A laser level is a level that directs the laser beam emitted by a laser device into the telescope tube of the level so that it is emitted along the sighting axis. There are two types of laser levels: a dedicated laser level and a laser device attached to the level. When used with a level rod equipped with a photoelectric receiving target, leveling measurements can be performed. Compared with an optical level, a laser level has the characteristics of high precision, long sight line, and automatic reading and recording.
The principle of using a microprocessor to control the scanning of an optical scanner is to project the laser onto the optical scanner, use the microprocessor and other hardware circuits to collect horizon signals in real time, and then control the optical scanner to scan after processing. Thus, an intelligent laser level is designed and manufactured. The laser level generates a laser line that always remains parallel to the horizon in real time.
The optical scanner is a low-inertia scanner. It uses an optimized and reasonable scanning control model and a microprocessor to control the optical scanner to achieve the deflection of the light beam. That is, the light beam can be moved according to the control model or randomly selected. This working mode has very strong functions and has the characteristics of high speed and high precision. This is intelligent optical scanning. In the national economy and military technology, for example, in laser microfilm, laser scanning ophthalmometer, laser marking machine, large-screen art display, infrared front-view system and other technologies, it has broad application prospects.
The laser level is a comprehensive instrument integrating optics, mechanics, electronics and computers. The instrument is divided into two parts, one is the host part and the other is the projector part; the host part collects the attitude signal or manual signal of the horizon, and calculates and processes the signal to control the optical scanning system to scan in real time. The projector part uses a laser system (including semiconductor laser, laser power supply and optical system) and an optical scanning system to generate a laser scanning line under the control of the host, projecting it in any direction and position in two-dimensional space. This scanning line is always parallel to the horizon.
