Your Trusted Optical Comparator Calibration Provider
Micro Precision is an ISO/IEC 17025:2017 accredited calibration provider delivering NIST-traceable optical comparator calibration services through a network of more than 50 labs. Quality managers, metrologists, and procurement teams across aerospace, defense, medical device, automotive, and manufacturing industries rely on Micro Precision to keep shadowgraph optical comparators and profile projectors within the X-Y linearity, magnification, and angle accuracy their part-geometry inspection programs require. Every calibration follows a documented, repeatable verification process applied consistently across bench-top, floor-standing, and CNC-assisted optical comparator configurations. Micro Precision’s technicians work across a variety of optical comparator models and manufacturers, including Micro-Vu, Scherr Tumico, Deltronic, and Mitutoyo, giving procurement officers a single certified vendor for an entire optical inspection fleet rather than a patchwork of regional providers. This breadth is demonstrated across Micro Precision’s published model-specific calibration pages for instruments such as the Micro-Vu S14, Micro-Vu 500HP, and Scherr Tumico 20-2400 optical comparators.
Micro Precision’s ISO/IEC 17025:2017 accreditation and NIST-traceable measurement chain give quality managers a documented, audit-ready calibration record for every optical comparator and profile projector submitted, supporting compliance across aerospace, defense, medical, automotive, and manufacturing quality systems that depend on accurate part-geometry inspection.
Why Optical Comparator Calibration Matters
Optical comparator calibration matters because an uncalibrated instrument produces X-Y linearity, magnification, or angle measurement error that can mask part-geometry defects, leading to failed parts, rejected shipments, and non-conformance findings in audits. ANSI/NCSL Z540.3 establishes the calibration program requirements that quality systems depend on. Without a documented, accredited calibration program, the profile projected onto the screen or the readout on a digital optical comparator cannot be trusted to represent the true dimensions of the part inspected.
Quality managers need a documented, traceable calibration history to pass ISO/IEC 17025:2017 and customer audits without corrective action findings. Procurement officers need a certified vendor whose calibration certificates hold up under scrutiny from aerospace, defense, medical, automotive, and manufacturing customers. Lab technicians and metrologists need confidence that magnification and angle readings reflect true part geometry, not drift in the optical system or measurement axis. Micro Precision’s calibration program addresses each of these concerns directly, applying ANSI/NCSL Z540.3 program discipline to every shadowgraph optical comparator and profile projector it services.
Ensure Accurate Optical Comparator Calibration
Ensuring accurate optical comparator calibration means verifying the instrument’s X-Y linear axes, screen magnification, and angle measurement system against NIST-traceable reference standards, then documenting the results on a certificate of calibration. Micro Precision follows a defined sequence for every optical comparator received: inspect the instrument, test X-Y linearity, magnification, and angle accuracy against certified reference standards, adjust the instrument where needed, and issue documentation confirming the outcome. Every optical comparator returns with a certificate of calibration documenting the verification performed and the standards referenced. Micro Precision offers standard turnaround alongside faster turnaround options for optical comparators on a tight production or audit schedule, without compromising the verification steps required to maintain accredited calibration.
Micro Precision calibrates optical comparators by inspecting the instrument, testing X-Y linearity, screen magnification, and angle accuracy against NIST-traceable reference standards, adjusting the instrument where required, and issuing a certificate of calibration documenting as-found and as-left results for every shadowgraph optical comparator or profile projector serviced.
Our Calibration Options
Micro Precision offers optical comparator calibration through both in-lab and on-site service, giving quality managers and procurement officers a choice based on equipment size, production schedule, and downtime tolerance. In-lab calibration ships the instrument to one of Micro Precision’s ISO/IEC 17025:2017 accredited labs for full calibration under controlled optical and environmental conditions. On-site calibration brings a Micro Precision technician directly to the facility.
On-site service is especially valuable for large or floor-standing optical comparators and profile projectors that are impractical to ship, as well as for facilities managing a variety of optical inspection equipment across multiple production lines. Bringing calibration to the equipment minimizes downtime and keeps inspection stations in production longer between service visits.
Both in-lab and on-site optical comparator calibration are backed by NIST traceability and documented on a certificate of calibration referencing applicable industry standards. Micro Precision provides standard turnaround for both service types, with faster turnaround options available for time-sensitive audit or production needs across its network of more than 50 calibration labs.
Optical Comparator Types We Calibrate
Micro Precision calibrates a variety of optical comparator and profile projector instruments used for magnified silhouette and shadowgraph part-geometry inspection, supporting bench-top, floor-standing, and digitally-assisted configurations used in production and quality labs.
- Shadowgraph optical comparators
- Bench-top optical comparators
- Floor-standing (vertical) optical comparators
- Profile projectors
- Optical comparators with digital readout (DRO) systems
- Screen and edge-detection optical comparators
- CNC and video-assisted optical comparators
Optical comparator models not listed here are likely supported as well. Contact Micro Precision to confirm calibration availability for a specific make and model. Optical comparator calibration is available as part of Micro Precision’s broader Optical Equipment Calibration and Mechanical & Dimensional Calibration capabilities.
Calibration Service Levels Offered
Micro Precision offers optical comparator calibration at multiple service levels, from basic traceable certification to fully accredited documentation, so quality programs can match the level of rigor their industry requires.
| Type of Service | Traceable | Traceable with Data | Accredited (ISO:IEC 17025:2017, Z540.3) |
|---|---|---|---|
| Calibrated to manufacturers specifications traceable to SI Units | |||
| ISO 9000 Compliant | |||
| Calibration certificates, data, maintained on secure web based tool (CDM) | |||
| Detailed calibration certificates and calibration stickers | |||
| Instrument adjustment (if found out of tolerance) | |||
| ANSI/NCSL Z540-1 compliant | |||
| Calibration Data | |||
| Logo from Accreditation body, Expanded Measurement Uncertainty | |||
| ANSI/NCSL Z540.3 compliant |
Optical Comparator Calibration Services
Micro Precision delivers ISO/IEC 17025:2017 accredited, NIST-traceable optical comparator calibration services for shadowgraph optical comparators and profile projectors, backed by a network of more than 50 calibration labs. Quality managers get audit-ready documentation. Procurement officers get a single certified vendor for an entire optical inspection fleet. Lab technicians get calibration results they can trust for accurate part-geometry inspection. Request a calibration quote today and put a definitive standard behind your part-geometry inspection program.
Please complete our quick Optical Comparator calibration & repair service request form, and a Micro Precision representative will reach out to you same-day during office hours, or within one business day after office hours. (Mon – Friday 8AM – 4PM PST)
Optical Comparator Services
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Frequently Asked Questions
Micro Precision calibrates an optical comparator by inspecting the instrument, testing X-Y linearity, screen magnification, and angle measurement accuracy against NIST-traceable reference standards, adjusting the instrument where required, and issuing a certificate of calibration. This process is performed under Micro Precision’s ISO/IEC 17025:2017 accreditation for shadowgraph optical comparators and profile projectors alike.
Optical comparators are typically calibrated on an industry-common interval, most often annually, adjusted for usage intensity, environmental conditions, and the quality system’s internal requirements. High-volume production inspection stations and instruments supporting aerospace, defense, or medical quality programs often require more frequent verification between full calibrations.
Optical comparator calibration verifies the instrument’s X-Y linear axis accuracy, screen magnification, and angle measurement system, confirming that the projected silhouette and any digital readout accurately represent the true dimensions of the part being inspected. These are the core parameters Micro Precision tests on every shadowgraph optical comparator and profile projector it services.
Optical comparators can be checked internally between full calibrations, but ISO/IEC 17025:2017 and ANSI/NCSL Z540.3 based quality programs require periodic calibration through an accredited laboratory to maintain traceable, audit-ready documentation. Micro Precision performs this accredited calibration and issues a certificate referencing the standards applied.
Optical comparator calibration and profile projector calibration verify the same core parameters, X-Y linearity, magnification, and angle accuracy, because a profile projector is a type of optical comparator that projects a magnified silhouette of the part for inspection. Micro Precision calibrates both under the same accredited process.
NIST-traceable optical comparator calibration means the reference standards used to verify the instrument’s X-Y linearity, magnification, and angle accuracy are traceable through a documented chain of comparisons to standards maintained by the National Institute of Standards and Technology. Micro Precision issues a certificate of calibration confirming this traceability for every optical comparator serviced.