What Is The Error Of The Laser Distance Meter
The measurement accuracy is based on ISO/R1938-1971 recommended by ISO, with a 95% reliable statistic (2s, which is twice the standard deviation). The standard measurement accuracy is based on the specified measurement error in the ordinary measurement environment. It is ineffective in special application functions and calculations, such as Pythagorean measurement and tracking mode (continuous tracking measurement).
There are two ways to use a laser rangefinder: pulse method and phase method.
If the laser rangefinder uses pulse emission, the absolute accuracy is generally low, but when used for long-distance measurement, it can achieve good relative accuracy.
If the laser rangefinder uses phase testing, the accuracy can reach plus or minus 1 millimeter, which is the highest among rangefinders.
The accuracy error of laser rangefinder is disproportionate to the measured distance, and remains the same throughout the entire distance. However, an excessively long distance will increase the error by+/-5ppm (parts per million) (+/-0.5mm/100m).
The accuracy of laser rangefinders has always been a concern for industry professionals, and in some industries, high-precision laser rangefinders are needed. For medium to long distance telescope laser rangefinders, the highest accuracy of this type of rangefinder is generally 1 yard+-1. At present, it can be called a high-precision laser rangefinder with an accuracy of 0.5 yards+-1. This high-precision rangefinder can achieve an accuracy of up to 0.5 yards within 100 meters.
The main error of the rangefinder comes from measurement errors. For example, if the laser beam is obstructed or penetrated, the measurement endpoint is selected incorrectly, and the rangefinder selects the measurement starting point incorrectly. Under ideal conditions, the error is very small.
