Hands-free ultrasonic test view (HF-UTV)

• US 5,476,010 A
• Filed: 12/14/1994
• Issued: 12/19/1995
• Est. Priority Date: 07/14/1992
• Status: Expired due to Term

• Current Assignee: Sierra Matrix, Inc.
• Original Assignee: Sierra Matrix, Inc.
• Inventors: Fleming, Marvin F., Hersh, Samuel
• Primary Examiner(s): Williams, Hezron E.
• Assistant Examiner(s): Finley, Rose M.
• Application Number:
  US08/357,972
• Time in Patent Office: 370 Days
• Field of Search: 73/579, 73/620, 73/866.3, 73/627, 73/629, 73/633, 340/705, 340/825.1, 340/825.11, 340/825.12, 340/825.13, 340/825.14, 340/825.15, 340/980
• US Class Current: 73/620
• CPC Class Codes: G01N 2291/044 Internal reflections (echoes), e.g. on walls or defects
• CPC Class Codes: G01N 29/0609 Display arrangements, e.g. colour displays indicating or recording in connection with measuring in general G01D
• CPC Class Codes: G01N 29/0627 Cathode-ray tube displays in general G01R13/20
• CPC Class Codes: G01N 29/0645 Display representation or displayed parameters, e.g. A-, B- or C-Scan
• CPC Class Codes: G01N 29/069 Defect imaging, localisation and sizing using, e.g. time of flight diffraction [TOFD], synthetic aperture focusing technique [SAFT], Amplituden-Laufzeit-Ortskurven [ALOK] technique
• CPC Class Codes: G01N 29/265 by moving the sensor relative to a stationary material
• CPC Class Codes: G01N 29/449 Statistical methods not provided for in G01N29/4409, e.g. averaging, smoothing and interpolation

Abstract

A self-contained, portable, hands free, one man ultrasonic test view is disclosed. The system can include a variety of features including a semiautomatic scanner for positioning a probe at various locations within a selected region of a specimen that is powered only in one axis with the second axis being manually advanceable by the user. A second feature is a display that is mountable in front of one eye so that the user of the system can simultaneously view the displayed ultrasonic response signal with one eye while viewing the specimen with the other eye to mentally superimpose the one on the other. Another feature is the inclusion in the processor of a voice recognition device to detect and translate voice commands to select and control the operations of the processor together with a microphone for the user to deliver voice commands to the system. Yet another feature is the inclusion in the processor of memory devices capable of storing the returned and corresponding processed signals and the system set-up parameters for later use. There is also a battery power subsystem to make the system fully portable.

Claims

1. An ultrasonic test view system for performing non-destructive testing of a specimen of engineered materials and structures under control of a single user operator at a test site comprising:

a scanner under control of said single user operator to transmit ultrasonic signals to, and to detect returning ultrasonic signals from, a selected area of said specimen;

a processor under control of said single user operator coupled to said scanner to control said system and to process said returning signals detected by said scanner to produce a resultant scanned response signal; and

a hands-free display under control of said single user operator coupled to said processor to display an image of said resultant scanned response signal, said display being mountable in front of an eye of said single user operator of said system to permit simultaneous viewing of said specimen and said image of said resultant scanned response signal by said single user operator.

2. An ultrasonic test view system as in claim 1 wherein said display projects said image of said resultant scanned response signal onto the retina of said an eye of said single user operator simultaneously with said single user operator viewing the selected area of the specimen being inspected to mentally create a view of the selected area being inspected with the image of the resultant scanned response signal superimposed thereon creating a composite visual display that appears to the single user operator as though the displayed image of the resultant scanned response signal is a transparent overlay on the selected area being inspected.

3. An ultrasonic test view system as in claim 1 wherein said display projects said image of said resultant scanned response signal onto the retina of said an eye of the single user operator simultaneously with said single user operator viewing the selected area of the specimen being inspected to mentally create adjacent views of the selected area being inspected and the image of the resultant scanned response signal creating a composite visual display.

4. A method for simultaneously viewing of a specimen which is being scanned and the resultant scanned response from that specimen by a human user, said method comprising the steps of:

a. viewing said specimen being scanned with an eye of said user; and

b. projecting said resultant scanned response onto the retina of an eye of the user for producing a mental picture of said specimen with said resultant scanned response.

5. A method for simultaneously viewing of a specimen as in claim 4 wherein in step b. said mental picture is of said specimen adjacent said resultant scanned response.

6. A method for simultaneously viewing of a specimen as in claim 4 wherein in step b. said mental picture is of said specimen overlaying said resultant scanned response.