how sound frequencies of up to 7 GHZ are produced.
is that done with a very high frequency AC current? Is there a way to convert 
Very high frequency Ac current into even higher frequency sound? The highest 
frequency AC current that i can think of is in order of 3 KHz, which is no 
where near sound when used with quartz. Anyway, how can i use a very High RPM 
motor to generate Very high Frequency hypersound? 7Ghz +
did a search on hypersound, but nothing on how it is created.

Re: How is hypersound (7 ghz +) produced?

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