Laser rangefinder is a distance measuring instrument that uses laser to measure distance. It is mainly used in military and industrial fields. It has the advantages of fast and accurate measurement, but it also has the disadvantages of being afraid of water and dust. When using a laser rangefinder, accuracy is a very important parameter. Depending on the different measurement methods, the accuracy of the laser rangefinder will also vary, generally up to ±1mm, and a good laser rangefinder has higher accuracy. Let's take a look at what a laser rangefinder is.

1. What kind of instrument is a laser rangefinder?

A laser rangefinder is a distance measuring instrument that uses modulated laser parameters to achieve a target. It was invented by Maiman, a scientist at Hughes Aircraft Company in the United States, in 1960. It began to be used in the military field in 1961. As the price of laser rangefinders continues to decline, laser rangefinders have gradually begun to be used in industry.

With the development of laser rangefinders, it is widely used in major fields such as topographic surveying, battlefield surveying, tanks, aircraft, ships and artillery ranging targets, cloud measurement, aircraft, missiles and artificial satellite heights. Industry is mainly used in industrial measurement and control, mines, ports and other fields.

2. What is the general accuracy of a laser rangefinder?

A laser rangefinder is a measuring tool, and accuracy is an important performance indicator. The measurement accuracy of a laser rangefinder generally refers to the specified measurement error based on an ordinary measurement environment. Is the laser rangefinder accurate?

There are two ways to use a laser rangefinder: the pulse method and the phase method. Pulse-emission laser rangefinders generally have low absolute accuracy, but can achieve good relative accuracy for long-distance measurement; phase-test laser rangefinders can achieve an accuracy of ±1mm.

It should be noted that the accuracy error of the laser rangefinder is not proportional to the measured distance. The entire distance is the same, but if the distance is too long, the error will increase by ±0.5mm/100m.

3. Advantages and disadvantages of laser rangefinders.

1. Advantages of laser rangefinders.

The sensor of the laser rangefinder is just a light spot. It can be used at a distance, whether it is a small hole or an object. In addition, the laser response time is very fast, which can be used for fast measurement, and is not affected by the target material, color, tilt, etc., to achieve accurate measurement.

2. Disadvantages of laser rangefinders.

If there is water or dust on the surface of the laser rangefinder, the light will be emitted, generating false signals; and the laser is harmful to the human eye, and there is a certain danger when using it.