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LLNL’s Optically-based Interstory Drift Meter System provides a means to accurately measure the dynamic interstory drift of a vibrating building (or other structure) during earthquake shaking. This technology addresses many of the shortcomings associated with traditional strong motion accelerometer based building monitoring.

LLNL’s discrete diode position sensitive device is a newly…

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This technology provides algorithms that accurately localize small-arm-fire by tracking bullets from high-powered weapons, automatic rifles, rocket propelled grenades (RPGs), mortars, and similar projectiles. The software integrates commercially available infrared video cameras, processes raw imagery data, detects and tracks projectiles, and determines the location of the shooters within…

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The invention relates to a measurement method and system for capturing both the amplitude and phase temporal profile of a transient waveform or a selected number of consecutive waveforms having bandwidths of up to about 10 THz in a single shot or in a high repetition rate mode. The invention consists of an optical preprocessor which can then output a time-scaled replica of the input signal to…

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LLNL researchers have combined Raman and infrared (IR) spectroscopy methods in a single device. The sensor is able to detect, identify, and quantify a range of unknown gases. Raman spectroscopy records the degree of light scattered while IR measures the amount of light that is absorbed. The combination of the two techniques results in complementary spectra that serve as molecular-level…

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This technology is an extremely small and robust cell in which a very small volume of gas is sampled, while maintaining high sensitivity and specificity, by combining it with:

  • Highly tunable and commercially available semiconductor lasers, such as edge emitting lasers and vertical cavity surface emitting lasers (to provide various absorption lines of one specie and to capture…