What is profile projector how it works?
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.
What are the main features of optical profile projector?
Profile Projector / Optical comparator Calibration
- Focus squareness parallel to optical axis.
- Table squareness perpendicular to optical axis.
- Perpendicularity of X to Y axis.
- Magnification and distortion accuracy for all lenses.
- X-Y axis lead accuracy for the complete length.
- Edge detection accuracy.
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 is the accuracy of profile projector?
In general, the least count of Profile Projector is 0.001mm or 1 microns. In some Make, the least count is more better i.e 0.0001mm or 0.1 microns.
Which type of lamp is used in profile projector?
Halogen Lamp
Profile Projector RPP-250 Projection Light Source with 24V / 150W Halogen Lamp. Double Oblique Light Source for Surface Illumination.
What is the nature of the specimen image formed on the profile projector screen?
In simple optical systems, the image on the profile projector screen is both upsides down and reversed. For symmetrical parts, this system is best suited as there is no difference in both the horizontal and the vertical mirror images.
What is horizontal profile projector?
Products Horizontal Profile Projector Horizontal Profile Projector. Horizontal Profile Projectors are ideal for measuring thread profiles, shafts, cams, cutting tools, screw threads, and gears. Sipcon Horizontal optical comparators are compact but heavy-duty structures ensuring stability in the long run.
What is working principle of profile graph?
Work principle The projector magnifies the profile of the specimen, and displays this on the built-in projection screen. On this screen there is typically a grid that can be rotated 360 degrees so the X-Y axis of the screen can be aligned with a straight edge of the machined part to examine or measure.
How do I calibrate my projector profile?
Calibration and Verification Using a glass scale that covers the measuring range of the profile projector, separately calibrate the X and Y axis by taking a test point approximately every 25 mm or 1 inch. The glass scale should be positioned approximately in the center of the measuring stage.
What is a mean of profile projector explain the construction and working of profile projector with uses of its?
Optical profile Projector Working principle (Construction) A beam of light from the light source is passed thru the condenser lens(C) and Projection lens(P) and fall on the Screen. the workpiece will be placed in between the light source and condenser lens. A shadow image of the workpiece will be created.
What is the accuracy of a profile projector?