Current research projects

Image Measurement of insulated packaging
Image Non- invasive flow measurements
Image Preformance measurements of heat exchangers
Image Humidifier System for High-Purity Gases
Image Reduction of primary noise sources of fans
Image Investigation of materials
Image Influenced melting point of water by magnetic field
Image Cool Up
Image Hydrogen and methane testing field at the ILK
Image Electrochemical decontamination of electrically conducting surfaces „EDeKo II“
Image Air-water heat pumps
Image Test rigs for refrigeration and heat pump technology
Image Breakthrough Sensor for Adsorption Filters (BelA)
Image Refrigerants, lubricants and mixtures
Image Performance tests of condensing units
Image Lifetime prediction of hermetic compressor systems

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

Innovative small helium liquefier

Liquefaction rates from 10 to 15 l/h

Image

Filter Tests

INDUSTRIAL AND LABORATORY PRECIPITATORS

Image

Low Temperature Tribology

Tribological studies at cryogenic temperatures

Image

Refrigerants, lubricants and mixtures

Determination of working fluid properties

Image

Reduction of primary noise sources of fans

...using numerical and experimental methods with contra-rotating axial fan