LEAsys is the perfect tool for R&D laboratories or research institutions engaged in the nondestructive testing of composites, metals, and adhesive joints. The integrated scanner solution combines the innovative LEA technology with a high-resolution x-y scanner and real-time data analysis software. It enables contact-free high-resolution scans without the need of water or a coupling gel.
The ultrasound signal is generated with XARION’s laser-based excitation technology. XARION’s proprietary optical microphone detects the acoustic signal transmitted or reflected from the sample. Through-transmission as well as single-sided (pitch-catch) measurements can be performed, allowing the detection of internal defects, delamination or porosity in a contact-free manner. For time-sensitive applications, XARION also offers an eight-channel microphone array system.
XARION’s patent-protected sensor technology platform offers substantial advantages:
Laser-Excited Acoustics for Contact-Free Inspection of Aeropace Composites
Material characterization via contact-free detection of surface waves using an optical microphone
Thickness measurement via local ultrasonic resonance spectroscopy
Ultrasound inspection of spot-welded joints
XARION’s latest non-destructive inspection system: a turn-key lab system for Laser-Excited Acoustics. LEAsys!
For the detection of sound waves, conventional microphones use membranes or other moving parts as intermediaries between the incoming acoustic and the resulting electrical quantity. For acoustic ultrasound sensors based on piezoelectric crystals, the approach is similar: the acoustic wave mechanically deforms the crystal. In contrast, the patented idea behind XARION’s Optical Microphone is to exploit another, completely different property of sound: the fact that sound changes the speed of light! In a rigid Fabry-Pérot laser interferometer consisting of two miniaturized mirrors, sound pressure changes the refractive index of the air. This alters the optical wavelength and the light transmission which consequently leads to the respective electrical signal. In contrast to conventional microphones, the Optical Microphone is the world’s first microphone without any moving parts. No mechanically movable or physically deformable parts are involved. By consequence, the sensors exhibit a compelling frequency bandwidth, free from mechanical resonances. The sensor principle is highly sensitive. In fact, refractive index changes below 10-14 can be detected with this technology. This corresponds to pressure changes as small as 1 µPa.
Copyright © – 2023 mitssolutions.asia
Website Design Malaysia
