Deep Dive: Optical Inline Measurement Technology –
System Understanding for Industrial Serial Production Applications

From Individual Part Inspection to Process Evaluation

Process evaluation based on inline measurement data describes the systematic derivation of quality and process-state information from continuously captured measurement values within a production line. The objective is not only the inspection of individual parts, but also the stable assessment and control of the entire manufacturing process.

Industrial Machine Vision: Measurement on Red-Hot Steel

From Measurement to Process Information

Inline measurement systems generate continuous data streams. Only through structured feature extraction, trend analysis, and threshold evaluation can reliable conclusions about the current process state be derived. This extends traditional quality control toward continuous, data-driven process monitoring.

Difference Between Individual Part Evaluation and Process Evaluation

• Individual part evaluation: Pass/fail decision based on defined features.
• Process evaluation: Analysis of trends, drift, variation, and systematic deviations.

While individual part evaluation provides short-term decisions, process evaluation enables early identification of instabilities and helps reduce scrap and rework in the long term.

Technical Requirements

• Reproducible measurement data under serial production conditions
• Stably defined reference systems
• Consistent feature definitions over time
• Statistical evaluation and trend monitoring
• Integration into control and quality systems (e.g., PLC, MES)

Influence of Real Production Conditions

Vibration, temperature changes, or cycle-time fluctuations must not lead to systematic measurement shifts. Only when the measurement system and evaluation algorithms are designed robustly can trends be interpreted reliably.

QuellTech develops inline 3D laser systems not only to capture geometries but also to generate reliable process information. Through structured feature extraction and systematic integration into production lines, measurement data becomes a valid basis for process evaluation and quality stabilization. This approach follows a clearly defined project process ranging from feasibility analysis to serial integration.

Further information

Inline measurement solutions:
Optical Inline Measurement Technology

Project process – Precision step by step:
The QuellTech Process: Precision Step by Step

Do you have a specific Measurement Task?

We are happy to help you with that!

Stefan Ringwald

Technical Contact

Can we help you with Optical Inline Measurement?

If you have any questions about Optical Inline Measurement or would like a consultation from QuellTech on this subject, we will be happy to help.

We would like to help you to precisely evaluate your specific measurement task. Through an initial free test measurement of your application, we can give you an early assessment of the feasibility.

There is always potential for improvement, we will help you with that. Contact us for more information or to make an appointment for a consultation.

Contact us!

Would you like to assess the feasibility of your measurement task as early as possible? Contact us and take advantage of our free initial sample measurement.

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Technical Contact

Your technically competent contact, Stefan Ringwald, will be happy to help you.

Understanding your Challenge

Our aim is to fully understand your specific technical requirements for your current measurement task.

Well-founded Solution Proposal

Thanks to many years of experience with complex tasks in the field of 3D laser measurement, you will receive well-founded solution proposals from us.

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