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1. INTRODUCTION
First and foremost we at NDT Systems, would like to thank you for your purchase of the ALL
NEW
Curlin- AIR
, portable airborne ultrasonic flaw detector.
The Curlin-AIR has been designed for airborne non-contact or dry-coupled contact ultrasonic flaw
detection applications when used in conjunction with a special AT1 ultrasonic transducer.
The Curlin-AIR’s application is for nondestructively inspecting low-density materials, such as
polyurethane foam and other porous materials. It is not intended for inspecting high-density materials,
such as metal castings, plates, welds, or thick solid plastic (NDT Systems, standard QUANTUM TE
flaw detector is a better choice for these applications).
The primary mode of operation for the Curlin-AIR is
through-transmission
, using separate transmitting
and receiving transducers mounted in opposition on a hand held “yoke” (for scanning the material).
Used, in this fashion, the ultrasonic beam is transmitted through the material and detected on the
opposite side. Flaws are typically indicated by their property to “block/reflect” the transmission of the
ultrasonic beam (they tend to greatly reduce the “normal” signal amplitude).
In addition to the detection of localized flaws, the Curlin-AIR should also respond to density variations
in the material (sensitivity a function of the material type and degree of variation).
This manual serves two purposes. 1) Quick Reference and 2) Tutorial.
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The Table of Contents of this manual is actually a TABLE/INDEX. Each menu item is mentioned
here for quick easy access to a description of the menu item you may have a question with.
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Anywhere you are in the Curlin AIR’s menu you can get a description of the feature and how to
use it with a simple keystroke. Just highlight the menu item you want to use or have question
with and then press the SEL/HELP key for about 1 second.
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Chapter 2 deals with the menu, structure, and description of the features. This would be
recommended reading. There are quite a few images to help you better understand the
concepts.
Again, thank you for your purchase of the Curlin -AIR.
Basic System Components
The basic through-transmission system consists of.
•
Curlin-AIR
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Two coaxial cables (flexible, heavy duty, small diameter with BNC to BNC connectors)
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One pair of identical AT1 transducers, interchangeable as a transmitter or receiver).
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One adjustable yoke for manually scanning the transducers.
