Difuzno odraz problem grijanja zavojnica laser daljinomjer
Usually, in order to reduce errors, those laser rangefinders will have a reflective surface on the measured end to reduce the error caused by diffuse reflection. So, how did the telescopic laser rangefinders used by snipers overcome this problem? The working principle of a laser rangefinder is similar to that of sonar, but will the signal of the reflected light be easily interfered with by other wavelengths and intensities of light in the environment? Humidity sensor probe, stainless steel electric heating tube, PT100 sensor, fluid solenoid valve, cast aluminum heater, heating ring
The detection device of laser rangefinders (puls tip) općenito uses avalanche photodiodes, which are only sensitive to specific wavelengths of light. If the wavelength matches, very small intensity can can de detected by it. If the wavelength does not match, even if the light intensity is large, it cannot be detected. Laser has the characteristic of good monochromaticity, with a common used wavelength of 905nm. So the signal of receiving reflektirano svjetlo je not lako poremećeno by ostalo valne duljine i intenziteti of light in the environment.
Tu su dva obično korišteni laser raspon metode: pulse metoda i faza metoda.
The phase method measures distance by measured the phase deviation of the returned wave, which needs to be coordinat with the target, which is the reflection surface on the measured end. In this case, the transmission power of the rangefinder is relatively small.
