Amplitude sorting of oscillatory burst signals by sampling
Patent
·
OSTI ID:862763
- Richland, WA
A method and apparatus for amplitude sorting of oscillatory burst signals is described in which the burst signal is detected to produce a burst envelope signal and an intermediate or midportion of such envelope signal is sampled to provide a sample pulse output. The height of the sample pulse is proportional to the amplitude of the envelope signal and to the maximum burst signal amplitude. The sample pulses are fed to a pulse height analyzer for sorting. The present invention is used in an acoustic emission testing system to convert the amplitude of the acoustic emission burst signals into sample pulse heights which are measured by a pulse height analyzer for sorting the pulses in groups according to their height in order to identify the material anomalies in the test material which emit the acoustic signals.
- Research Organization:
- BATTELLE MEMORIAL INSTITUTE
- DOE Contract Number:
- AC06-76RL01830
- Assignee:
- Battelle Memorial Institute (Columbus, OH)
- Patent Number(s):
- US 4006625
- OSTI ID:
- 862763
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/73/327/
according
acoustic
acoustic emission
acoustic signal
acoustic signals
amplitude
amplitude sorting
analyzer
anomalies
apparatus
burst
burst envelope
burst signal
burst signals
convert
described
detected
emission
emit
envelope
envelope signal
fed
height
height analyzer
heights
identify
intermediate
material
maximum
measured
method
midportion
oscillatory
oscillatory burst
output
produce
proportional
provide
pulse
pulse height
pulse output
pulses
sample
sample pulse
sampled
sampling
signal
signal amplitude
signals
sorting
testing
according
acoustic
acoustic emission
acoustic signal
acoustic signals
amplitude
amplitude sorting
analyzer
anomalies
apparatus
burst
burst envelope
burst signal
burst signals
convert
described
detected
emission
emit
envelope
envelope signal
fed
height
height analyzer
heights
identify
intermediate
material
maximum
measured
method
midportion
oscillatory
oscillatory burst
output
produce
proportional
provide
pulse
pulse height
pulse output
pulses
sample
sample pulse
sampled
sampling
signal
signal amplitude
signals
sorting
testing