Transcript Slide 1

Thermo-Cooler Controller
Kiefer, Mary, Molly, Sam
Update
• We ran into problems with our conditioning
circuit yesterday
▫ The input impedance of the oscilloscope was
dominating
▫ The small resistor was burning up
▫ Solution: Seek help from Brian Storey
• Pushes back our vacuum test a couple days
▫ Solution: Put random noise into model and start
solving for PID constants
• Had problems getting four-wire configuration to
work
▫ Solution: Built the thermistor circuit so that we
have A way to measure temperature
Current Assignments
• Wait for responses from Vanderlei/Dominik and
Brian Storey
• Verifying the PIC code
• Testing the PWM on PIC
• Created a testing setup with motor and “flag”
• Building the conditioning circuit
• Weigh other options
• Experiment with other ideas
• Continue working on the RTD circuit (less
important than it was before yesterday)