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Non-standard testing, TESTING

ANGULAR SENSORS MEASUREMENTS

  • Posted by Alina Spuma,
  • On February 18, 2022
  • 0
Under ESA contract number 20945/07/NL/IA, Alter Technology developed test benches for the characterization and qualification testing of 16bit (0.01º accuracy) Contactless angular sensors prototypes for telecom satellites’ extended life mechanisms. Angular sensors (AS) are position devices that provide the displacement in angular degrees concerning a fixed point or an arbitrary reference. The central performances to be measured are accuracy, hysteresis, and measuring range. These parameters must be measured before, during, and after applying environmental treatment during the qualification test campaign.
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Non-standard testing, TESTING

THERMAL CYCLING ILLUMINATED PHOTODIODES

  • Posted by José Luis Corral Castillo
  • On February 18, 2022
  • 0
160 ILLUMINATED PHOTODIODES Development of a complex setup capable of simultaneously measuring 20 solar sensors under homogeneous incident light During the last decades, continuous technology improvement has allowed the development of increasingly smaller and cheaper satellites. Different private companies figured out this fact and started to think about the possibilities of having their satellite constellation.
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Optoelectronics, TESTING

IR SOURCES THERMAL VACUUM CYCLING CHARACTERIZATION

  • Posted by Alejandro López Moya
  • On February 11, 2022
  • 0
Thermal Vacuum Testing is necessary to be carried out because the environmental conditions in the space are extreme, the combination of low pressure and extreme temperatures can cause the failure of a component. That is why in Alter Technology, we test the components in similar conditions.
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Optoelectronics, TESTING

NIR-VIS-UV LIDAR ECHO EMULATOR

  • Posted by doEEEt Media Group
  • On January 31, 2022
  • 0
Space agencies have carried out numerous research projects to develop systems to detect and quantify the concentration of Greenhouse gases, such as carbon dioxide and methane, which are the main drivers of climate change. The measurement system used for this purpose is called LIDAR (Light Detection and Ranging).
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Non-standard testing

Cryogenic 4K Capacitors Thermal Test

  • Posted by doEEEt Media Group
  • On November 30, 2021
  • 0
The lowest cryogenic temperatures achievable with liquid nitrogen systems are 77K. To lower temperatures further, it is necessary to use other systems. Helium cryostats can use this noble gas to cool a plate and reach temperatures of 4K. All these processes must be done in a vacuum since the air doesn’t allow the temperature.
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