How is the accuracy of a 3D scanner verified? For 3D scanning equipment, accuracy is far more than a single number on a product spec sheet — it is closely tied to the measurement method, reference standards, laboratory environment, equipment condition, and the calibration system in place. Only by establishing a scientific, standardized, and traceable calibration system can the measurement performance of 3D scanning equipment be evaluated in a more objective and reliable way.

As a company with a long track record in 3D vision digitization, Scanology (stock code: 688583) has built a professional calibration laboratory and received recognition from CNAS (China National Accreditation Service for Conformity Assessment) in 2022. This recognition represents more than just a credential — it reflects the company's long-term technical accumulation and standardized quality-management capability in the field of 3D measurement.

What Is CNAS Recognition?

CNAS, or the China National Accreditation Service for Conformity Assessment, is the national accreditation body responsible for accrediting conformity assessment bodies in China.

For testing and calibration laboratories, one of the key bases for CNAS recognition is CNAS-CL01, the 'Accreditation Criteria for the Competence of Testing and Calibration Laboratories,' which is aligned with ISO/IEC 17025.

To obtain CNAS recognition, a laboratory must undergo a rigorous competency assessment that systematically evaluates its personnel, equipment, environment, calibration methods, quality control, technical capability, and management system.

Therefore, CNAS recognition is not a simple certification of a single device or parameter. Rather, it evaluates a laboratory's competence to carry out testing and calibration work within a defined scope of recognition.

In the field of 3D measurement, this professional and standardized laboratory competence forms an essential foundation for ensuring the reliability of measurement results.

Why Does a 3D Scanner Need Calibration?

A 3D scanner captures the three-dimensional information of an object through technologies such as optics and algorithms, ultimately generating digital data such as point clouds and meshes. In real-world applications, scan data may be used for reverse engineering, product design, quality inspection, 3D printing, cultural-heritage digitization, education, and scientific research.

Different applications place different demands on data accuracy, but they all share one common foundation: The scanning equipment must deliver stable, reliable, and evaluable measurement performance. Yet a device's measurement performance cannot be judged solely from its product specifications.

Using reference standards and standardized calibration methods, the relevant metrological characteristics of equipment can be evaluated, and a traceable relationship can be established between measurement results and national or international standards. As a result, a professional calibration laboratory is a vital component of the R&D, testing, and quality-control systems for 3D scanning equipment.

Scanology's Calibration Laboratory Receives CNAS Recognition

Scanology has maintained a sustained focus on 3D vision digitization technology and attaches great importance to the accuracy and reliability of 3D measurement data. To build a more standardized metrology and quality-assurance system, the company established a professional calibration laboratory and developed its quality-management and technical systems in accordance with the requirements of ISO/IEC 17025.

In 2022, the company's calibration laboratory passed the assessment by the China National Accreditation Service for Conformity Assessment (CNAS) and was granted recognition. This means that, within the corresponding scope of recognition, the laboratory possesses both the technical and managerial competence to perform calibration work in line with relevant standards and specifications. Currently, the company's calibration laboratory is competent to calibrate in accordance with standards and specifications including JJF 1951, ISO 10360-13, VDI/VDE 2634 Part 2, and VDI/VDE 2634 Part 3, providing professional technical support for evaluating the performance of 3D vision measurement products.

Behind CNAS Recognition Lies a Complete Laboratory Competence System

A professional calibration laboratory is defined by far more than the possession of advanced equipment. From reference-standard management to environmental-condition control; from calibration methods to personnel competence; from raw-data recording to result verification — every step requires a standardized management process. Therefore, CNAS recognition represents a comprehensive assessment of a laboratory's technical capability and quality-management system. For 3D scanning equipment, this means a more standardized metrological foundation can be established — from R&D testing through to product quality control. It is also an important part of the company's long-standing commitment to technology R&D and quality-system development.

From Laboratory Calibration to Product Accuracy

For users, laboratory calibration ultimately comes back to one question: What do these standards and systems have to do with the 3D scanner in my hands? In practice, every stage — from the R&D and testing of a 3D scanner to its shipment — depends on the continuous verification of product performance. Through standardized testing and calibration, R&D teams can understand a device's actual measurement performance, validate the effects of product design and algorithm optimization, and provide a basis for product quality control. 

For users, all of this ultimately translates into more stable and reliable 3D data-acquisition capability. So the accuracy behind a 3D scanner is not just a parameter such as '0.03 mm' or '0.05 mm.' Behind that parameter lies a technical foundation built jointly by the optical system, algorithms, hardware, software, and the standards and calibration system.

Technical Accumulation Makes Accuracy Verifiable

From early 3D scanning technology R&D to today's complete technical system spanning 3D scanning, 3D measurement, and digital applications, the company has continued to invest in 3D vision technology R&D and quality-system development.

The establishment of a CNAS-recognized laboratory is an important component of the company's 3D measurement technology system.

Through a more standardized metrology and calibration system, the company continuously enhances the R&D, testing, and quality-assurance capability of its 3D vision digitization products, providing a reliable 3D data foundation for various application fields.

About 3DeVOK, SCANOLOGY, and SCANTECH (HANGZHOU) CO., LTD.

SCANTECH (HANGZHOU) CO., LTD. is a technology company specializing in the research, development, production, and sales of 3D scanning and measurement solutions. Under its dual-brand strategy, SCANOLOGY focuses on industrial 3D scanning and metrology, while 3DeVOK specializes in professional 3D digitization.

As the company’s professional 3D digitization brand, 3DeVOK provides 3D scanning solutions for applications including reverse engineering, automotive customization, 3D printing, education and research, art and design, and cultural heritage digitization. SCANOLOGY serves industrial measurement and inspection needs with high-precision 3D scanning technologies and systems. Both brands draw on the company’s expertise in 3D vision technology while serving distinct application needs.

This shared technical foundation supports the continued development of reliable 3D scanning solutions for professionals across diverse fields.

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