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Take you to understand the laser rangefinder diffuse reflection problems
Usually in order to reduce errors, laser rangefinders will be placed on the measured end of a reflective surface, to reduce the diffuse reflection of the formation of errors, snipers with a telescopic laser rangefinders how to overcome this problem?It works in much the same way as sonar, but can signals that receive reflected light be easily interfered with by other wavelengths and intensifies of light in the environment?
Laser rangefinder (pulse) detection device generally used avalanche photodiode, it is only sensitive to a specific wavelength of light, wavelength matching if very small light intensity can be detected by it, wavelength mismatch, even if the light intensity is very large, can not be detected.The laser just has the good monochromatic characteristic, the commonly used wavelength is 905nm.So signals that receive reflected light are not simply interfered with by other wavelengths and intensives of light in the environment.
There are two kinds of laser ranging methods commonly used: pulse method and phase method.
The phase method measures the distance by measuring the phase deviation of the returned wave. This requires the cooperative target, which is said to put a reflection surface on the measured end. In this case, the range finder emits less power.
Snipers with telescopic laser rangefinder is generally used by the pulse method, that is, to announce a pulse, start timing, receiving the reflected pulse stop timing, achieve the purpose of ranging.In this case, when there is no cooperative target, the loss of diffuse reflected light wave energy is very serious, but generally does not affect the measurement.The reasons are stated above.Generally, the transmitting power of rangefinder will be increased to make certain compensation.
Laser rangefinder can effectively prevent the tower from tipping
Technology and the information age have narrowed the distance between people and countries.Nothing seems to hinder the relationship between the two relationships, but it is in production.Distance measurement is still a difficult problem to solve.For example, in the construction industry, tower crane is one of the most commonly used mechanical equipment.
Tower cranes usually have larger lifting capacity, larger working range and higher lifting height.It can realize the longitudinal and lateral transport of materials, and has been widely used in the construction industry.This large mechanical equipment is used in construction.This process does have its irreplaceable role.Help construction projects complete quickly and easily.
Tower crane is a tower crane structure.This type of equipment is very complex and involves high-altitude work, so it is likely that tower cranes will tip over.On the one hand, these accidents will affect the construction progress of the project, and on the other hand, it will bring huge loss of life and property to the country and people.Therefore, in order to ensure safety and minimize the loss of life and property, laser rangefinders are needed.Auxiliary equipment is used for detection and laser ranging is used for distance measurement.The state also has relevant provisions, tower crane equipment must be equipped with qualified testing equipment to pass the inspection.
Both products have their advantages and disadvantages. Although the tower crane has the disadvantage of being easy to tip over in the process of use, its strong bearing capacity still has an irreplaceable position in the construction industry. Is one of the common equipment.All products are found unsuitable in the process of use, and then they are improved to become more suitable products for our use.The same is true of tower cranes.In order to solve the problem of tower crane prone to tip over, adding laser rangefinder and using laser rangefinder to prevent tilt is the most commonly used method to solve this problem, which has been widely used now.The application has been proved to be practical in practice.