How To Measure Flatness Using Laser?

Published: 23rd June 2010
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Flatness of a surface is very important to measure and is applied in the case of design and development stages of any project. The flatness is an important criterion for any project or any work. There are several devices which have been used to measure the flatness of a surface. During the initial days the distance between the ground and the surface was measured at certain intervals and hence the flatness of the surface was measured. Although this method proved to be a fruitful one, the time consumed to measure the flatness was pretty long. Especially when it comes to the long surfaces the measurement took a whole lot of time and hence was not preferred.

Later on came the advent of the spirit level. It is one of the quite common one which is used to measure the flatness of a surface at a point. The instrument was a simple one and had a bubble in the glass pane and one could see the bubble moving here and there and when the bubble was at the centre the surface was flat. But this method too also can be done only at a particular point and hence time consuming. With the advent of technology the measurement of flatness can easily be done now using the laser beam.

The laser is a powerful beam which emits the radiations. This simulated radiation has the capacity to pierce through any object. The laser beam when sent from a short laser and using a suitable reflector and then receiving it back is a simple phenomenon used in measuring the flatness of the surface. There are several companies which produce several lasers which can be used to measure the flatness of a surface. But there are certain lasers which can emit radiation which are at a harmful wavelength for humans. So it is always better that you check on a few criterion like,

• Brand of the laser

• Recommended wavelength range

• Maximum permissible level

When these are kept in mind before buying a flatness measuring laser then it would prove to be a useful one.

The warranty details in the case of these lasers are also important because there might be chances that these lasers might get damaged and hence you would need something to claim on. The flatness measuring lasers are better when bought through these branded outlets as they are objects of high cost. Thus these things ought to be kept in mind before you buy any flatness measuring device.

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