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Extracts the ultrasonic information from the collected laser light
Carries the ultrasonic information from the sample to the detection unit
Delivers and collects the laser light from the target
Generates the ultrasonic probing pulse
Acquires and processes the ultrasonic information
Two-axis scanning unit for ultrasonic imaging of test sample
The receiver is at the heart of all laser-ultrasonic systems, extracting ultrasonic information from the collected laser light.
Fast response detection unit based on two waves mixing in a GaAs photorefractive crystal:
The detection laser records the information from the sample surface motion and carries it to the receiver. It’s important to choose the correct amount of laser output power to ensure it matches the application’s requirements, such as:
Tecnar is the world leader in industrial laser ultrasonics for one solid reason: the PDL, our proprietary, high-power, pulsed-detection laser. To this day, the PDL is the only laser of its kind in the world.
The PDL is a high-power laser-ultrasonic detection laser unit based on the long-pulsed amplification of a frequency-stabilized Nd:YAG seed laser, specially designed for laser-ultrasonic applications on rough surfaces:
Medium detection laser unit based on a continuous wave (CW) frequency-stabilized Nd: YAG laser.
For use on prepared surface samples:
Flexible optical system for easy beam delivery and beam collection using large core optical fibres with a simple connection to the detection unit.
Laboratory grade optical probe for delivering detection laser beam and collecting backscattered light:
Robust optical probe for delivering detection laser beams and collecting backscattered light:
The generation laser is the hammer that generates the ultrasonic probing pulse. The stronger the laser, the better the information.
The Marathon™ is a diode-based, high-power, q-switched laser that delivers a fast firing rate with unmatched reliability. This proprietary Tecnar product was specifically designed for use in harsh and difficult environments. Based on diodes rather than flash lamp technology, the Marathon doesn’t require periodic maintenance. From start to finish, the Marathon truly goes the distance for years of trouble-free operation in all kinds of environments.
Sealed and industrial grade enclosure for generation laser adapted for quick attachment to HEP
The hardware module of this package consists of a PC board digitizer with a sampling rate of 125 Msamples/sec., 14 bits ADC and 60 MHz bandwidth.
The software module of this package consists of a proprietary application that enables quick, easy setting of the digitizer board, real-time view of acquired waveform and storage in an easy-to-access file format.
Tecnar offers an optional scanning unit for the laser-ultrasonic imaging of small-sized defects. The motorized scanning unit provides two-axis scanning over a range of 100 mm x 100 mm. The scanning unit is mounted on a breadboard and supplied with a support for Tecnar’s laser UT probes.
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