Taking measurements of large-scale components or engineering structures is impossible to do with sufficient precision with ordinary tools For this purpose, it is necessary to get a laser tracker. With this type of equipment, it is possible to obtain the necessary geometric data, which can then be used for various purposes. What is their most popular use?

3D laser tracker – what is worth knowing about these tools?

3D measurements are distinguished by a high degree of accuracy, up to 0.02 mm. Such high precision is crucial, especially when you want to measure geometrically complex elements . Once the measurement data is obtained, it is analyzed by an engineer using specialized software. The result is a mathematical geometry resembling a virtual model of the measured object represented by points, lines, planes, circles, etc. At this point, it is worth noting that measurements may take shorter or longer, depending on the complexity of the component and its size.

The laser tracker is a portable device of small size, which is distinguished not only by the aforementioned precision, but also by reliable operation and durability. As a result, it is excellent for a variety of large-scale measurement tasks. Such tools first appeared on a wider scale in the industry in the first half of the 1990s. last century, and over time their use has become increasingly common and even essential.

How can laser trackers be used?

This type of equipment measures two angles and a distance. After the laser beam is sent toward the object, the light reflects off the target (SMR – spherically mounted retroreflector) and returns along the same path. However, a portion goes to the distance meter, so it is possible to determine what the distance is between the device and the SMR measuring probe. Currently, two types of distance meters are used. One is an interferometer, while the other is an absolute distance meter, or ADM (absolute distance meter).

Distance measurement is one of the most important functions of laser trackers. It is worth mentioning that the measurement can be both incremental and absolute. The former uses an interferometer and a frequency-stabilized helium-neon laser. Absolute distance measurements, or ADM, can be made for many years. However, it is only in the last 15 years that such systems have been greatly improved and now provide interferometer-level accuracy. Their important advantage is that the distance to the target is measured automatically, just point the beam at the SMR probe, and then start the measurement. It will be done with the same precision even if a beam break occurs. The interferometer, on the other hand, works well in those situations where there is no obstacle in the path of the beam.

What else are laser trackers used for?

Laser trackers are now being used in industries such as automotive, aerospace, energy and also in broad industrial manufacturing, where quality assurance is a key aspect.

Laser tracker is used where imposed dimensional tolerances must be strictly adhered to. During the production of large mechanical parts, assembly of precision components, robot calibration and setup of production tooling. Leaders in the most innovative industries, from aerospace and automotive to shipbuilding and energy, rely on tracker measurements.

Laser tracker tools also help minimize measurement time when measuring complex objects. It is estimated that measurements can be taken up to 75% faster than with traditional measurement methods.

Laser trackers are also successfully used to check the gematria of machines and equipment such as crank and hydraulic presses, milling machines, lathes, welding robots. Through the use of 3d measurement, it is possible to define the problem that causes the machine to be inoperable. Periodic inspections are even necessary to ensure smooth maintenance in production.

Using the services of companies that offer this type of equipment is the best choice for all companies that care about getting the accurate and reliable results needed to verify production processes or control quality. With the data you get, you can also avoid many costly and time-consuming mistakes.