GTK Frame Cooling – Thermal camera
Camille LigneauGeorg Nüßle
Andrea Francescon
µcool weekly 2July 25, 2012
Results first trial
Sensor• Heater painted matt black • Tests in atmosphere• Machine setpoint: 10°C (avoid condensation)• Long peek tubes, we don’t care about
additional ∆p
µcool weekly 3July 25, 2012
Results first trial
Sensor• 3W digital, 0.7W analog
1 2 3 4 520
25
30
35
40
45
50
Digital leftAnalogDigital right
Tem
pera
ture
(°C)
µcool weekly 4July 25, 2012
Comparison Cameras
Camera Resolution (Pixels)
RayCam 1884 160 x 120
AVIO TVS-600 320 x 240
FLIR i50 140 x 140
Motivation: resolution is not high enough to identify the features of our heater
µcool weekly 5
RayCam 1884
No power Dig : 1W/chipAna : 0.23W/chip
Dig : 2W/chipAna : 0.47W/chip
Dig : 3W/chipAna : 0.7W/chip
Massflow : 10g/sInlet t° : 15.5°C
July 25, 2012
µcool weekly 6
AVIO TVS-600
Massflow : 10g/sInlet t° : 15.5°CDig : 3W/chipAna : 0.7W/chip
July 25, 2012
µcool weekly 7
FLIR Thermal Camera
inlet outet20
25
30
35
40
45
50
Temperature along the mock-up at full power
Li2 - digLi1 - anaLi3 - dig
Tem
pera
ture
(°C)
Massflow : 10g/sInlet t° : 15.5°CDig : 3W/chipAna : 0.7W/chip
Middle digital heater doesn’t
work
July 25, 2012
µcool weekly 8
Conclusion
• The black paint does the job• The pictures a very good to explain the temperature distribution• Non of the cameras allows to distinguish between the chip and sensor• Cameras can identify hot spots, important for final ASIC• We would need a camera with high resolution and a lens for a short distance ….
July 25, 2012