Optical Comparator Calibration

Optical Comparator Calibration Services

Optical Comparator Calibration

  • Optical Comparators
  • Profile Projectors
  • Vision Systems
  • Microscopes

PCS offers onsite calibration for all makes and models of Optical Comparators, Vision Systems, Profile Projectors and Microscopes. Our standard optical comparator calibration service includes verifying X and Y axis linearity, perpendicularity and parallelism as well as any size lens magnification verification from 10X to 100X. Our highly trained calibration technicians will also perform light cleaning and lubrication of the critical components as part of our standard service of your optical measuring machine. PCS uses the latest technology in calibration standards including master glass standards which are all ISO-17025 calibrated and NIST Traceable. Please call or fill out our online quote form and one of our trained staff will get back with you immediately to discuss your optical calibration needs. We look forward working with you and becoming your local calibration service provider!

PCS is also a proud distributor of Mitutoyo and Starrett optical equipment and can help with replacement or new equipment needs.

Mitutoyo Starrett

On-Site Calibration Services

We provide on-site calibration services to customers located in Tennessee, Virginia, Alabama and Kentucky. The locations listed below are just a few examples of areas that we serve on a routine basis.

  • Knoxville, TN
  • Johnson City, TN
  • Nashville, TN
  • Bristol, TN
  • Murfreesboro, TN
  • Cookeville, TN
  • Kingsport, TN
  • Chattanooga, TN
  • Abingdon, VA
  • Huntsville, AL
  • Decatur, AL
  • Louisville, KY
  • Lexington, KY

Accreditation and Documentation

All calibrations are traceable to the SI through NIST, (National Institute of Standard and Technology) and include “long form” calibration certificates with as-found/as-left data. ISO/IEC-17025 accredited calibration is available upon request. We also offer a web based calibration interface, “e-certificates” that gives you access to electronic copies of your calibration certificates which can be viewed and printed at your convenience. Standard turnaround time is 48 hours.

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Optical Comparators

Optical comparators have been used for more than 60 years and remain a highly versatile and cost-effective technology for monitoring the processes and quality of a broad range of manufactured parts. The first comparators were merely static overhead projectors that displayed magnified images of screw threads onto a wall for manual measurement, optical comparators have evolved into full-featured machines that use modern mechanical, electrical and optical technology to minimize inspection time and maximize cost savings.

Optical comparators save time which is the most valuable commodity in today’s manufacturing environment. Optical comparators reduce inspection time, operator training costs and operator fatigue, all while decreasing cycle time. And because comparators generally allow parts to be held in one orientation for each 2-D view, costs associated with parts handling and setup times are significantly reduced. Ordinary and custom made gages are subject to wear and need frequent re-calibration, which takes them out of service for a period of time. Also, high-volume production can require multiple sets of fixed gages, increasing costs of the manufacturing process. The fixed nature of these custom gages means that minor product-design changes can make hard gages obsolete or require costly modifications. Optical comparators, are general-purpose measurement devices which easily adapt to design changes and are suited for either first-article or repetitious inspections.

Yet another advantage of optical comparators is their ability to measure in 2 dimensional space.  Micrometers and calipers can only measure one dimension at a time; however, comparators have the ability to measure length and width at the same time. The operator simply lines up the lower left-hand corner of the image with the screen centerline to establish a zero point, and then checks the upper right-hand corner to get a simultaneous reading of both length and width. The straight-line distance from corner to corner can be obtained with almost instantaneously.

Optical comparators can also provide more information than just simple dimensions. Calipers, Micrometers and other hard fixed gauging can provide length width and other typical dimensional measurements. Optical comparators in addition to dimensional measurement can reveal burrs, surface finish issues, indentations or other defects that would have otherwise gone unnoticed. All of this information is displayed on a large screen which can be viewed by multiple people which is also very useful.