Maryland's Defense Patent Database

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Floating ultrasonic transducer inspection system and method for nondestructive evaluation

Patent image
ARL

A method for inspecting a structural sample using ultrasonic energy includes positioning an ultrasonic transducer adjacent to a surface of the sample, and then transmitting ultrasonic energy into the sample. Force pulses are applied to the transducer concurrently with transmission of the ultrasonic energy. A host machine processes ultrasonic return pulses from an ultrasonic pulser/receiver to quantify attenuation of the ultrasonic energy within the sample. The host machine detects a defect in the sample using the quantified level of attenuation. The method may include positioning a dry couplant between an ultrasonic transducer and the surface. A system includes an actuator, an ultrasonic transducer, a dry couplant between the transducer the sample, a scanning device that moves the actuator and transducer, and a measurement system having a pulsed actuator power supply, an ultrasonic pulser/receiver, and a host machine that executes the above method.

Inventors: 
Zalameda, Joseph N.; Johnston, Patrick H.
Patent Number: 
Technical domain: 
Sensors and Measurement
FIle Date: 
2012-07-25
Grant Date: 
2016-05-31
Grant time: 
1,406 days
Grant time percentile rank: 
25
Claim count percentile rank: 
5
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US ARMY