PHYSICS GROUP
Thermophysical Properties Laboratory
About Us
Thermophysical Properties Laboratory performs traceable measurements to understand the thermal behavior of materials. Thermal conductivity, thermal resistivity, eigenheat, thermal diffusivity, thermal expansion, emissivity, heat flux, calorimetric and hyperspectral measurements are the main studies performed in this context. The laboratory is especially structured for thermal insulation materials with low thermal conductivity; infrastructure is being developed for high conductivity measurements.
Characterization of IR calibrators, metrological calibration of pyrometers, radiation thermometers and thermal cameras are also within the scope of the laboratory. In addition, thermophysical and optical durability tests of optical components and coatings used in harsh environmental conditions (e.g. space applications), laser-induced damage threshold determinations and optical absorption measurements with <1 ppm precision are performed.
The laboratory actively participates in the BIPM Thermophysical Properties Working Group and EURAMET and COOMET technical committees and provides traceable, reliable and high precision measurement services at national and international level.
Fields of Activity
Traceable calibrations:
- Thermal camera radiometric calibration
Activities for the measurement of thermophysical properties of solid state materials:
- Measurement of thermal conductivity of thermal insulation materials,
- Measurement of thermal resistance value of thermal insulation materials,
- Summary,
- Thermal expansion,
- Calorimetric measurements,
- Determination of the emissivity of IR calibrators,
- Software infrastructure for the calculation of emissivity values of black body cavities with various geometries,
- Determination of laser-induced damage threshold of optical components in atmosphere and vacuum.
Training and counseling:
- Emissivity calculation advisory service
- Thermal camera calibration training and consultancy
Services Provided
Thermal Conductivity and Thermal Resistance Measurements
- 80 °C to 3500 °C range:
- Pyrometers
- Radiation thermometers
- Forehead thermometers
- Thermal cameras
- Black objects
- IR temperature calibrators
traceable calibration service is provided.
Eigenheat Measurements (Thermal Value Measurements)
- Trainings are given on radiation thermometry, calibration of black body and IR calibrators, uncertainty calculations and human body temperature measurement techniques.
Thermal Expansion Measurements (with Dilatometer)
- Dual and multiple benchmarking activities are organized at national level.
IR Calibrator and Blackbody Emissivity Measurements
- Dual and multiple benchmarking activities are organized at national level.
Thermal Camera Calibration and Sensitivity Measurements
- Dual and multiple benchmarking activities are organized at national level.
Optical Systems Characterization Support
- Dual and multiple benchmarking activities are organized at national level.
Technical Hardware and Equipment
| System | Capacity |
|---|---|
| 2 thermal conductivity measurement systems with enclosed hot layer method | 0.0015 W/m.K to 0.35 W/m.K thermal conductivity range between 25 °C and 80 °C Thermal conductivity range from 0.004 W/(m-K) to 0.5 W/(m.K) in the temperature range from 60 °C to 250 °C |
| Thermal conductivity measurement system using heat flow method | Thermal conductivity range from 0.004 W/(m-K) to 2.0 W/(m.K) in the temperature range -20 °C to 90 °C |
| Thermal expansion measurement system -180 °C to 2800 °C temperature range | -180 °C to 2800 °C temperature range |
| Differential scanning calorimetric measurement system | -180 °C to 700 °C temperature range |
|
FTIR (Fourier Transform Infrared Spectroscopy) based emissivity measurement system (installation in progress) |
8000 cm-1 to 350 cm-1 spectral range |
| 5.5 nm average resolution hyperspectral imaging system | 400 nm to 1000 nm range |
| InGaAs detector-based NIR hyperspectral imaging system | 0.9 to 1.7μm detection band range |
| Large diameter low temperature blackbody source (ɛ>0.98) Differential blackbody source | -40 °C to 150 °C temperature range |
| Large diameter blackbody source (ɛ=0.98 ± 0.02) | 50 °C to 600 °C temperature range |
| InGaAs detector-based thermal imaging system | 0.9 μm to 1.7 μm detection band range 400 °C to 1200 °C temperature range |
| Reference thermal camera for calibration system of thermal cameras | 3 μm to 5 μm detection band range 7.5 μm to 14 μm detection band range |
| Laser-excited damage threshold measurement system (atmosphere and vacuum environment) | 266 nm, 355 nm, 532 nm and 1064 nm wavelengths |
* Services in our laboratory are provided under ambient conditions of 21 °C ± 3.0 °C temperature and (45 ± 15) % rh humidity values.
PHYSICS GROUP
Projects and Collaborations
Connection: https://metrino.eu/
Connection: https://www.lidtlab.com/latso
Connection: https://mfmet.eu/
Connection:
Connection:
Development of photonics-based thermometers as an intermediate link to build infrastructure for quantum temperature measurements.
Establishment of a system for calibrating Thermal Cameras according to ISO standards and development of thermographic image analysis algorithms.
For more informationContact Us
Email: ume@tubitak.gov.tr
Phone: 0 (262) 679 5000