Current research projects

Image Cryogenic liquid piston pumps for cold liquefied gases like LIN, LOX, LHe, LH2, LNG, LAr
Image State of system and failure analyses
Image Panel with indirect evaporative cooling via membrane
Image All-in-one device for freeze-drying and production of biomaterial
Image Humidifier System for High-Purity Gases
Image Hybrid- Fluid for CO2-Sublimation Cycle
Image Testing of mobile leak detectors according to DIN EN 14624
Image High temperature heat pump
Image Overall System Optimization of Refrigeration Plant Systems for Energy Transition and Climate Protection
Image Energy efficiency consulting - cogeneration systems
Image Software modules
Image Test rigs for refrigeration and heat pump technology
Image Air-flow test rig for fan characteristic measurement
Image Reduction of primary noise sources of fans
Image Verification of storage suitability of cryo tubes
Image Development of a Cryogenic Magnetic Air Separation Unit

You are here:   /  Home


Calibration of Low Temperature Sensors

141,142

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