Amplitude sorting of oscillatory burst signals by sampling

Patent · Sat Jan 01 00:00:00 EST 1977

OSTI ID:862763

Davis, Thomas J ^[1]

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1. 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, Columbus, OH (United States)
• 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

Related Subjects

amplitude
sorting
oscillatory
burst
signals
sampling
method
apparatus
described
signal
detected
produce
envelope
intermediate
midportion
sampled
provide
sample
pulse
output
height
proportional
maximum
pulses
fed
analyzer
acoustic
emission
testing
convert
heights
measured
according
identify
material
anomalies
emit
sample pulse
pulse output
pulse height
acoustic signals
acoustic emission
acoustic signal
burst signals
signal amplitude
envelope signal
height analyzer
oscillatory burst
burst envelope
burst signal
amplitude sorting
/73/327/