Current research projects

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Image Multifunctional electronic modules for cryogenic applications
Image 3D - Air flow sensor
Image Refrigerants, lubricants and mixtures
Image Calibration of Low Temperature Sensors
Image Electrochemical decontamination of electrically conducting surfaces „EDeKo II“
Image Measurement of insulated packaging
Image Testzentrum PLWP at ILK Dresden
Image Ionocaloric cooling
Image Corrosion inhibitor for ammonia absorption systems
Image Cool Up
Image Software modules
Image Behavior of multiphase cryogenic fluids
Image Performance tests of refrigerant compressors
Image Low Temperature Tribology
Image Energy efficiency consulting - cogeneration systems

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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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