Aktuelle Forschungsprojekte

Image Micro fluidic expansion valve
Image Helium extraction from natural gas
Image Characterisation of Superconductors in Hydrogen Atmosphere
Image Air-water heat pumps
Image Test rigs for refrigeration and heat pump technology
Image Investigation of coolants
Image Innovative small helium liquefier
Image Intelligent innovative power supply for superconducting coils
Image Reducing the filling quantity
Image Electrochemical decontamination of electrically conducting surfaces „EDeKo II“
Image Performance tests of refrigerant compressors
Image Brine (water)-water heat pump
Image Micro heat exchangers in refrigeration
Image Innovative cryogenic cooling system for the recondensation / liquefaction of technical gases up to 77 K
Image Influenced melting point of water by magnetic field
Image Thermostatic Expansion Valves

You are here:   /  Home


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.

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

Image

High temperature heat pump

Using waste heat from industrial processes

Image

Air-water heat pumps

Test according DIN EN 14511 and 14825

Image

Micro heat exchangers in refrigeration

3D-printing of micro heat exchangers

Image

Electrochemical decontamination of electrically conducting surfaces „EDeKo II“

Improvement of sanitary prevention by electrochemical decontamination