Thursday, January 31, 2013

green laser pointer can be easily transported

green laser pointer can be easily transported for its light size. 
Laser radar can be classified in accordance with the laser used, the detection and radar function. The lasers used in lidar CO2 laser, Er: YAG laser and Nd: YAG laser, the Raman frequency shift Nd:

YAG laser GaAiAs semiconductor lasers, helium - neon laser and frequency doubling of Nd: YAG lasers. Erbium-doped YAG laser wavelength of about 2 microns, while GaAiAs laser wavelength in the range

of 0.8-0.904 microns. Depending on the detection technology, the lidar can be divided into direct detection and coherent detection type two kinds. Which direct detection laser radar using pulse

amplitude modulation (AM), and does not require interferometer.green laser pointer might be damaged during shipping process.
Airborne LIDAR measurement system composed of airborne laser scanning system to measure the composition of the platform, the laser system, attitude measurement, and navigation systems, digital

cameras, computers and software from the sky. The aerial survey platform aerial survey platform is air laser scanning system operating space vector and operating platforms, helicopters or other

aircraft, used to load a variety of instrumentation and operator of the aviation laser scanning system. Attitude measurement and navigation system font selection: GPS receiver, IMU inertial

guidance instrument, navigation computers constitute the attitude measurement and navigation system. GPS receiver with differential positioning techniques to determine the coordinates of the

platform. Time interval according to the

laser transmitter to the receiver can accurately measure the distance from the sensor to ground. The parameter setting of green laser pointer is reasonable.The leaders in the green laser pointer

company lay much importance on the quality assurance
Inertial measurement. When the aircraft is in flight, the inertial measurement unit and also the aircraft's flight attitude measurement, and the relevant data of the laser scan mirror scanning

angle with the record on tape. Digital camera. Using digital camera to shoot, you need to control the recording time interval and the filming location. GPS system time and position control. Data

transmission. Airlines flying data acquisition after the end of all of the laser scanning measurement data, the digital image data, GPS data and inertial measurement data are transmitted to the

computer to prepare for the subsequent data processing.

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