Thermography for material testing

Efficient non-destructive testing of a wide variety of materials and defect types

  • Non-destructive testing saves time and costs
  • Analysation of process immanent temperature differences or externally induced heat streams
  • Pulsing activation allows the detection of below-surface errors
  • In-line applications for permanent quality control possible

Details about material testing

Infrared camera systems minimize product waste from testing procedures

Material tests using thermography save time and costs as test objects will not be destroyed during process. They can be used for further testing or locating quality problems that could be corrected. NDT tests with infrared camera systems provide good solutions with greater applications as they can be used for a wide range of different materials and types of defects. A huge advantage is that thermographic testing procedures can be applied to larger areas at once in comparison to ultrasonic or other methods that focus on smaller zones.

Passive thermography as well as active heat flow thermography locates defects

A major difference in using thermography in material testing results from the source the measured temperature variations are derived. In one test mode, they could stem directly from heating the test object gains during its production process. This case is referred to as passive thermography. The other possibility is called active heat flow thermography or just active thermography. This is when the test object will be thermally activated by an external energy input for instance by a halogen radiator or a flash lamp.

Lock-in thermography is integrated in IRBIS ® 3 software

Active thermography can detect defects even more precisely when the activation of the test object will be carried out in a pulsed mode. Thereby it will be possible to detect faults which are located in deeper subsurface layers. Such analysis algorithms like the one of lock-in thermography are already available as a module of the IRBIS ® 3 software family. The adaptation to the specific application can be done quite easily with flexibility. InfraTec can also provide customer specific and complete active thermography test solutions.

Infrared cameras for material testing

  • Infrared camera ImageIR® 10300 Series
    Infrared camera ImageIR ® 10300 Series

    Measure extremely small micron sized structures on large targets.

  • Infrared camera VarioCAM® HD research 900
    Infrared camera VarioCAM ® HD research 900

    Recordings of objects undergoing fast temperature changes can be saved and analysed internally or on a notebook precisely and in razor-sharp quality.

  • Infrared camera VarioCAM® HD research 800
    Infrared camera VarioCAM ® HD research 800

    The ergonomic design, comprehensive camera functions and the integrated GigE interface allow for professional mobile and stationary use. 

  • Infrared camera VarioCAM® HD research 700
    Infrared camera VarioCAM ® HD research 700

    Designed for professional users, this infrared camera system supplies precise measuring results and the integrated GigE interface allows for storage and analysis of time-dependent temperature profiles.

  • Infrared camera VarioCAM® HD research 600
    Infrared camera VarioCAM ® HD research 600

    High geometric and best thermal resolution as well as excellent handling and extensive features allow its use for demanding inspection tasks.

  • Infrared camera VarioCAM® HD inspect 900
    Infrared camera VarioCAM ® HD inspect 900

    3.1 megapixels guarantees precise infrared recordings in brilliant photographic quality.

  • Infrared camera VarioCAM® HD inspect 800
    Infrared camera VarioCAM ® HD inspect 800

    The ergonomic design of this professional system allows for fatigue-proof, mobile use and supplies precise and razor-sharp infrared recordings even under harsh environmental conditions.

  • Infrared camera VarioCAM® HD insepct 700
    Infrared camera VarioCAM ® HD insepct 700

    Designed for professional users, this thermographic system provides precise measuring results and its robust light metal housing guarantees for long-term operation even under harsh industrial environments.

  • Infrared camera VarioCAM® HD inspect 600
    Infrared camera VarioCAM ® HD research 600

    High geometric and best thermal resolution as well as excellent handling and extensive features allow its use for demanding inspection tasks.

  • Infrared camera VarioCAM® HD head 900
    Infrared camera VarioCAM ® HD head 900

    Smallest thermal marks on large-scale or at long distance measuring objects can be detected exactly with 3.1 megapixels.

  • Infrared camera VarioCAM® HD head 800
    Infrared camera VarioCAM ® HD head 800

    The uncooled industrial camera offers stationary long-term operation for demanding monitoring tasks.

  • Infrared camera VarioCAM® HD head 700
    Infrared camera VarioCAM ® HD head 700

    This uncooled infrared camera camera is applicable for stationary long-term operation for demanding monitoring tasks in industry and research.

  • Infrared camera VarioCAM® HD head 600
    Infrared camera VarioCAM ® HD head 600

    The robust light metal housing, high geometric and excellent thermal resolution as well as a number of interfaces enable for stationary long-term operation for demanding monitoring tasks even under harsh environmental conditions.

  • VarioCAM® HDx research 600
    VarioCAM ® HDx research 600

    The highest resolution color TFT display of this device class, a 8 MP digital camera and robust light metal housing enable this high quality measurement instrument for universal measurement and inspection tasks.

  • VarioCAM® HDx inspect  600
    VarioCAM ® HDx inspect 600

    Control technical installations or inspect buildings thermographically with a thermal imaging camera that provides the entry to thermography at high-end level.

  • VarioCAM® HDx head 600
    VarioCAM ® HDx head 600

    Compact housing dimensions, minimal weight, robust housing and numerous interfaces allow easy integration of this thermal imaging camera into your existing system environments.

  • Infrared camera ImageIR® 9300 Serie
    Infrared camera ImageIR ® 9300 Serie

    Measure smallest details with highest geometrical resolution.

  • Infrared camera ImageIR® 8800 Series
    Infrared camera ImageIR ® 8800 Series

    Measure lowest temperature differences of smallest details with highest geometric resolution.

  • Infrared camera ImageIR 8300 hp Series
    Infrared camera ImageIR 8300 hp Series

    Measure infrared full frame frequencies with up to 350 Hz.

  • Infrared camera ImageIR® 7300 Series
    Infrared camera ImageIR ® 7300 Series

    Operate with material specific spectral thermography at large image format.

  • Infrared camera ImageIR® 5300 Series
    Infrared camera ImageIR ® 5300 Series

    Trigger your infrared camera at highest speeds.

  • Infrared camera ImageIR® 4300 Series
    Infrared camera ImageIR ® 4300 Series

    Measure temperature distributions using spectral filters precisely tuned to your materials.

  • Infrared camera VarioTHERM® InSb
    Infrared camera VarioTHERM ® InSb

    The thermal camera VarioTHERM ® InSb is particularly suited for thermographic measurements on specific materials such as metals, plastics or glass, as well as gases and flames.

Case studies


Thermal Stress Analysis of Metals

Thermal Stress Analysis of Metals

Stress changes during tensile testing provide information about material properties of metals such as tensile strength. With the help of thermographic cameras metallic solid bodies can be tested for such stress changes.

High‐End‐Thermography with ImageIR ® 8300 hp


Thermography for Optimisation of Installed Wind Turbines

Thermography for Optimisation of Installed Wind Turbines

Due to the decreasing number of suitable locations for wind turbines and the increasing push towards renewable energy sources, new activities have been introduced to improve the efficiency of rotor blades for wind turbines.
For several years now, thermography has been a valuable tool for investigating the boundary layer behavior on airfoils in order to aerodynamically optimise it.

Read more about ImageIR ® 8300 at Deutsche WindGuard Engineering GmbH


Test of Laser Welds with ImageIR® from InfraTec

Test of Laser Welds

Non-destructive testing methods are becoming increasingly more important in the industry. One reason is that they cost much less than other test methods. As a very elegant method, the active heat flow thermography method is now firmly established as a powerful method of non-contact and non-destructive testing of products of different manufacturing technologies.

Usage of ImageIR ® to test laser welds of body components


Thermographic testing of turbine blades

Thermographic testing of turbine blades

Today gas and steam turbine power plants by the SIEMENS AG are more than ever complex high-tech products. They provide a continuous and reliable electrical power supply for industry and population worldwide. They do this using fossil fuels very efficient and therefore exceptionally friendly for our environment. To achieve this highest quality of every single component is absolutely imperative. Thus heavily stressed parts like the turbine blades are tested with the latest measurement techniques for example with infrared thermography.

Read more about the use of ImageIR ® 8320 for quality assurance of Siemens AG