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.It is a useful item in a small parts machine shop or . Using Optical Comparators. Optical Comparator, Resolution 0.00005 in/0.001mm, Accuracy +/-0.1 Percent Or Less (Contour), +/-0.15 Percent Or Less (Surface), Contour Illumination 24V, 150W Halogen Bulb, Effective Table Working Area 17 in x 6 in, Image Type Inverted Image, Magnification - Included Lens 10X, Measuring Unit Linear Scale, Optical System Orientation Horizontal, Projector Series Mitutoyo PH-A14 with KA Counter . The graduation represents a total length of 200 mm and consists of line structures with 1 mm length and 2.5 m width. There are two primary configurations of optical comparators: horizontal and vertical. Our c-vision™ Video Contour Projector combines the speed and accuracy of a video measurement system with the rugged capacity of an optical comparator to create the world's best shop-floor measuring tools. The repeatability/ reproducibility of this process are the largest contributors to the measurement uncertainty. $49.00 USD. The HB400 Horizontal Optical Comparator provides exceptional performance with a fully-usable 16" diameter viewing screen, a 21"x5" workstage, 16"x6" of stage travel, and high 110lb workload capacity. Mitutoyo. JPS61100723A - Optical comparator - Google Patents Optical comparator Info Publication number . Disadvantages of Optical Comparators Round within 20 millionths. Pre-Owned used optical comparators from multiple brands, such as J&L, Starrett, S-T, Mitutoyo and more, are available after extensive refurbishing and remanufacturing are performed, resulting in rebuilt systems with various levels of accuracy and functionality. Title; 12X12 Motorized Stage: 12X12 Motorized Stage With Scales: Advantages of Optical Comparators: 1. These precision measuring systems, sometimes referred to as shadow graphs, are an excellent solution for viewing, measuring, and inspecting manufactured parts. The Fowler 52-664-009 optical comparator has 10X magnification and a set of nine reticles for measuring line thickness, screw threads, angles, radii, circles, degrees, and length. An optical comparator can give an accurate measurement of a profile within the plane of sharpness. The measured value on the scale readout should be within the stated manufacturer's specifications. High precision: (2.5+L/150) μ M is comparable to the accuracy of the foreign similar products 3. MPM has developed a digital optical comparator measurement system that is user friendly and yields both accurate and precise results. A common application for optical comparators is to measure radii. The parallax error will be avoided. For Sale • Used • $95,000 Horizontal comparators or projectors are used with heavy parts or with shapes that require being in a fixed position. The c-vision™ Video Contour Projector® combines the speed and accuracy of a traditional video measurement system with the rugged capacity of an optical comparator to create a high accuracy shop floor measurement solution. Dorsey optical comparators demonstrate that attention to detail does matter and all are built on a foundation of stability and accuracy. In the optical field, Dorsey is one of the few remaining domestically manufactured optical comparator product lines. While the general function of an optical comparator hasn't deviated from it's origin, the technology involved in capturing measurements has greatly evolved. The precision measurement group at Cross offers optical comparator calibration services for most models of optical comparators, which include verification of X-Y linearity, magnification, and angle. . Optical Comparators. Judge Tool & Gage Inc. has been chosen by professionals as their primary source for precision measurement, calibration, and inspection solutions for more than 60 years. You can use the optical comparators to detect undesirable chamfers, indentations, scratches, or burrs by checking the magnified image of a part. on-screen equates to 0.001 in. At first, the only way to measure with an optical comparator was by comparison--hence its name. This ultra precision optical comparator utilizes an integrated zero backlash, high resolution scale and a free state, normalized zero stress stage. Large travel: 250*150*100(for the focus) 4. Reticle#11 (10x Comparator) Designed for 10X Series Pocket Optical Comparators. An ISO9000 (etc.) With traditional optical comparators, this involves removing the overlay, walking over to the overlay storage area, finding the correct overlay . Loc: New Zealand. An automated, instant measurement system that provides highly accurate and repeatable measurement data in seconds; simply place a part on the stage and push one button! 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. It has XY workstage travel of 8 inches by 4 inches. • High accuracy can be achieved due to very few moving parts. This portable optical comparator allows a video display user to very easily and quickly perform a visual check of the accuracy of a display's grayscale, one of the critical display parameters. Although traditional optical comparators are capable of gathering accurate measurements, this requires a highly trained operator. company that needs to adhere to beaurocratic standards can't use an optical comparator (or any other gage) for direct measurement unless the gage is certified to be accurate. Optical Comparator Calibrations to OEM Specifications Our service technicians perform calibrations to OEM manufacturer specifications in order to ensure quality and accuracy. Center Stage -- Max. . 15. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) • an accurate pressure regulator is required. Built in automatic edge detection software allows . At the heart of these systems are precision optics, superb lighting and a highly accurate workstage. In this application, the digital optical comparator's higher accuracy provides an obvious benefit. Get Accurate Information. Mitutoyo PHA-14 Horizontal Optical Comparator. You can use the optical comparators to detect undesirable chamfers, indentations, scratches, or burrs by checking the magnified image of a part. Resolution is simply how fine the measuring instrument is set to read out—whether to tenths, hundreds, thousands or whatever." The distinction matters. Also, because parts can be made in small batches, there is a constant need to change the overlay. The stage features hardened and precision ground bearing ways. • The scale is not uniform. (707) 838-6272 Reply #18 The PG-14LS horizontal optical comparator from Mitutoyo America Co. comes equipped with linear glass scales that are factory mounted and ready for a choice of optional display counters. An automated, instant measurement system that provides highly accurate and repeatable measurement data in seconds; simply place a part on the stage and push one button! The Millimess comparators are ideal for mobile measuring tasks. The unique, granite-like housing offers a rugged appearance to this fine instrument. Disadvantages of Optical Comparator Call us at (949) 348-1213! These precision coordinate stages can be used for optical comparators, vision systems or microscopes. All systems come equipped with impressive capabilities such as a durable build . This pen outline becomes the reference to compare to any subsequent objects placed on the stage. Length accuracy is critical since it affects measurements of the device utilized along the X or Y-axis. 64PKA087 PHA-14 QM Data arm mount, 10x lens. Accuracy formula +/- .004 +[(L/20).001] NIST traceable calibration certificate; 2 Year Warranty; Models. You can use optical comparators to gather simple length and width measurements. Item Optical Comparator; Resolution 0.0001mm; Accuracy +/-0.1% Or Less (Contour), +/-0.15% Or Less (Surface) Contour . 2. Each stage features heavy duty crossed roller bearings. 64PKA086A PHA-14 w/KA Counter, tray, 10x lens. The projection lens in an optical comparator is telecentric in object space allowing accurate measurement of slightly out of focus object features. It has a 14-inch screen made from fine ground glass with cross hair lines. Linear glass scales provide 0.00002" (0.5µm) of resolution. That was especially true when vision systems started hitting their stride a few years ago. Optical Comparators. Optical Comparators Manufactured without compromise, Starrett optical comparators provide time tested, cost effective solutions for non-contact measurement. Dorsey has tightened manufacturing tolerances to maintain uncompensated absolute inherent . Your local representative is ready to help you with product details, demonstrations, training, or purchase information. A glass lens provides high-resolution images. workpiece diameter 120mm, 60mm riser is optional (172-143) Mitutoyo 14 . Measuring graduations are commonly superimposed over the projected silhouette of the workpiece or feature to determine the measurement. Additionally, the manual nature of a traditional optical comparator always leaves room for human error. Horizontal optical comparators, also known as profile projectors, are suitable for shaft parts or heavy workpieces with large volume. Typically the calibration process takes two to three hours, keeping system . Step 5 - What options or tooling will be required for my Optical Comparator? Part images could be compared to rulers and protractors placed across the screen. 1⅜" Diameter. They combine to ensure bright, sharp images and exceptional accuracy. Measurement by comparison. Title; 12X12 Motorized Stage: 12X12 Motorized Stage With Scales: The comparator can also be used to take measurements of dimensions by moving the x and y axis . Projection magnification lenses come in a variety of different magnifications. JATEN Optical Comparators since 2005, Vertical Profile Projector, Horizontal Profile Projector, 300mm/400mm/600mm screen meets all your requirements These machines feature industry leading internal edge detection for both accuracy and speed, reducing operator variation and decreasing inspection time. VF600 Vertical Floor Standing Optical Comparator Parallax error will be avoided. First, place any two dimensional part on the stage of any overhead projector and project the image onto a large piece of paper taped to a wall. Work-holding is just as important when inspecting a component as when . High Accuracy 12" Vertical Comparator - 303 Series Starting at ; Item #: 304-919A Mitutoyo - PV-5110- 20" Vertical Optical . Magnification is the big one, I'd be looking at 50x here. All Pre-Owned systems include a 100-point service check . Accuracy: By removing the potential for human error, digital optical comparators are extremely accurate in their measurements, which is necessary for many modern industries and technologies. Hundreds of critical features can be dimensioned on the part anywhere within the system's field of view. Motorized height measuring instruments 2D. It defines the limits of the errors made when the instrument is used in normal operating conditions. You may know them as pin gages, plug gages, or Go and No-go gages. Disadvantage: • Low speed of response compared to other types of comparators like optical comparators. Optical comparators can be used in the industry to measure or gage objects more easily, since it creates a much larger version of the object being measured. Edge detector: Automatically aim and gather data. These features allow 16H optical comparator to attain inherent accuracy and repeatability values as high as .00001" without electronic compensation. Accuracy -High-precision optics and cameras allow for up to +/- 2um accuracy 1984-10-24 Filing date 1984-10-24 Publication date 1986-05-19 Test points should be taken every 1 inch across the measuring range of Optical Comparator for each axis. Micro-Vu manufactures non-contact and multisensor measurement machines including Automated Vision Systems, Manual Vision Systems, and Optical Comparators for measuring, quality assurance, and incoming inspection Following are the advantages of optical comparator: High accuracy will be achieved as it has very few moving parts. If you can't find the email, check your Junk/Spam folder. Fiber illuminator is standard accessory. The optical comparator is not accurate to the .0002!!! You can use optical comparators to gather simple length and width measurements. Add to cart. A contour is shown under 10X magnification. The "3500" Series 14" benchtop horizontal beam comparator is the perfect general purpose optical comparator. In general terms an optical comparator makes most CMMs look like tape measures. These precision coordinate stages can be used for optical comparators, vision systems or microscopes. 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