What is the difference between laser and ultrasonic rangefinding?
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, while the handheld laser rangefinder measurement range up to 200 metres, laser ranging telescope measurement range can be hundreds of thousands of metres, or even further (laser ranging telescope measurement accuracy is usually 1 metre or tens of centimetres).
3, ultrasonic rangefinder is easy to report errors, because ultrasonic rangefinder is a sonic emission, with the fan-shaped emission characteristics of sound waves, so when the sound wave passes through the place of obstacles more obstacles, reflecting 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.
Therefore, laser rangefinders have long been used in our lives in various industries such as: interior designers, surveyors, appraisers, power field measurements, firefighters, land planners, property developers, stage construction, factory and warehouse planning, exhibition builders, foresters, design, fire safety, industrial transmission, traffic accident sites, crane drivers, mapping and software applications, data modelling and other professional Handheld laser rangefinders are used in the field of surveying.
