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SweeperIt is an instrument that provides a plane or linear reference. The new automatic leveling instrument uses the laser beam trajectory emitted by a semiconductor laser as a measurement reference. It has the characteristics of small size, low cost, simple operation and wide application range.

With the detector, the horizontal height of any measuring point can be controlled within a certain radius, and the measurement and construction can be combined to realize construction automation, which is widely used in various industrial and civil construction occasions. According to the working principle of domestic ordinary brooms, brooms can be roughly divided into three categories: bubble brooms, automatic safety brooms and electronic automatic safety brooms.

low bubble typeSweeperIs a popular tool for construction, interior decoration and other construction projects.

The laser light emitted from the laser diode passes through the objective lens to obtain a laser beam. The laser beam is split into two beams after passing through a pentagonal prism. One beam goes straight through, the other changes direction by 90 degrees. The rotating head of the instrument is driven by a motor through a belt to form a scanning laser plane. The instrument is equipped with a long leveling instrument for leveling the instrument. (with bubblesSweeperSimilarly, the sweeper is also based on the sweeper, that is, the horizontal error of the laser plane depends on the accuracy of the sweeper. If the instrument is placed horizontally, the vertical plane of the laser scan can be obtained according to the vertical level.) The accuracy of this instrument is largely affected by human factors.

Due to the requirements of fast and convenient engineering construction operation and the high precision requirements of some special occasions, it is difficult to meet the requirements of blister leveling. Therefore, various automatic laser instruments came into being and produced some unique leveling methods.

In engineering, it is usually necessary to determine a plane, such as the road of the port, the yard, the square, the surface of the dock, the airport, etc. The sweeper can establish a wide range of plane, straight line elevation and inclined datum in an instant, providing datum or datum line for construction, construction and decoration. The sweeper can also be used for bulldozer site leveling and structural deflection measurement.

SweeperIt is a kind of rotating emission laser leveling instrument, which is used for horizontal scanning in civil engineering, construction and interior decoration engineering, and has high working efficiency. The instrument uses an infrared laser that rotates 300 times per minute to scan a horizontal datum with a radius of 360 ° and less than 150 meters. When it's with infraredWhen used together with the receiver, one person can operate quickly. If you use an optical scanner and a ruler, at least two people are required to operate.

Currently, most instruments on the market use the following compensation mechanisms:

hanging line compensation leveling method:

The collimation objective (including the laser) is suspended from the instrument base with a metal suspension wire. Use gravity to achieve automatic leveling of the beam.

Bearing Sway Compensation and Leveling Mode:

The laser and collimation system is mounted on a gravity pendulum, which swings around an axis determined by two precision bearings. Gravity leveling, magnetic damping stability, automatic leveling.

Electronic compensation safety mode:

The tilt sensor is used to measure the tilt size and tilt direction of the instrument base, and the servo motor is used to correct the output direction of the laser collimation system in real time.

Liquid compensation and leveling mode:

The collimated laser beam is passed through a stable liquid tank. When the instrument is flat, the liquid in the liquid tank forms a parallel plate; when the instrument is slightly tilted, the liquid in the liquid tank forms a liquid wedge, which compensates for the direction of the outgoing beam to a certain extent. In order to fully compensate the exit direction of the light beam, the light continuously passes through two layers of liquids with different refractive indexes. When the refractive indexes of the two liquids meet certain conditions, the exit direction of the light beam can be completely compensated.