What is projector profile?
Profile projectors (optical comparators) are a type of optical measuring instrument. The measurement principle is similar to that of optical microscopes. The target is placed on the stage, and a light is shined on the target from underneath. This causes the target’s profile, or shadow, to be projected on the screen.
How does a profile projector Act?
Profile Projector often simply called a optical comparator is a device that applies the principles of optics to the inspection of manufactured parts.In a comparator, the magnified silhouette of a part is projected upon the screen, and the dimensions and geometry of the part are measured against prescribed limits.
What is least count of profile projector?
In general, the least count of Profile Projector is 0.001mm or 1 microns.
Why profile projector is important?
Advantages. Profile Projector can reveal imperfections such as burrs, scratches, indentations or undesirable chamfers which both micrometers or calipers can’t reveal. They’re able to measure in 2-D space.
How many lenses are used in profile projector?
Five lenses are available, each featuring a different magnification, working distance, and field of view (FOV) diameter.
What are the typical applications of profile projectors?
It is a commonly used measurement of optical instruments. Thus, profile projector is widely used in major machinery manufacturing including aviation, aerospace industry, watches and clocks, electronics, instrumentation industry, research institutes and detection metering stations at all levels and etc.
Which parameters can be measured using a profile projector?
A Profile Projector is widely used to check the thread quality as it can magnify the key thread parameters enabling measurement of the flank angle, the minor diameter, and the root radius of the thread. Moreover, by using surface illumination, the surface of the thread can be checked for burrs and inspection.
Which lens is used in profile projector?
There are two lenses, one is condenser lens (Collecting and directing the light) Projecting Lens. A mirror is placed to reflect the image on to the screen. This is how a commercial profile projector is constructed.
Is standard for profile projector?
Profile Projector RPP-12 It is supplied with standard lenses with magnification 25x and 50x for contour projection. The maximum visible part of the object on the screen are 11.2mm and 5.6mm respectively.