Ne vardır lazer telemetre's ölçüm parametreler ve hata?
Lazer menzil bulucu ölçüm menzil
A lazer telemetre is an alet kullanan a kesin parametre of a modüle edilmiş lazer to ölçün the distance to a target. The ölçme aralık of the laser range finder is 3.5~5000 metre.
According to the distance measureing method, it is divided into phase method range finder and pulse method range finder. The pulse laser range finder yayıyor a beam or a series of short pulse laser beams to the target during operation, and the photoelectric element receives the laser reflected by the target. The timer measures the time from launch to reception of the laser beam, and calculates the distance from the observer to the target. The phase method laser rangefinder detect the distance by detecting the phase difference between the emitted light and the reflected light when it propagates in space. The laser range finder is light in weight, small in size, easy to operate, fast and correct, and its error is only one beşte to bir yüzde o o diğer optik range finders. The picture on the right is a typical phase Yöntem Aralık Bulucu ve Darbe Yöntem Telemetre Diyagram.
What is the error of the laser rangefinder
The measurement accuracy is based on ISO/R1938-1971 recommended by ISO, with 95 percent reliable statistics (2s, which is twice the standard deviation). The standard measurement accuracy is the specified measurement error based on the normal measurement environment. Invalid in special application functions and calculations, such as Pythagorean measurement and tracking mode (continuous tracking measurement).
Orada iki yöntem of kullanarak lazer telemetre: darbe yöntem ve faz yöntem.
If the laser rangefinder uses pulse emission, the absolute accuracy is generally low, but it can achieve good relative accuracy for long-distance measurement.
If the laser rangefinder uses phase test, the accuracy can reach plus or minus 1 mm, which the the high among rangefinders.
The error in the accuracy of the laser rangefinder is not proportional to the measured distance, and it is the same over the entire distance. Ancak, for a very long distance, the error will increase by plus /{{{}}ppm (bir milyonuncu birim) ( plus /{-0.5mm/100m).
The doğruluk of the laser telemetre has always been concern by the industry, and some industries need a relatively high-precision laser rangefinder. For medium and long-distance telescope laser rangefinders, the accuracy of the general rangefinder is 1 yard plus {-1. At present, it can becalled a high-precision laser rangefinder, with an accuracy of 7b{{}}%5 yards plus {-1. Bu yüksek hassasiyetli menzil Bulucu Başar An Doğruluk İçinde % 7B% 7B9% 7D% 7D.5 Yarda İçinde 100 Metre.
The ana kaynak of hata in range finders is measurement error. For example, the laser light is blocked or penetrated, the measurement end point is inselected inny, and the distance meter selects the measurement starting point incorrect. Under ideal conditions, the error is small.
