Method and apparatus for detecting variations in a process by pr

Details Method and apparatus for detecting variations in a process by pr Method and apparatus for detecting variations in a process by pr

1989-10-06

1991-04-09

Williams, Hezron E.

Measuring and testing

Vibration

By mechanical waves

73602, 73646, 73801, 73577, 73658, G06F 1546

Patent

active

050054155

ABSTRACT:
An apparatus for processing acoustic emissions or stress waves in order to recognize features indicative of variations in the process producing the acoustic emissions. The apparatus comprises a transducer acoustically coupled to a machine or industrial process and arranged to detect the acoustic emissions and produce an electrical signal. The electrical signal is amplified by an amplifier and the mean level of the electrical signal is measured by a mean level detector and the minimum level of the electrical signal is measured by a minimum level detector. A ratio measurer measures the ratio of the mean level of the electrical signal to the minimum level of the electrical signal. This method is self compensating for variations in the operating conditions of the machine or industrial process, is not significantly affected by electromagnetic switching transients, and can cope with very high numbers of transient excursions.

REFERENCES:
patent: 4209779 (1978-03-01), Beck et al.
patent: 4609994 (1986-09-01), Bassim et al.

Affiliated with

Also associated with

Rating

Method and apparatus for detecting variations in a process by pr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for detecting variations in a process by pr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for detecting variations in a process by pr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2025630