Thermal tests on pre-EM trays: set-up:
Thermal tests on pre-EM trays: set-up Procedures: LAT-TD-1037; Pre-EM Results: LAT-TD-1249 Service box
Pre-EM trays: some results:
Pre-EM trays: some results Silicon temperature delay 45 min Stability @ plateau: dT/dt < 3°C/hr Tchamber Tsilicon plateau 5 hr
EM Tray thermal levels:
EM Tray thermal levels The maximum temperature is to be confirmed
T-C: Thermal cycle (dummy trays)
T-V: Thermal vacuum (live tray) On orbit temperature range -15°C 30°C Trays to be cycled/time: > 4 (TBD)
EM Tray thermal sequence:
EM Tray thermal sequence The EM dummy trays will be tested at ambient pressure into the service boxes
EM Tower:TV Test Plans:
EM Tower:TV Test Plans TEM:
Voltage supply
Thermistors read-out
EM Tower thermal set up:
EM Tower thermal set up Additional thermocouples (TBR):
+Y sidewall center of the thermal boss of the tray number 1;
+X sidewall center of the of the tray number 1, on the center plane;
+Y sidewall center of the thermal boss of the tray number 19;
+X sidewall center of the of the tray number 19, on the center plane;
-X sidewall center of the thermal boss of the tray number 10;
-Y sidewall near the center of the tray number 10, on the center plane The tower has a large number of thermocouples in the read out cables that can be acquired by using the TKR DAQ system. The temperature control point for the cold part of the cycle will be the coldest thermocouple, while the control point for the hot part of the cycle will be the hottest one. Tower covered with a thermal blanket during T-V cycles.
EM Tower TV test sequence:
EM Tower TV test sequence
EM matrix:
EM matrix
TV plan & procedures:open items:
TV plan & procedures:open items Maximum tray temperature 50 Vs 60 °C
The mystery of Jeff Wang and T-V simulation
Thermal balance: what is that?
TEM: is it ready?
Thermistors: voltage or resistance modes?