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- Heat-flux transducers/platinum resistance thermometers (RTDs) placed intermittently along the outer surface to measure thermal flux
- thermocouples to measure the temperature of the system in cryogenic conditions
- quartz crystal microbalances (QCMs)/residual gas analyzers (RGAs)/ion and Pirani vacuum gauges to detect gases escaped through the walls of the tank
Cryocooler Performance Test: Benchmarking the efficiency and endurance of a cooling system at different thermal loads in a a thermal-vacuum chamber. Run neon through a representative tube loop (simulated piping system) to confirm it works.
- Checking neon gas flow: Coriolis Mass Flow Meter (or/both differential presessure sensor)
- Checking pressure/drops: pressure transducers
- Checking temperature: thermocouple along the entire system (cold tip of cryocooler, tube loop)
- Checking voltage of the cryocooler for efficiency measurements (in IEEE paper it said around 8 We/Wth)
- For anyone confused...the 8 We/Wth means that per 8 We of power, we reduce the thermal energy by 1 watt of heat
- We would also need someway to apply a heat load