Measuring and testing – Vibration – By mechanical waves
Patent
1990-11-21
1993-03-02
Chapman, John E.
Measuring and testing
Vibration
By mechanical waves
73628, G01N 2910
Patent
active
051899159
ABSTRACT:
An ultrasonic inspection apparatus is adapted for utilizing both pitch/catch and pulse/echo information obtained utilizing a single mode of wave propagation. The apparatus includes an ultrasonic signal transmitting assembly, a signal receiving assembly, a positioning mechanism, and an arrangement for recording the information received by the signal receiving assembly. The transmitting assembly includes at least one source transducer for transmitting shear mode ultrasonic search signals into the mass of an object to be inspected. The signal receiving assembly receives shear mode ultrasonic catch signals that are produced as the ultrasonic search signals encounter discontinuities in the mass of the object to be inspected and are directed toward and detected by at least one catch transducer. The signal receiving assembly also receives shear mode ultrasonic echo signals that are directed back to a first source transducer. The position determining mechanism is adapted for controlling the position of each source transducer and each catch transducer and for keeping track of the exact position of each transducer as the transducers send and/or receive ultrasonic signals so that signals from common discontinuities may be grouped together or correlated. The recording device records the ultrasonic signals received by the signal receiving assembly in a form that enables the signals to be analyzed to help characterize the acoustic discontinuities in the mass of the object being inspected.
REFERENCES:
patent: 3508436 (1970-04-01), Krautkramer
patent: 3600613 (1971-08-01), Clarke
patent: 3683680 (1972-08-01), Johnson et al.
patent: 3712119 (1973-01-01), Cross et al.
patent: 3820387 (1974-06-01), Grabendorfer et al.
patent: 3845463 (1974-10-01), Timbs
patent: 3942361 (1976-03-01), Rath et al.
patent: 3952581 (1976-04-01), Gottelt
patent: 3960006 (1976-06-01), Smith
patent: 3999422 (1976-12-01), Lehmann et al.
patent: 4304134 (1981-12-01), Rouse et al.
patent: 4453410 (1984-06-01), Schmitz et al.
patent: 4523468 (1985-06-01), Derkacs
Larsen Ronald E.
Leon-Salamanca Teodoro
Monaco Michael C.
Reinhart Eugene R.
Chapman John E.
Reinhart & Associates, Inc.
LandOfFree
Single mode ultrasonic inspection method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Single mode ultrasonic inspection method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single mode ultrasonic inspection method and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-120071