Current research projects

Image Calibration of Low Temperature Sensors
Image Development of test methods and test rigs for stationary integrated refrigeration units
Image Software modules
Image Non- invasive flow measurements
Image Investigation according to DIN EN ISO 14903
Image Solar Cooling
Image Test rigs for refrigeration and heat pump technology
Image Cryostats, Non-Metallic and Metallic
Image Production of novel barrier layers on polymer materials to reduce hydrogen permeation
Image Certification of efficient air conditioning and ventilation systems through the new "indoor air quality seal" for non-residential buildings
Image Development of a Cryogenic Magnetic Air Separation Unit
Image CFE-Test of Cooker Hoods
Image Tribological investigations of oil-refrigerant-material-systems
Image Multifunctional electronic modules for cryogenic applications
Image Software for technical building equipment
Image State of system and failure analyses

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Calibration of Low Temperature Sensors

Industry and R&D

Dr. rer. nat. Matthias Schneider

+49-351-4081-5126

According to the comparative measurement method

Accurate and reliable measurements are the requirements for high-quality research and development or industrial production. Using the comparative measurement method the following sensors can be calibrated:

  • Resistance Temperature Detectors (RTD) with positive temperature coefficient (like Platinum or Rhodium-Iron RTDs)
  • RTD with negative temperature coefficient (like Germanium or Cernox™ RTDs)
  • Diode and thermocouples.

With an automatic measuring station several temperatures according to a sample point table will be adjusted. The calibration is carried out with secondary thermometers that are calibrated by an authority. Furthermore a fix point check with LHe or LN2 will be performed. In addition, a calbriated Cernox sensor is available for measurements in the low temperature range. The measuring facility allows the calibration of about 30 sensors at once. There are continuous extensions for different sensor types.

Parameter

IndicatorMinimalMaximal
Measuring range1.5 K350 K
Measuring accuracy5 mK (1.5 ... 4.2 K)50 mK (80 ... 350 K)
Sample dimensioncommon sensor packages
Sample preparationnot necessary

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