METHOD AND APPARATUS FOR VIBRATION SENSING AND ANALYSIS
First Claim
1. A method for sensing and measuring stress waves, comprising:
- a.) sensing motion, where said motion comprises a stress wave component and a vibration component;
b.) separating said stress wave component from said vibration component with a high pass filter to create a signal proportional to said stress wave;
c.) amplifying said signal to create an amplified signal;
d.) processing said amplified signal with a sample and hold peak detector over a predetermined interval of time to determine peaks of said amplified signal over said predetermined period of time;
e.) creating an output signal proportional to said determined peaks of said amplified signal; and
, f.) repeating steps d.) and e.).
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Accused Products
Abstract
A method and apparatus for sensing and measuring stress waves. The method comprises the steps of: a.) sensing motion, where the motion comprises a stress wave component and a vibration component; b.) separating the stress wave component from the vibration component with a high pass filter to create a signal proportional to the stress wave; c.) amplifying the signal to create an amplified signal; d.) processing the amplified signal with a sample and hold peak detector over a predetermined interval of time to determine peaks of the amplified signal over said predetermined period of time; e.) creating an output signal proportional to the determined peaks of the amplified signal; and, f.) repeating steps d.) and e.). The invention also includes an apparatus for implementing the method of the invention.
159 Citations
13 Claims
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1. A method for sensing and measuring stress waves, comprising:
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a.) sensing motion, where said motion comprises a stress wave component and a vibration component;
b.) separating said stress wave component from said vibration component with a high pass filter to create a signal proportional to said stress wave;
c.) amplifying said signal to create an amplified signal;
d.) processing said amplified signal with a sample and hold peak detector over a predetermined interval of time to determine peaks of said amplified signal over said predetermined period of time;
e.) creating an output signal proportional to said determined peaks of said amplified signal; and
,f.) repeating steps d.) and e.). - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for sensing and measuring stress waves, comprising:
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a.) means for sensing motion, where said motion comprises a stress wave component and a vibration component;
b.) means for separating said stress wave component from said vibration component to create a signal proportional to said stress wave;
c.) means for amplifying said signal to create an amplified signal;
d.) means for processing said amplified signal with a sample and hold peak detector over a predetermined interval of time to determine peaks of said amplified signal over said predetermined period of time;
e.) means for creating an output signal proportional to said determined peaks of said amplified signal; and
,f.) means for repeating steps d.) and e.). - View Dependent Claims (9, 10, 11, 12, 13)
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Specification