Method for location of shocks with a structure-borne sound monit

Details Method for location of shocks with a structure-borne sound monit Method for location of shocks with a structure-borne sound monit

1988-02-01

1990-01-30

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Distance or direction finding

With time interval measuring means

367124, 367907, 73572, G01S 380

Patent

active

048978230

ABSTRACT:
A method for the location of shocks with a structure-borne sound monitoring system is used especially for pressurized enclosures in power plants, particularly nuclear power plants. Structure-borne sound monitoring systems were heretofore dependent upon assumptions regarding the propagation velocities of the structure-borne sound sensors. According to the invention an exact method of ascertaining the propagation velocities and the burst location is given. The invention begins with the realization that the frequency spectrum of the respective bursts of information for clarification of the dispersion behavior, for identifying the sound wave modes and for deriving the group velocity of these modes is self-evident. Burst signal-rise time differences, wave modes, especially s.sub.0 and a.sub.0 mode, as well as the pertaining group velocities are then ascertained. The sound travel distance from the burst location to the sturcture-borne sound-sensors are determined on the basis of fact with at least double redundancy based on the general relationship

REFERENCES:
Techniches Messen, vol. 47, No. 12, 1980, pp. 427-434, Munchen, (J. Kolerus): "Acoustics Emission Analysis, Part 2, Method and Apparatus", p. 427, right column, line 22-p. 428 left column, line 16; pp. 431, 432, Section 2, Picture 6-8, are pertinent.
VDI Berichte No. 568 (1985), pp. 13-18, is pertinent.
Technical Review, No. 2, 1981, pp. 3-42, Narum, KDK; H. J. Rindorf; "Acoustics Emission Source Location in Theory and in Practice", pp. 9, line 14-p. 24, line 23 are pertinent.
B. J. Olma, Progress in Nuclear Energy, 1985, vol. 15, pp. 583 through 594 are pertinent.

Affiliated with

Also associated with

Rating

Method for location of shocks with a structure-borne sound monit 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 for location of shocks with a structure-borne sound monit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for location of shocks with a structure-borne sound monit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1927933