What Is a Laser Level?
A laser level is a device for leveling with a laser point built into the level.
A level differs from an original level in some respects. Usually, a level is a device used to measure height differences with a set of bars called a staff with a memory. It is used in pairs, with one person in the role of holding the staff and the other person using the level.
However, a laser level can be used by a single person if the laser emitted from the level is received by a receiver instead of the person using the level. This reduces the number of personnel and improves work efficiency.
Applications of Laser Levels
Laser levels are mainly used in the fields of civil engineering and construction. Especially in construction, civil engineering, and interior work, the ability to easily level the ground improves site efficiency.
They are also often used for automatic measurement.
1. Rotating Laser
Rotational lasers can be easily leveled by an automatic compensation mechanism inside the machine. They are therefore used for placing ready-mixed concrete, finishing floor surfaces, and stacking concrete blocks.
2. Rotating Laser
The rotating laser is a laser level that has a slope setting function added to the rotating laser. It can set the slope in one or two directions from the horizontal reference plane and is used in large-scale construction projects because of the wide range of distances over which the laser can be received.
Principle of Laser Levels
To begin with, a level is an instrument that checks whether the ground is level with respect to a reference point or whether there is a difference in elevation with respect to a reference point. A normal level looks through a lens to check the reference point and then measures the level of difference in height of the target point.
The laser level uses an infrared laser to replace the peering function so that even with a small number of people and a distant target point, leveling can be done smoothly by using a receiver.
There are also some laser levels, such as the rotating laser mentioned above, that can be set to a gradient, and some are designed for construction equipment. However, laser levels are not strictly speaking in the category of levels.
They cannot be used for public surveying and are considerably less accurate than other levels. The farther away from the machine, the wider the emitted laser becomes and the less accurate it becomes. This is a drawback of laser levels.
Types of Laser Levels
Laser levels fall into two main categories: rotating lasers and rotating lasers. There are also laser markers for interior work.
1. Rotating Laser
Rotating lasers emit a laser beam through 360° so that all directions can be measured. By setting a receiver on the staff, it is possible to audibly confirm where the laser is hitting.
2. Rotating Laser
The Rotating laser is a laser level that combines the functions of a rotating laser with a slope setting. It can be used to set the level and slope of landscaping and grading, and can also be used with the receiver attached to heavy machinery while the operator is on board. Some laser levels have a reception distance of over 1,000 m, making them suitable for construction sites, agricultural land, and other large areas.
3. Laser Marker
Laser levels are used to project multiple laser beams onto walls, ceilings, and floors to create a reference line. Sometimes called an auto laser or line laser, it is characterized by its ability to illuminate an entire space at once.
Because the light does not blink, this product is suitable for indoor use; although it cannot emit a 360° laser beam, a remote control can be used to automatically change the direction of the beam, making it possible for one person to work smoothly.
However, this product is designed for indoor use. To maintain accuracy, it can only be used up to a distance of about 40 meters.
Other Information on Laser Levels
Calibration of Laser Levels
As is true of all measuring instruments such as laser levels, errors will occur during use due to deterioration of parts and vibration during transportation. For this reason, a process called “calibration” is necessary. Calibration is the process of comparing the measured values between the actual device and a standard device to check for any discrepancies.
If calibration reveals that adjustments are necessary, repairs are made. Repeating calibration and correction regularly ensures that the accuracy of the measuring instruments remains constant and ensures a high level of technical competence. Depending on the work order and ISO 9001, calibration records for measuring instruments must be submitted.
If the equipment is leased, the leasing company prepares and stores the records, but if the equipment is purchased, the company that purchased the equipment must take care of this.