Project title: Nitrogen Level Detector
CEA collaborators: SPEC
Project status: first prototype in 2021, one board wired and integrated into an enclosure
Keywords: nitrogen temperature measurement, solid-state relay, user interface with buttons and LEDs, AVR Atmel microcontroller
The objectives of this project were to replace SPEC’s aging nitrogen solenoid-valve control unit in order to ensure the automatic filling of four nitrogen bottles at SPEC. The use of solid-state relays and an analog measurement interface with an adjustable detection threshold provides flexible adjustment and ease of use. This is complemented by the intelligence of the AVR Atmel microcontroller and the use of a universal digital bus, which greatly facilitate system configuration as well as the safety of the nitrogen filling system and personnel safety.
