| Week 38:
September 18-23, 2000. |
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2000 |
Gregers is absent Monday morning as Morten serves Gammel Dansk as a goodbye before going to England. The absence is excused by his brothers birthday, but none-the-less causes the most serious conflict in the group so far; Gammel Dansk is not greatly appreciated by Peter, either. A choice between the Carawarm and Ecoflex foils is to be made. Carawarm is suitable but expensive, whereas ecoflex is cheaper and more flexible but might not be able to sustain the temperatures needed. Thus, Carawarm is ordered along with a small piece of ecoflex. We talked to Jørgen Berrild at Eltek. He was helpful and gave us valuable information on various control principles, besides offering to help us further, should we need it. He also suggested that Eltek might have some equipment that we could use in the experiments, such as power transformers. Then he also made it clear that anyone who had not had Servo Control I + II could not consider himself an engineer. Inspired by JB, we concluded that an on/off relay control would be a non-optimal solution, considering the power needed for the foils and the resulting risks of power-bursts. Instead a TRIAC control supplied by OJ Electronics was chosen, along with a regulator and sensor from PR electronics. We ordered these products. Helped dismantling the climate chambers. The fact that we needed to use one of the chambers reduced the joy of helping. We talked to Jørn, who assured us that we would be able to use the chamber. A few days later that was modified to "a chamber". |
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