Laser through-beam sensors feature high-accuracy optics that operate to 50 m and have a switching frequency of 5 kHz. The device's narrowly focused beam allows detection of very small objects. A ...
Earthquake damage: the system uses lasers shone from the ceiling to detectors on the floor to measure interstorey drift. (Courtesy: Diana Swantek/Berkley Lab) A low-cost, laser-based sensor that can ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results