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How weather conditions affect laser rangefinders?
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.
What safety rules should be followed when using a laser rangefinder?
The following safety instructions must be read and followed carefully when handling and operating a laser rangefinder.
Impact of laser radiation on human body:
No one has the right to open and maintain the laser rangefinder except maintenance personnel, authorized personnel or designated personnel.Note that the laser rangefinder contains high voltage and laser radiation.Operating procedures must be followed and irregularities may result in damage to maintenance personnel and measuring equipment.In any case, it can only be powered by DC 10-30 volts.
To ensure maximum system performance, strictly follow the following rules:
Do not remove the laser rangefinder when there is fog or stain on the optical element
Do not touch the optical element of laser rangefinder by hand
Be careful when removing dust or grease from optical parts.
To prevent overheating of the sensor, do not place the laser rangefinder in the car exposed to direct sunlight.
Maintenance of laser rangefinder:
Be sure to check the appearance of the instrument and remove dust, grease, mold, etc.
Use soft dry cloth when cleaning eyepiece, objective lens or laser emission window.Do not use hard objects to avoid damaging optical properties.
Laser rangefinder is a high precision instrument integrating light, machine and electricity.Care should be taken not to crush or fall from height to avoid damage to the instrument.