Current research projects

Image Solar Cooling
Image Low Temperature Measuring Service
Image Innovative Parahydrogen Generator Based on Magnets
Image Overall System Optimization of Refrigeration Plant Systems for Energy Transition and Climate Protection
Image Production of novel barrier layers on polymer materials to reduce hydrogen permeation
Image Reducing the filling quantity
Image High Capacity Pulse Tube Cooler
Image Test procedures for electrical components
Image Performance tests of refrigerant compressors
Image Measurements on ceiling mounted cooling systems
Image Air-water heat pumps
Image 3D - Air flow sensor
Image Breakthrough Sensor for Adsorption Filters (BelA)
Image Electrochemical decontamination of electrically conducting surfaces „EDeKo II“
Image Ice Slurry Generation
Image Development of test methods and test rigs for stationary integrated refrigeration units

You are here:  Home /  Research and Development


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 - Research and Development

Image

Reducing the filling quantity

How much refrigerant must be filled?

Image

Performance tests of condensing units

Does your condensing unit perform well?

Image

State of system and failure analyses

Cause of the failure unknown?

Image

Thermostatic Expansion Valves

Does the TXV function correctly?