UKAS-Accredited Length Calibration | Class A Interferometry | Trusted UK Experts
At Avon-Dynamic Calibration, we specialise in UKAS-accredited calibration by interferometry — the gold standard in dimensional metrology for achieving the highest level of accuracy in length measurement. As one of the few laboratories in the UK equipped and accredited to perform interferometric calibration, we proudly deliver precision services from our state-of-the-art ISO/IEC 17025 accredited laboratory in Bristol.
Our interferometry calibration services cover gauge blocks, long series gauge blocks, length bars, optical flats, and more. Backed by over 30 years of metrology experience and accreditation to the latest UKAS standards, our services are trusted by aerospace, automotive, defence, research, and precision engineering sectors across the UK.
View our UKAS schedule of accreditation here.
Gauge Blocks and Long Series Gauge Blocks (Steel, Ceramic, and Tungsten Carbide)
We also provide high-precision calibration for length bars and optical flats using interferometry, ideal for critical tolerances and reference standards.
Interferometric calibration uses laser-based techniques to measure surface flatness and length with nanometric precision. This technique eliminates many of the environmental and contact-based errors found in conventional comparison methods. As such, it’s the preferred choice for:
Whether you need regular recalibration of gauge blocks or a tailored solution for your length standards, we provide results you can trust. Every calibration comes with full traceability, a detailed UKAS certificate, and minimal disruption to your operations.
As the UK’s first UKAS-accredited jigs and fixture certification laboratory performing on-site at customer facilities, we know how to deliver on-site certification, no matter how small or large the fixture or jig. We provide you with full UKAS-certification, guaranteeing your jigs and fixtures are fit for purpose.
We provide an on-site and laboratory component inspection service through our CMM calibration machines. We cover a range of component inspection sizes, from micro components that can be measured with our precise Coordinate Measuring Machine (CMM), to oversize on-site jigs and fixtures inspection, via our mobile certified portable arm coordinate measuring machine (CMM).
We are able to source any calibration or measurement equipment, from simple gauges to a complex measurement system. We source with a focus on performance, best return on investment, and lifetime project costs.
We manage every aspect of your calibration needs, so you can focus on your daily operations without worrying about compliance or maintenance schedules. From identifying and managing your assets to scheduling monthly collections and having all equipment calibrated on time, we handle it all. With full calibration and certification for all quality verification equipment, we provide a seamless, stress-free solution to keep your engineering and manufacturing sites running smoothly.
Advisory support comes in a vast range of types and complexity, but all follow the same theme of improving the calibration and measurement activity for clients. At Avon-Dynamic, we have spent 30 years investing in the innovation and development of the best calibration and measurement processes, procedures and equipment.
At Avon-Dynamic, we provide UKAS-accredited testing and calibration services that ensure precision, compliance, and efficiency across multiple industries. With expertise in electrical calibrations, dimensional calibration, pressure calibration, temperature calibration, and torque/force calibration, we deliver accurate results that keep your equipment performing at its best.
We work closely with businesses across the UK, providing a premium collection and delivery service to minimise disruption to your operations. From first article inspection to ongoing advisory support, our tailored solutions help you maintain quality consistency while improving long-term performance.
