As industries across the globe, and in India, in particular, advance toward automation and high-tech manufacturing, the importance of reliable and accurate measurement systems is at an all-time high. Calibration of industrial equipment such as CMMs, ULMs, and HMS machines requires state-of-the-art calibration labs that provide NPL traceable results. This is where laser interferometer-based high-precision calibration comes in.
In this blog, we will take a closer look at the world of high-precision calibration and find out why laser calibration has become the go-to solution for accurate industrial measurements
The term “high-precision calibration” or “high performance calibration” refers to the process of adjusting, testing, and verifying measuring instruments against an accepted standard so that their readings fall within the specified error limits.
Unlike traditional mechanical calibration methods, high-precision calibration aims to achieve ultra-low measurement uncertainty and is supported by specialized calibration equipment and technologies like laser calibration. This ensures that measuring systems operate with the highest level of accuracy, reliability, and repeatability, even in demanding industrial applications.
Accurate measurement results in high product quality, improved productivity, and safe operations. On the other hand, any error, no matter how small, leads to material loss, machine wear, non-compliance, and even safety concerns. That is why industrial and manufacturing industries opt for the most precise calibration solution, laser interferometer-based high-precision calibration.
At Roots Metrology, we run one of the best calibration labs in India and offer on-site calibration at your premises for convenience and less equipment downtime.
The laser calibration process works by using the principle of light interference to measure distances with exceptional accuracy. A laser beam is split into two; one reflects off the reference surface, while the other travels to the opposite end of the machine. The reflected beams meet and cause interference that can be seen by a trained technician.
Interference patterns are a result of constructive and destructive interference of light waves. Constructive interference occurs when the peaks and troughs of the waves line up perfectly and amplify each other. Destructive interference occurs when the peaks and troughs of the waves line up but cancel each other out.
The goal of a technician is to find a distance value where constructive interference peaks are at a maximum and destructive interference is at a minimum or eliminated. The technician can then use that data to calculate the exact length of a measuring instrument and calibrate it with a very small measurement uncertainty value.
The biggest benefit of laser interferometer-based high-precision calibration is, of course, its ability to achieve sub-micron levels of measurement accuracy. This level of precision is required for calibrating most, if not all, critical industrial measuring devices. For example:
A calibration lab is a specialized facility with all the necessary equipment, tools, standards, software, and trained personnel to perform calibration services.
The primary function of a calibration lab is to provide assurance that measurement instruments are accurate and reliable and offer traceability of those measurements to a recognized national or international standard.
For high-precision calibration services, you should also look for the following factors when selecting a calibration lab.
At Roots Metrology, our calibration lab offers world-class laser interferometer-based high-precision calibration. We also provide on-site services for industrial and manufacturing units to reduce equipment downtime and increase convenience.
With a state-of-the-art calibration lab for precision tools, we have become the go-to service provider for industrial and manufacturing companies throughout India.
What is high-precision calibration?
High-precision calibration is the process of calibrating measurement instruments to achieve accurate and reliable results.
Why is laser calibration important?
Laser calibration ensures sub-micron measurement accuracy for industrial equipment.
Which equipment can be calibrated using laser interferometry?
CMM, ULM, and HMS machines can be calibrated using laser interferometry.
Does Roots Metrology offer on-site calibration?
Yes, we offer on-site (doorstep) calibration of measurement systems.
What is NPL traceability?
NPL traceability refers to the process of calibrating equipment so that measurements are linked to standards set by the National Physical Laboratory (NPL).
