About Xensor

Xensor is a high-tech company focusing on custom design, prototyping and production of MEMS sensors (micro-electro-mechanical systems), made using computer-chip technology.

Our expertise is in thermal sensors and related products:

  • nano calorimeter chips
    The calorimetry chips concern calorimetry in gaseous and liquid environments.
    The temperature range is -100 ºC to RT (room temperature) for the base temperature, and upper temperatures between 150 ºC for liquid applications up to 1000 ºC for gaseous environments.
    Temperature scan rates for the calorimeter chips are typically between 1 ºC/second and even up to 250 MK/second.
  • gas type / vacuum sensors
    The thermal conductivity sensors are used to analyze binary gas mixtures, for instance hydrogen in air.
    Compared to many other gas sensing techniques the advantages are:
    - very fast response time (< 1 second).
    - stable output.
    - no poisoning.
    - very suitable for hydrogen measurement.
    Main disadvantages are:
    - limited sensitivity (100-1000 ppm resolution).
    - non-selectivity of the sensor.
  • read-out electronics for the thermal conductivity sensors
    Sensors with read-out electronics are available, offering output signals such as USB, CAN, WIFI, analog in various packages.
  • accessories

Please refer to our Products page for more information.

Standard or Custom
Xensor has a range of standard sensors readily available. If your optimum configuration is not offered, it may be possible to develop a custom product for you, tailored to your specifications.

Often it can be worthwhile to first try out one of our standard sensors, to evaluate the suitability of their measurement principle. We are happy to advise you on the possibilities of the your requirements.

When developing a custom product, we usually do the following steps, some of them iterated if necessary.

  • feasibility study.
  • design.
  • prototyping.
  • production.

Many of our customers highly value the confidentiality of their custom development. With us your custom development is in trustworthy and capable hands.

On the Custom Projects page you can find some examples of commercialized developments.

Xensor's customers are industrial companies, research institutes and universities in the EU and the rest of the world, mainly in the following fields:

  • aircraft (gas measurement).
  • hydrogen and nuclear technology.
  • laboratory equipment (calorimetry and gas chromatography).
  • medical (gas measurement).
  • R&D  (calorimetry).

Xensor is a spin-off of Delft University of Technology, and has started in 1988. After 13 years of operation in Delft, in 2001 Xensor moved to Delfgauw, next to Delft at the opposite side of the highway A13.

In 1999 Xensor merged with Smart Sensor Devices, specialized in sensor signal conditioning electronics.

In 2003 Xensor started cooperation with Delft University on Hall sensors, resulting in the successful development of an ultra-low offset smart Hall sensor.
Xensor started several developments in the area of calorimeter chips, with Delft and Eindhoven University of Technology and Rostock University, and also with Anatech and SciTe in the south-east of the Netherlands. This resulted on the one hand in a product line of calorimeter sensors/chips widely used in fundamental research in fast calorimetry, and on the other hand in a standard laboratory instrument, the Flash DSC1, sold by Mettler-Toledo, for routine Fast calorimetry measurements.

Between 2006 and 2015, Xensor has participated in two large European Marie-Curie projects, Cellcheck and EngCaBra, dealing with the application of sensors to cancer research and diagnostics. Our involvement was studying the application of thermal measurement techniques in these projects. This resulted in the development of liquid-calorimetry applications for the Flash DSC1, some 25 years after Xensor developed the first liquid-calorimetry chips for Ciba-Geigy in Switzerland.

In 2011 Xensor started with thermal conductivity sensors with read-out electronics for application in hydrogen measurement. Since then, Xensor has delivered hydrogen sensing products to a number of national institutes and other customers in the area of fuel cell and automotive use of hydrogen, and for nuclear safety research.

In 2013 the signal conditioning electronics unit was successfully split off as a separate company, Sensixs Design, specializing in Hall sensors and Fingerprint Technology.

Since 2015 Xensor has been cooperating with CEA in France on developing novel sensors and sensor systems for hydrogen research concerning nuclear power plants.