Both remote rangefinder and laser Doppler vitometer use optical structures and laser light sources. The price of a single device is not very expensive and the cost is not high. However, similar devices can measure not only the distance of the object, but also the displacement, velocity, acceleration and other vibration data of the object.
When measuring distance and vibration at the same time, two devices are needed, which is complicated to operate and costly to invest.
Laser rangefinder is an instrument that uses laser light to accurately measure the distance to a target. When the laser rangefinder is working, it shoots a very thick laser beam at the target, and the photoelectric element receives the reflected laser beam from the target.
The timer measures the time from firing to receiving the laser beam and calculates the distance from the observer to the target.
Laser rangefinder is slow in weight, large in volume, easy to operate, fast and accurate in ranging, and its error is only one fifth to one hundred times that of other optical rangefinder.
Therefore, they are widely used in topographic survey, battlefield survey, target ranging of tanks, aircraft, ships and artillery, and altitude measurement of clouds, aircraft, missiles and artificial satellites. It is the key technical equipment to improve the shooting accuracy of tanks, aircraft, ships and artillery.