What are the applications of laser rangefinders?
Application of laser range finder in traffic police handling cases
I learned from the Traffic Management Bureau that from today onwards, the laser rangefinder, which can effectively improve the efficiency and accuracy of traffic accident scene investigation, will be widely used in traffic police handling cases, which marks that traffic police will bid farewell to the long-term use of tape measure to measure traffic accident scenes. "Backward state".
It is understood that the traffic police who handle the case can hold the "Leica PLUS" laser rangefinder to aim at the target and press it lightly, and the data on the scene of the traffic accident can be obtained. As an auxiliary equipment for the surveying and mapping system on the scene of traffic accidents, the laser rangefinder automatically inputs the on-site measurement data and related information into the portable computer through Bluetooth wireless communication, and uses the computer's high-speed data calculation and graphics processing functions to quickly survey and map out standardized and accurate traffic accidents. The on-site scale map and the automatic generation of on-site investigation records greatly improve the measurement speed and accuracy. The laser range finder has the characteristics of small size, light weight, and easy to carry. The range of distance measurement is 0.2 meters to 200 meters, and the measurement accuracy is plus or minus 1.5 mm.
Precautions for using laser range finder
DISTO and other handheld laser rangefinders use lasers for distance measurement, and the pulsed laser beam is a monochromatic light source with very concentrated energy, so do not look directly at the launch port when using it, and do not observe with an aiming telescope Smooth reflective surface, so as not to hurt people's eyes. Be sure to measure according to the safe operation specification in the instrument manual. When measuring in the field, do not point the launch port of the instrument directly at the sun to avoid burning out the photosensitive element of the instrument.
The above has briefly introduced some measurement functions of the instrument by taking the DISTO instrument as an example. The function keys of the handheld laser rangefinder produced by different manufacturers have slight similarities and differences, but as long as you read the instruction manual carefully, you will give full play to the handheld laser rangefinder in house construction. Role in area measurement and other precision engineering measurements.
Application of handheld laser range finder in house measurement
House surveying has always been a work that the housing management department cares about and bothers. The house survey and survey area map is directly used as an attachment to the property right certificate and has legal effect. It is not only directly facing the people, but also directly related to the economic interests of the people, so the control of the measurement error of the house is particularly important. According to the past habits, use a tape measure or a steel tape to measure the building area and the usable area, although it can also meet the basic requirements. However, there are large errors in the measurement of long-distance, high-level, and difficult-to-reach places, and there are shortcomings such as labor-intensive and complicated work. Today, with the rapid development of high-tech, such primitive and traditional measurement methods have become It obviously does not meet the fast and efficient requirements of today's information society. For this reason, after introducing two Leica handheld laser rangefinders, after several months of actual use, it is generally believed that the instrument is especially suitable for the measurement of buildings with complex building structures, middle and high-rise buildings, and long distances. Easy to use, accurate measurement data (three millimeters accuracy), improved work efficiency (non-contact measurement), completely abandoned the method of measuring houses with a tape (or steel tape), reduced surveying errors, and ensured the accuracy of area measurement. The measurement results make the owners more convinced. Of course, the instrument also has aspects that need to be improved urgently. For example, under strong sunlight, long-distance target objects are difficult to see clearly, and accessories such as telescopes are needed. In addition, it is laborious to calibrate the level bubble for each measurement, and it is better to automatically calibrate. In short, the instrument is still popular with us.
