Difference between rangefinders and laser rangefinders

Rangefinders and laser rangefinders are both commonly used tools in the field of surveying, but there are some significant differences in their principles, accuracy and applications.

Rangefinders rely mainly on the principles of sound waves, ultrasound, and electromagnetic waves for distance measurement. It utilizes the speed and time of propagation of these waves in a medium to calculate distance. Laser rangefinders, on the other hand, use a laser beam as the measuring medium and calculate the distance between the target object and the rangefinder by measuring the time difference between the emission and reception of the laser beam, combined with the speed of light.

Laser rangefinders are far superior to traditional rangefinders in terms of accuracy. While traditional rangefinders typically measure with an accuracy of between 5 and 10 millimeters, laser rangefinders can measure to within 1 millimeter. This high-precision measurement capability gives laser rangefinders an irreplaceable advantage in the field of high-precision measurement.

Due to the limitation of its measuring principle, the rangefinder is usually applied to distance measurement in the fields of electric power, water conservancy, communication, environment and so on. While laser rangefinders are widely used in construction, aerospace, automotive, military and other fields due to their high precision, high speed and non-contact measurement characteristics. Especially in the occasions that require high-precision measurement, such as the navigation of unmanned vehicles, terrain mapping, etc., laser rangefinders play an indispensable role.

There are obvious differences between rangefinders and laser rangefinders in terms of principle, accuracy and application areas. Therefore, in the actual application, we can choose the appropriate measurement tool according to the specific needs.

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