Knock Knock

[Bruce Bowling]

Here's a question I have always wondered about......

How do the microphinic knock sensors work?  Do they 
put out a signal proportional to the "knock"?
Are they narrow-band devices tuned to the frequency
that the knock generates?

I have always wanted to know!



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               Bruce A. Bowling
  Staff Scientist - Instrumentation and Controls
 The Continuous Electron Beam Accelerator Facility
    12000 Jefferson Ave - Newport News, VA 23602
                 (804) 249-7240
               bowling at cebaf.gov
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