Differences between ultrasonic rangefinders and laser rangefinders
1, precision, ultrasonic rangefinder measurement accuracy is centimetre-level, laser rangefinder measurement accuracy is millimetre-level;.
2, the measurement range, ultrasonic rangefinder measurement range is usually within 80 metres, and handheld laser rangefinder measurement range * high to 200 meters, laser rangefinder telescope measurement range can be hundreds of thousands of metres, or even farther (laser rangefinder telescope measurement accuracy is usually 1 metre or tens of centimetres).
3, ultrasonic rangefinder is easy to report errors, because ultrasonic rangefinder is a sound wave emission, with the fan-shaped emission characteristics of sound waves, so when the sound wave passes through the place of obstacles more obstacles, the reflection back to the sound wave is more, interference is more, easy to report errors, while the laser rangefinder is a very small beam of laser light is launched and then come back, so as long as the beam can be through the, almost no interference.
4, ultrasonic rangefinder prices from tens of dollars to hundreds of dollars, laser rangefinder prices from hundreds of dollars to thousands, tens of thousands of dollars, according to the accuracy and distance of the different and there is a big difference.
At present, the semiconductor laser has been developed and put on the market of the wavelength of 370nm, 390nm, 405nm, 430nm, 480nm, 635nm, 650nm, 670nm, 780nm, 808nm, 850nm, 980nm, 1310nm, 1550nm, etc., of which 1310nm, 1550nm is mainly used in the optical fibre 405nm - 670nm is visible light band, 780nm - 1550nm is infrared light band, 390nm - 370nm is ultraviolet light band. High-tech products, professional technology ranging industry trends. More types, full range, high precision, easy to carry and other advantages more convenient for the majority of users to choose and use. Meet the use of various industries!
