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Laser Tracking 

Do you frequently carry out dimensional inspections of large equipment and have been using less sophisticated methods of doing so? Perhaps you’re looking to upgrade your laser tracking capabilities with the most modern, cutting-edge solutions available. Whatever the case may be, you’ve come to the right place as, here at ETG, we’re one of the leading designers and fabricators of advanced manufacturing, testing and inspection technologies.  

Laser trackers are the most efficient tool for correctly aligning precision machinery. As a result, they are an invaluable addition to any production line or workshop where dimensional inspections are routinely performed. A laser tracker can measure one of two distance meter types – interferometer and absolute distance meter (ADM). Plus, they can do this with a near pinpoint degree of accuracy, far greater than simply “eyeballing” it or relying on traditional measurement techniques.  

If you would like a laser tracker designed to your specifications, get in touch with ETG now by calling +44 2476 428 500 

The Leading Developer of Laser Tracking Technologies  

At ETG, we’re immensely proud of our status as the UK’s leading manufacturer of industrial automation systems, assembly tooling, special-purpose machinery, automated assembly, and single and multi-robotic cells. Established in 1972, we’ve been at the forefront of designing and manufacturing advanced manufacturing, testing, and inspection technologies for nearly five decades.  

We possess a comprehensive range of advanced capabilities and state-of-the-art facilities that enable us to supply bespoke, high-spec inspection and testing technologies. If you’re in the market for laser trackers, you’ve come to the right place as laser tracking equipment is an area that we excel in. Inspection technologies play an important role in many areas of production and engineering. One example is precision machine alignment which is carried out to avoid safety issues, breakdowns, etc.  

While more conventional methods take time and are far less accurate, laser trackers make short work of these inspections and provide results with near-perfect accuracy.  

The ETG team are delighted to work with any client interested in laser tracking technologies. We are committed to designing, fabricating, and even deploying a world-class solution that will fit your company’s needs perfectly. Regardless of what sector you operate in, we have you covered as we’ve positioned ourselves carefully, ensuring that we can offer innovative solutions to the whole market.  

And because of our process-oriented approach, you can be confident that the technologies we supply will be designed with your needs in mind.  

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State-of-the-Art Coordinate Measuring Machines  

Laser trackers are often referred to as coordinate measuring machines. These are designed with a very specific purpose and are highly complex, so they should ideally be engineered by a specialist company, such as ETG.  

At ETG, we design, manufacture, and deploy state-of-the-art laser trackers (coordinate measuring machines) with the purpose of taking precise measurements of large equipment. These can be designed to work with any setup, regardless of how big or complex that setup might be. Regardless of your process, you can trust our team to supply you with the right laser tracker solution. We take the time to understand your requirements, ensuring these requirements are met.  

We’ll arrange a consultation during which we’ll ask you to describe to us what you need. We’ll ask questions to gain a broader understanding of the background and furnish you with advice and suggestions. Once we’ve come up with a concept to elevate your production line or engineering processes, we’ll provide you with a FREE, no-obligation quote.  

Every technology we develop is cutting-edge and designed to be completely future-proof. So should your setup change or expand, your new laser tracker will remain an integral part of the setup moving forward.  

What are Laser Trackers?  

A laser tracker is a piece of technology that’s designed to carry out dimensional inspection of large pieces of equipment, from stand-alone pieces to entire assembly lines. With a laser measurement device, entire setups, both internal and external, can be quickly and accurately inspected with the minimum amount of disruption caused. Customers won’t need to take apart anything, making laser tracking a fantastic time-saving investment.  

The purpose of a laser tracker is to take precise large-volume measurements of assemblies, tooling, and parts. Laser trackers feature a large working radial volume and accuracies up to 0.001in. When used in combination with advanced software, laser tracking technologies can provide rapid-fast, accurate feedback in real-time.  

This makes laser trackers ideal for precision machine alignments, such as:  

Such components and machines are often found in manufacturing and engineering setups and must be calibrated to ensure safety and performance. Laser trackers can also be used to provide feedback on critical geometry controls, making them useful for field machining. Said controls include cylindricity, circularity, parallelism, and planarity. Laser trackers simply cannot be beaten for precise measurements, no matter the circumstances.  

laser tracking

How Do Laser Tracks Work? 

Laser trackers work by measuring two angles and a distance. The laser is aimed at a retro-reflective target that’s held against whatever object is to be measured. The path is retraced as the light is reflected, and it then re-enters the laser tracker at the same position it left. As the light re-enters the laser tracker, some of it goes to a distance meter. The distance meter measures the distance from the tracker to the SMR. At this stage, one of two distance meter types may exist – interferometer or absolute distance meter (ADM).  

Absolute distance meter or ADM provides the added benefit of it being a ‘point and shoot’ system, which makes it a far simpler version to work with. The distance to the target is measured automatically, and this occurs even if the beam has previously been broken. The semiconductor laser produces infrared light that reflects off the SMR and re-enters the laser tracker, at which point it’s converted into an electrical signal.  

Internal circuitry analyses the signal, determining the time of flight and multiplying this value by the speed of light in the air. This gives you the distance from the tracker to the SMR.  

Distance measurements can be either absolute or incremental. An interferometer is used to obtain incremental measurements along with a frequency-stabilised helium-neon laser. Absolute measurements, as discussed above, have undergone something of a transformation in recent years. However, the accuracy of ADM is now easily on par with interferometers.  

Benefits of Using Laser Trackers  

There is a multitude of reasons as to why you should be using laser trackers versus traditional methods. Precision is possible, even in an external environment where every variable cannot be controlled. Laser technology advancements allow for a level of precision that far exceeds what’s possible with traditional methods of metrology. This results in benefits, such as:  

  • Versatile Mount   
  • Small, Lightweight Design  
  • Easy to Use   
  • Continuous Point Measurement  
  • Super-Fast Single Point Measuring   
  • Highest Precision and Accuracy   

Thanks to the versatile mount, the laser tracker can be positioned upside down, sideways, or directly on the part being measured. And thanks to the small, lightweight design, laser trackers are portable, so they can be easily carried out into the field.  

A single operator can operate laser trackers with a computer. While a two-person crew is recommended for efficiency, this flexibility does make laser trackers an accessible option for one person alone. In addition, through continuous point measurement, points can be measured continuously, enabling the tracking of critical areas, thermal growth and shrinkage, moving machinery, etc. This is all possible without the need for human interference.   

Modern laser trackers can record 3-axis measurements in a fraction of a second, enabling super-fast single point measuring. Combine a tracker with additional accessories, and it’s possible to mass-collect data points.  

No other technology can provide the degree of precision that laser trackers can outside of a controlled laboratory environment. Laser trackers are considerably more accurate than optical measurement because of a real-world tolerance of one-thousandth of an inch. Optical measurement is subject to human error and measurement variations that don’t impact laser tracking system.  

ETG airport with map

Contact Us

Would you like to learn more about how we can assist you with aperture gauges? Then get in touch with ETG today by calling us on 02476 428 500.

Experts at Manufacturing Bespoke Laser Tracking Technologies  

Nobody else can compete with what we offer here at ETG when it comes to developing the most cutting-edge advanced manufacturing, testing, and inspection technologies. Our exceptionally skilled and experienced employees are dedicated to forging strong, long-lasting relationships with our clients. By fully understanding our clients’ needs and maintaining this close relationship, we create a strong dynamic, enabling us to exceed expectations while carefully managing small and large projects alike.  

We are undeniably the market-leading specialists when it comes to the development and implantation of advanced manufacturing, testing, and inspection technologies. Our eye for detail, commitment to quality, reliability, and focus on delivering exactly what the client wants sets us apart from our competitors. If you need high-spec laser trackers, you’ve come to the right place.  

Other Services Available  

At ETG, we’re proud to work alongside a whole host of sectors, from automation to automotive, medical, and modular. Clients frequently come to us for bespoke automation systems, assembly tooling, and more, and we’re able to tailor the technologies we offer to each respective sector’s requirements. We work closely with clients, devising supremely efficient automated processes that optimise operations while increasing speed and efficiency.

In addition to laser trackers, the team at ETG can cater to virtually any other engineering request, creating products and technologies that fit our clients’ needs. You can see a full list of our overview sectors on our website. As for what we can develop, just a few examples can be found listed below:



At ETG, we possess nearly 50 years of experience delivering aerospace solutions, ranging from production tooling to materials handling, flow lines, automation, and engine assembly. Our project managers actively seek to build strong and lasting relationships. This is crucial in the aerospace sector, where projects can often have long lead times. We’re an established engineering company with an excellent track record, sizeable and modern factory floors, and extensive facilities and capacity.

With our adaptable shop floors, we can even cater to contract manufacturing requests.


In the medical sector, products can often have a very short life, and so it can become a never-ending and frankly overwhelming task trying to stay abreast of the latest product developments. At ETG, we support clients throughout the product development lifecycle. We leverage best practices and apply top-notch technological advancement, bringing acceleration without compromise.

Our dedicated healthcare team are on hand to provide much-needed support with all facets of medical product and technology development. This includes Proof of Principle, Concept Simulation and Process Validation through to Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT). We can handle a single machine or an entire production line.


If you’ve decided to go modular, ETG is the team to call. Modular construction affords all the benefits of traditional construction with none of the drawbacks. Build costs are greatly reduced while lead times are vastly improved. At ETG, we possess an extensive range of modular capabilities and can handle manufacturing, assembly, automation, handling, joining, and more.

Why Come to ETG for Laser Trackers?

Here at ETG, we’re proud to be regarded as being at the forefront of advanced manufacturing technologies (AMT). We’ve been in the business of developing solutions for clients from many different sectors for nearly 50 years. In that time, we’ve solidified our position as the go-to ETG experts for countless businesses, local, national, and global. Our ability to diversify across different sectors has made us somewhat of an authority when it comes to advanced manufacturing technologies.

We proudly offer capabilities not offered by our competitors, such as scalability, quality, and reliability. Whatever you need developing for your business, we’ll work with you to see that it’s accomplished. And we won’t stop there; we’ve helped deploy technologies and products for thousands of customers anywhere in the world for nearly half a century. We can even help with deployment in remote locations. So, you won’t be left contending with lengthy, complicated logistics.

Plus, thanks to our unbeatable aftersales support and quality standards that surpass ISO 9001:2008 standards, you can rest assured that, whatever your needs might be, you’re in capable hands.

Contact Us for Most Reliable Laser Tracking

Laser trackers are an invaluable tool, useful for performing dimensional inspections on large pieces of equipment. You won’t find a more specific type of laser measurement system suited for this particular task anywhere else. That’s why you’ll find these tools in use throughout the manufacturing and engineering industries. So if you’re in the market for a brand-new laser tracker or looking to outsource tasks requiring such a technology, you’ve come to the right place.  

It should be obvious by now that ETG is the best source of laser trackers in the industry, having read through the article above. To get in touch with our team to discuss your requirements, simply pick up the phone and call ETG on +44 2476 428 500. Alternatively, if you don’t have time to speak on the phone and would prefer to get in touch using a written method, you can do so. Simply fill out our online contact form or email