Aktuelle Forschungsprojekte

Image Characterisation of Superconductors in Hydrogen Atmosphere
Image Laseroptical measurement
Image Investigation of coolants
Image Low noise and non metallic liquid-helium cryostat
Image Cold meter
Image Behavior of multiphase cryogenic fluids
Image Air-flow test rig for fan characteristic measurement
Image Service offer for Leak Detection and Tightness Test
Image IN-SITU SWELLING BEHAVIOUR OF POLYMER MATERIALS IN FLAMMABLE FLUIDS
Image All-in-one device for freeze-drying and production of biomaterial
Image Micro heat exchangers in refrigeration
Image Innovative Manufacturing Technologies for Cryosorption Systems
Image Measurement of insulated packaging
Image Software modules
Image Corrosion inhibitor for ammonia absorption systems
Image High Capacity Pulse Tube Cooler

You are here:   /  Home


Low Temperature Measuring Service

Industry and R&D

Dr. rer. nat. Matthias Schneider

+49-351-4081-5126

Measurement of Thermal Properties at Low Temperatures

The cool down to cryogenic temperature causes thermal stress within the structure of components or complete devices. Furthermore thermal material properties could change crucial.

Samples can be proved down to 10 K via temperature cycling tests and/or measurements of the thermal conductivity, the coefficient of thermal expansion (also as integral for large sample dimensions) and the heat capacity. An experimental station with optimised conditions for measuring the thermal conductivity of different materials is under construction.

Thermal Tests (Cycling)

IndicatorMinimalMaximal
Cool down rate25 K/h200 K/min
Cool down cycles1Customer preference
Measuring accuracy1 %5 %
 Temperature range80 K (5 K)450 K
Sample preparationCustomer material
Sample dimensionup toØ 400 mm x 550 mm
other  dimenions on request

Thermal Conductivity

IndicatorMinimalMaximal
Measuring range10-2 W/(m K)103 W/(m K)
Measuring accuracy1 %5 %
 Temperature range10 K350 K
Sample preparationCustomer material
Sample dimensionup toØ 60 mm x 20 mm
other  dimenions on request

Heat Capacity

IndicatorMinimalMaximal
Measuring range10 J/(kg K)10 J/(kg K)
Measuring accuracy1 %5 %
Temperature range10 K350 K
Sample preparationCustomer material
Sample dimensionup to150 x 150 x 150 mm3
other  dimenions on request

Coefficient of Thermal Expansion

IndicatorMinimalMaximal
Measuring range10-6 K-110-4 K-1
Measuring accuracy0.1 %5 %
Temperature range10 K350 K
Sample preparationCustomer material
Sample dimensionup to200 x 200 x 200 mm3
other  dimenions on request

Your Request

Further Projects

Image

Cryostats, Non-Metallic and Metallic

position indenpendent, highest endurance, tiltable for liquid helium and liquid nitrogen

Image

Calibration of Low Temperature Sensors

According to the comparative measurement method

Image

High Capacity Pulse Tube Cooler

for Cryogenic High-Power Applications

Image

Thermal engines

Power Generation from Waste Heat