Basically all instruments will be affected by climate and climate, laser rangefinder is no exception, next let me introduce to us what factors will affect the measurement accuracy of laser rangefinder.
We all know that the measurement principle of laser rangefinder is to use the straight line transmission and reflection of light for ranging, but during the measurement process, refraction will occur, and then the measurement error will be formed, but the refractive index can be used for calibration.
When the laser is transmitted in the air, it will be absorbed and scattered by the atmosphere. Generally, the shorter the wavelength is, the stronger the scattering will be, and the weaker the absorption will be.
Because the change of atmospheric conditions makes the refractive index of atmosphere in space straight distribution is not uniform, that is, there is a refractive index straight razor.The path of the light beam transmitted in this space will be a curve, so that its light path is not equal to the verse distance, and there is also the influence of the curvature of the earth when the distance is longer.When the ranging accuracy reaches the micron level and the distance exceeds 10-20 highways, curvature correction should be added.
Temperatures also have an effect on laser range finders, which can be disabled by temperatures above 50 degrees and below 40 degrees.