About Johan Leijtens

This author has not yet filled in any details.
So far Johan Leijtens has created 78 blog entries.

Changing temperature beyond satellite speed.

A trio of Lens R&D Sunsensors is changing temperature under vacuum at a speed that surpasses that of a real satellite. The plot shows the temperature profiles achieved for the BiSon Sunsensors in frame of the ongoing ESA life testing qualification and the MAUS Cubesat Sunsensor. Contrary to common high speed cycling (which is generally [...]

Changing temperature beyond satellite speed.2021-04-10T18:09:54+01:00

Tested beyond levels required

Last week the new custom developed photodiodes that are used in the Lens R&D fine Sunsensors (BiSon and MAUS) have been tested at the Delft Reactor Institute (DRI) to levels beyond what would be required for any known mission. Given the high radiation levels to be tested for the devices it had become impractical to [...]

Tested beyond levels required2021-03-21T11:06:12+01:00

mystery solved

Last year we performed what is called so called highly accelerated life testing (HALT) and during these tests it turned out that even though the setup is only taken to 125°C for 2000 hours, there was a failure on the pigtails that were connected to some of the Sunsensors. The root cause of this failure [...]

mystery solved2021-03-15T11:27:59+01:00
Go to Top