Lasers for Accurate Measurement
Lasers have greatly evolved from simple physics laboratories to complex applications in
multi-functional industries and research institutions. Most of us have lasers pointers that are used for
playing or these lasers are seen at concerts or shows. But few people are aware that these lasers have
important applications in automotive welding and cutting, navigation, manufacturing,
communications, rapid prototyping, aviation and aerospace, military and defense, and the medical
industry. Lasers have emerged as a miracle in science to accomplish tasks that were thought to be
impossible. Most tasks require high precision and an efficient laser system to reproduce cost-effective
results. This is where the need for a beam profiler exists. Just like every industry requires specialized
tools to work effectively, the laser industry is no different case. With Laser Measuring System, various
measurement metrics are recorded using a power meter that is coupled with a power sensor. This laser
framework is used in 3d scanning metrology. A CMM is embedded with a laser scanner to help in the
3D inspection process at multi-points.
Laser Measuring System
A laser tracker is the most commonly used Laser Measuring System that throws a laser beam on an
optical target that contacts the object to be measured. This way system determines the
multi-dimensions of the placed object. The optical target is called retroreflective as it reflects the laser
beam to its origin point. Also known as a spherically mounted retroreflector (SMR). The software is
designed to determine the 3D coordinates, angles, and geometrical tolerance of the retroreflector.
These laser trackers are specially made to measure large-size objects which fall in the measuring
range of 10 m (30 ft) or more. On the other hand, a standard arm-type CMM can only measure a range
of a few meters. These kinds of measuring systems are useful in large applications like airplanes, parts
of large equipment, and milling machines.