Current research projects

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Image Tribological investigations of oil-refrigerant-material-systems
Image Ionocaloric cooling
Image Energy efficiency consulting - cogeneration systems
Image Industry 4.0 membrane heat and mass exchanger (i-MWÜ4.0)
Image Low noise and non metallic liquid-helium cryostat
Image Micro heat exchangers in refrigeration
Image Air-flow test rig for fan characteristic measurement
Image Testing of mobile leak detectors according to DIN EN 14624
Image Innovative Parahydrogen Generator Based on Magnets
Image Performance tests of refrigerant compressors
Image Refrigerants, lubricants and mixtures
Image Multifunctional electronic modules for cryogenic applications
Image Development of a Cryogenic Magnetic Air Separation Unit
Image Innovative cryogenic cooling system for the recondensation / liquefaction of technical gases up to 77 K
Image Brine (water)-water heat pump

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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

Your Request

Further Projects

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Innovative cryogenic cooling system for the recondensation / liquefaction of technical gases up to 77 K

high performance efficiency, environmental friendliness, compactness, cost-effectiveness

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Intelligent innovative power supply for superconducting coils

Compact, powerful power supply with 4-quadrant converter

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Laseroptical measurement

PIV and LDA / PDA

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Multifunctional electronic modules for cryogenic applications

Electronic with less wiring effort - more than 100 sensors via one feedthrough

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Certifiable connection types in cryogenics

Detachable and permanent connections, adhesive bond / form closure / force closure