Request InfoRiegl USA Inc.Riegl USA is offering the LD 90-3-GF series of pulsed laser rangefinders for low-level altimetry applications. Providing fast and accurate ground-to-aircraft distance measurements, these devices can measure from 3 to 5280 ft with accuracies as high as ±1 in. Benefits include narrow measurement beam, immunity to electromagnetic and acoustic interference, low maintenance and easy installation without calibration. Applications include ground profiling, sink speed measurement and navigational support for automated flying and landing maneuvers.See full productRelated content from Photonics MediaPRODUCTSBioPhotonics Nov/Dec 2022 IssueParticle Image Velocimetry SystemA Particle Image Velocimetry (PIV) system has been announced by Microvec Pte. Ltd., designed for measurements in air and water with velocities of up to 200 m/s. 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