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  2. SIUI - Wikipedia

    en.wikipedia.org/wiki/SIUI

    SIUI develops and manufactures a variety of ultrasound imaging systems and accessories for both human and veterinary use, and NDT equipment including phased-array ultrasonic flaw detector, [3] conventional flaw detector, [4] thickness gauge, probes [5] and accessories. The company is currently organized into three product category divisions ...

  3. Ultrasonic testing - Wikipedia

    en.wikipedia.org/wiki/Ultrasonic_testing

    The first efforts to use ultrasonic testing to detect flaws in solid material occurred in the 1930s. [1] On May 27, 1940, U.S. researcher Dr. Floyd Firestone of the University of Michigan applies for a U.S. invention patent for the first practical ultrasonic testing method.

  4. Lidar traffic enforcement - Wikipedia

    en.wikipedia.org/wiki/LIDAR_traffic_enforcement

    Jeremy Dunn (Laser Technology Inc.) developed a police lidar device in 1989, [3] and in 2004 10% of U.S. sales of traffic enforcement devices were lidar rising to 30% in 2006, [1] given the advantages of lidar it appears likely that the majority of current sales are lidar, although sophisticated radar units are still being sold.

  5. Sperry Rail Service - Wikipedia

    en.wikipedia.org/wiki/Sperry_Rail_Service

    The original plan of Dr. Sperry was to build and sell the rail detector cars, along with the testing services, to the railways. However, the railways were reluctant, so Sperry decided to sell the rail inspection service only. [2] It would lead to more consistent testing, which is done by skilled and experienced personnel.

  6. Best Radar Detectors of 2024 - AOL

    www.aol.com/lifestyle/best-radar-detectors-2024...

    R8 Radar/Laser Detector. The R8 is Uniden's top-of-the-line offering. It can identify threats coming from all four directions thanks to its dual antenna, and you get notified via voice alerts.

  7. Golay cell - Wikipedia

    en.wikipedia.org/wiki/Golay_cell

    The Golay cell is a type of opto-acoustic detector mainly used for infrared spectroscopy. It consists of a gas-filled enclosure with an infrared absorbing material and a flexible diaphragm or membrane. When infrared radiation is absorbed, it heats the gas, causing it to expand. The resulting increase in pressure deforms the membrane.

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    The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.

  9. Everhart–Thornley detector - Wikipedia

    en.wikipedia.org/wiki/Everhart–Thornley_detector

    The E-T secondary electron detector can be used in the SEM's back-scattered electron mode by either turning off the Faraday cage or by applying a negative voltage to the Faraday cage. However, better back-scattered electron images come from dedicated BSE detectors rather than from using the E–T detector as a BSE detector.

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