Industrial Terahertz and Millimeter Wave Measurement Systems: Development, Integration, and Turnkey Solutions

Terahertz-FMCW-Technology For High-Resolution Inline Measurements and Non-Destructive Testing

As a research institute at the interface between basic science and industry, we not only develop innovative measurement methods and technologies, but also consistently drive forward their implementation in industrial-grade hardware. We design, build, and integrate measurement systems as well as complete measurement facilities – tailor-made and ready for use.

We implement tailor-made solutions for our customers that are precisely tailored to individual requirements and existing conditions. This means also, that if there is no commercial solution for a measurement task on the market, we come into play. Since we develop our systems ourselves, we control both hardware and software entirely from a single source. This allows us to respond flexibly to specific requests and integrate our technologies optimally into existing processes.

Development of Modern Terahertz and Millimeter Wave Measurement Systems for Industry and Research

Our core competence lies in the development of modern measurement systems with a focus on terahertz and millimeter wave technology. For many years, we have been working intensively with terahertz time-domain spectroscopy (TDS) (photonic) and FMCW (Frequency-Modulated Continuous Wave) systems and have extensive expertise in the design, optimization, and application of these technologies.

Our measurement systems are

  • robust and durable, designed for long-term use
  • precise and reproducible in their results
  • reliable even under demanding environmental conditions

We support companies in both research and production with powerful and future-proof solutions.

Modular TDS Platform for Coating Thickness Measurement, Non-Destructive Testing, and Material Characterization

Our TDS system platform offers a versatile basis for a wide range of measurement tasks, including:

The systems can be used flexibly: as stand-alone benchtop devices in laboratories or technical centers, or integrated into industrial plants. The optimized 19-inch integration enables reliable and long-lasting operation in production-related or harsh industrial environments – stationary in assembly line production or flexible on robot systems.

Selection of Different Measuring Heads
© Fraunhofer ITWM
Selection of Different Measuring Heads
Terahertz-TDS Plattform in 19“ Gehäuse mit 3 HE
© Fraunhofer ITWM
Terahertz TDS platform in 19" housing with 3 U

FMCW Terahertz Technology for High-Resolution Inline Measurements and Non-Destructive Testing

In FMCW technology, we use compact radar modules with operating frequencies between 75 GHz and 500 GHz, depending on the application. By selecting the appropriate FMCW module, we optimize our systems specifically in terms of spatial resolution, measuring range, and penetration depth.

Using the appropriate combination of frequency, bandwidth, and antenna configuration, we precisely tailor each system to the respective testing task – from the detection of the finest structures to depth testing in non-conductive materials.

Our FMCW solutions are characterized by:

  • Very high measurement rates of over 10 kHz – ideal for fast inline processes
  • A compact and robust design
  • High penetration depths in most dielectric materials
  • excellent resolution – depending on the available bandwidth
  • stable and reliable measurements even in the presence of vibrations or temperature fluctuations

This makes the systems particularly suitable for non-destructive testing (NDT), for example for detecting inhomogeneities, layer thickness variations, delaminations, or inclusions in composite materials, plastics, and other dielectric materials.

Kompakter und handgeführter FMCW-Messkopf für Schichtdickenmessung und zerstörungsfreie Prüfung.
© Fraunhofer ITWM
Compact, handheld FMCW measuring head for coating thickness measurement and non-destructive testing.
Hand-held terahertz sensor
© Fraunhofer ITWM
Hand-held terahertz sensor. Ready for use without additional devices, standard socket sufficient.

Turnkey Measurement and Testing Systems: Complete System Development and Integration

In addition to developing individual measurement systems, we also implement complete turnkey solutions, such as pipe testing systems, FMCW handheld systems, and other complex testing and production modules. We support our customers throughout the entire development process – from the initial idea to a fully integrated, industrial-grade system.

Our services include:

  • Joint planning and requirements analysis
  • System design and mechanical construction
  • Development and construction of the complete measuring system
  • Installation, integration, and commissioning on site
  • CE conformity assessment
  • Documentation and training

This provides companies with a technically and regulatory compliant complete system from a single source – efficiently implemented and optimally integrated into existing processes.

FMCW-Handheld System zur zerstörungsfreien Prüfung
© Fraunhofer ITWM
FMCW handheld system for non-destructive testing
Pipe Inspection System
© Fraunhofer ITWM
Pipe inspection system for testing wall thickness during production.

Industrial Interfaces and Software Solutions for Seamless System Integration

For integration into existing production and IT environments, we provide interfaces based on common industrial standards such as OPC UA or TCP/IP. This allows our systems to be easily connected to control systems, process chains, or databases.

We also develop the software and user interface ourselves. Our customized GUIs are:

  • modern and functional in design
  • clearly structured with hierarchical operating levels
  • fully tailored to the user's workflow
  • equipped with security and access features for different user roles

This allows us to combine technological performance with maximum user-friendliness and process reliability.

Oberfläche einer individuellen Softwarelösung
© Fraunhofer ITWM
User-specific software solution