Zhengzhou Megumi instrumentation supply laser rangefinder 50 m, 100 m, 200 m full range of price promotions, laser range finder works is what? The laser rangefinder generally two ways to measure the distance: pulse method and the phase method. The pulse method Ranging process is this: rangefinder laser emitted by the measurement object's reflection and then rangefinder receiver, range finder laser and from the time recorded at the same time. Half the product of the speed of light and the round trip time, that is, the range finder and the distance of the object being measured between. Pulse method of measuring distance accuracy / - 1 meters. In addition, this type of rangefinder measuring blind spots generally is about 15 meters. Why laser rangefinder so-called \ \ \ "safe \ \ \" and \ \ \ "unsafe \ \ \" the difference? As the name suggests, laser rangefinder with a laser as the primary material to work. Currently, handheld laser rangefinder on the market work material mainly the following: the operating wavelength of 905 nm and 1540 nm semiconductor laser operating wavelength of 1064 nm YAG laser. The 1064 nm wavelength is detrimental to human skin and eyes, especially if the eyes accidentally come into contact with the 1064 nm wavelength laser, eye damage may be permanent. So, in a foreign country, handheld laser rangefinder completely banned the 1064 nm laser. In the country, some manufacturers still produce 1064 nm laser rangefinder. 905 nm and 1540 nm laser rangefinder, we call it \ \ \ security \ \ \ ". For 1064 nm laser rangefinder, because of its potentially harmful to the human body, so we call it \ \ \ "unsafe \ \ \". Laser range finder application in case handling traffic police learned from the Traffic Management Bureau, starting today, can effectively improve the traffic accident scene investigation the efficiency and accuracy of the laser rangefinder will be widely used in traffic police in handling the case, this-marked case handling traffic police will from this bid farewell to long-term use of a tape measure traffic accident scene "backward state". It is understood that, investigators traffic police the handheld "Lycra PLUS type" the laser rangefinder targeting touch of the accident scene data can get. The laser range finder as auxiliary equipment accident scene mapping system, the on-site measurement data and related information automatically via Bluetooth wireless communications to enter the portable computer, to borrow a computer high-speed data computing and graphics processing functions, fast mapping of the standardized, accurate traffic accidents The field scale drawing and automatically generated scene investigation transcripts, greatly improving measurement speed and accuracy. The laser rangefinder has a small size, light weight, easy to carry, and other characteristics, distance measuring range of 0.2 m to 200 m, and the measurement accuracy of plus or minus 1.5 mm. Zhengzhou Megumi Instrument Co., Ltd., Zhengzhou City, West Street, 19th Floor, Sun and Moon Star City the A3 sales manager: the DU workers 13017693918 Telephone Fax 0371 -66,227,105