Aerospace Industry Applications

Immersion Tanks

Immersion Tank Upgrades

A passive upgrade involves adding an ultrasonic imaging system and encoders. The encoders monitor the motion of the existing controller, and signal the imaging system to acquire UT data via a pulse-on-position relationship. Effectively, the passive upgrade “goes along for the ride” and captures data based upon a predetermined data grid.

An active upgrade goes one step beyond a passive upgrade by replacing the existing motion control system. In this manner, the entire data acquisition and motion control system becomes upgraded to the current IntraSpect™ technology.

The active upgrade consolidates operator actions in an easy-to-use Graphical User Interface.

New Immersion Tanks

An Immersion Tank scanning system was designed for the AMDATA product line. The Immersion tank scanner subsystem is a stand-alone add-on containing all the mechanics and electronics. The scanner subsystem add-on can be placed over an existing tank or a new tank. The scanner subsystem only needs a network connection to the IntraSpect Acquisition/Analysis System workstation. Some specifications:

  • 5 Axis: X & Y axes, with a Z mast containing gimbal and swivel axes. The axes are designed to allow scanning of complex contoured parts.
  • Optional Turntable axis designed for inspecting complex bodies of revolution.
  • Velocity Knob Control Pendant

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Hidden Corrosion

The San Antonio – Air Logistics Command at Kelly AFB wanted a state-of-the-art system which was optimized for performing non-destructive inspection (NDI) of large area aircraft structures.

Planned applications included fuselage exams, leading edge slat exams, pylon side panel exams, and engine cowl exams. System performs large area UT, ET, and mechanical impedance testing.

Major components include a two-axis scanner, a portable data acquisition/analysis station, and a motion control system.

Rivet Cracks

Crack detection near rivets is complicated by the fact that the rivet itself produces a signal that is very similar to one produced by a crack. Since cracks are perpendicular to the rivet, the response from a crack will be shifted by 180º from the rivet signal.

To solve this problem, an Eddy Current technique using a custom designed driver-pickup probe was used.

One of the features of this custom probe is that the phase response of a signal is determined by the orientation of the defect being detected.

For this application, vertical notches will provide a positive going response while horizontal notches will provide a negative going response.