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Guidelines in Selecting the Accurate Laser Scanner

By MatthewNicholson Subscribe to RSS | January 19th 2012 | Views:

Linear systems are used in metrology instruments and precision machining tools such as digital callipers and coordinate measuring machines. Linear encoders use several diverse physical properties to instruct the position such as optical, magnetic, inductive, and capacitive.

Laser scanning, also known as 3D laser scanning and laser-measurement normally discussed for application to a variety of efforts, as well as engineering, reverse engineering, quick prototyping and recreation scene, even. But if you have not practiced 3D digitizers scan and are considering implementing 3D digitizers in your company or organization, you will soon find that the topography range laser use results in part from a wide range of analytical technologies, some of which are valuable to a company and unsuitable for other.

Ultimately, the choice of scanning technology to identify the right amounts at the right scanner. Beneath are listed the most common types of laser scanners used on a commercial basis, discussing their advantages and disadvantages while selecting machine casting.

Contact Scanners

Unlike other scanners, collect contact details of a physical object survey to measure their coordinates. A coordinate measuring machine (CMM) is a common example of a contact scanner. The main advantage of the contact scanners, especially for manufacturing, they produce extremely precise data. But, depending on your topic of exploration, the disadvantages can be twofold: its small size and range of motion only allows exploration of smaller objects, and polling feature may be risky for delicate items that cannot be replaced, such as antiques or heritage objects.

Time of Flight Scanners

The time of flight scanners noncontact scanners that uses a laser to probe an object and collect data. With a laser rangefinder, the flight time of the scans to measure the round trip time of the release of the laser at an object and its record in the rangefinder after refraction of the object. The main advantage of time of flight of the scanners is their ability to study major issues, such as the expansive grounds of large buildings. The main disadvantage is that its results, while accurate, are not as accurate as other types of scanners, but cannot be a problem depending on topography needs.

Triangulation Scanners

As the flight time of scanners, laser triangulation using a scanning probe matter. But instead of using a laser rangefinder, which uses a camera to detect laser spots on the surface of the object, with different locations of the points that appear in different areas of the field of view camera. The main advantage of triangulation scanners is their ability to perform low-resolution scans in seconds. Its main disadvantage is that in a high-resolution analysis, which will take longer, even the slightest movement in the scanner can produce erroneous results.

Structured Light Scanners

Photoelectric sensors-structured light is projected on the object for examination and registration of deformations on the object's surface. The main advantages of structured light scanners scan speed is high and perfect results of exploration, with its rate of elimination of the possibility of movement in the scanner. Its main disadvantage is that, as contact scanners, which cannot be used to analyse very large objects.

There are lots of machine shop that sells scanners and the quality is excellent and they give you warranty at the same time.

MatthewNicholson - About Author:
MatthewNicholson is an experienced writer in business industry and works for AbcoPrecision, a leading manufacturing in Australia. At present, he is writing on different topics like CMM, complex machining, CNC machining Brisbane, CNC Lathe and others. To find more info, please visit

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