A long range laser rangefinder is capable of measuring distance up to 20 km; mounted on a tripod with an angular mount.The resulting system also provides azimuth and elevation measurements.A laser rangefinder is a rangefinder which uses a laser beam to determine the distance to an object.
Laser tape measures are alternatives to traditional metal tape measures; they're used to calculate lengths, widths and heights of up to about 650 feet (198 meters). To use a laser tape measure, you place the device on one end of what you want to measure, and then aim the laser beam so that it hits an object at the other end. If there's no wall, pole or anything like that, you can put a target at the spot you want to measure up to SUMMARY A Laser Distance Meter sendsa pulse of laser light to the target and measuresthe time it takesforthe reflection to return.For distances up to 30m, the accuracy isÉ3mm. Isé3mm-on board processing allowsthe device to, add,subtract calculate areas and volumesand to.Triangulate you can measure distances at a. distance But don’t worry –the technology is well established and reliable!A laser distance meter can measure distances of up to 30m with an accuracy of É3mm.é3mm An Ultrasonic Distance meter works on a similar, principle but instead of light it uses sound with a pitch too high for the human ear to. hear 1 Triangulation is a geometric method, useful for distances in the range of ≈ 1 mm to many kilometers. 2  Time-of-flight measurements (or pulse measurements) are based on measuring the time of flight of a laser pulse from the measurement device to some target and back again. Some of the most important techniques used for laser distance meters are as follows: 1  A long range laser rangefinder is capable of measuring distance up to 20 km; mounted on a tripod with an angular mount. The resulting system also provides azimuth and elevation measurements. A laser rangefinder is a rangefinder which uses a laser beam to determine the distance to an object. The more powerful models of rangefinders measure distance up to 25 km and are normally installed either on a tripod or directly on a vehicle or gun platform. In the latter case the rangefinder module is integrated with on-board thermal, night vision and daytime observation equipment. Laser Distance Measuring Tools, also known as Electronic Tape Measures, Laser Distance Finders or Digital Measuring Devices, offer true laser light (not sound) for the most accurate measuring.  Laser Entfernungsmesser image by Otmar Smit from Fotolia.com. A laser distance meter works by use measuring the time it takes a pulse of laser light to be reflected off a target and returned to the sender. Operating Principle. A laser distance meter emits a pulse of laser at a target. The pulse then reflects off the target and back to the sending device (in this case, a laser distance meter). The laser beam is used to measure the distance to the first object on its path. Laser rangefinders are used extensively in 3-D object recognition, 3-D object modelling, and a wide variety of computer vision-related fields. The more powerful models of rangefinders measure distance up to 25 km and are normally installed either on a tripod or directly on a vehicle or gun platform. In the latter case the rangefinder module is integrated with on-board thermal, night vision and daytime observation equipment. The generated light energy has a wavelength of approximately 900 nanometers, with a beam divergence of 3 milliradians-equal to a beam width of roughly 0.3 m at 100 m or likewise, 3 ft at 1000 ft. Laser Technology products calculate distance by measuring the time of flight of very short pulses of infrared light.  Laser Radar. A laser radar is a device which uses one of the distance measurement techniques as described above, and scans the direction of the distance measurement in two dimensions. This allows the acquisition of an image, or more precisely a depth profile of some object, as required e.g. in robotics. Some of the most important techniques used for laser distance meters are as follows: 1  Triangulation is a geometric method, useful for distances in the range of ≈ 1 mm to many kilometers.
http://home.howstuffworks.com/laser-tape-measure.htm http://www.transcat.com/media/pdf/cordex-laser-distance-meters.pdf https://www.rp-photonics.com/distance_measurements_with_lasers.html https://en.wikipedia.org/wiki/Laser_rangefinder http://www.engineersupply.com/Laser-Measurers.aspx http://www.ehow.com/about_6332366_do-laser-distance-meters-work_.html https://en.wikipedia.org/wiki/Laser_rangefinder http://www.lasertech.com/How-Lasers-Work.aspx https://www.rp-photonics.com/distance_measurements_with_lasers.html
how does laser measure distance