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BEARSat Thermal Switch

BEARSat Thermal Switch. University of Cincinnati Josh Cory Jacob Hause Eric Riedl Matt Urbainiak. Expected Results:. The test results should show a cycle of heating times and the temperatures that correspond to the temp needed to actuate the switch.

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BEARSat Thermal Switch

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  1. BEARSat Thermal Switch University of Cincinnati Josh Cory Jacob Hause Eric Riedl Matt Urbainiak

  2. Expected Results: The test results should show a cycle of heating times and the temperatures that correspond to the temp needed to actuate the switch. -The temperature of actuation is expected be a constant. -Actuation time is expected to decrease as pressure decreases. -The heating cycle should repeatedly produce sine waves when plotted against time.

  3. Actual Results:

  4. Conclusions: • Successful actuation of the thermal switch confirms the validity of the design. • From the data acquired, it was determined that the manufacturing process for the switch needs to be refined. • - Confirmation of actuation, and temperature of actuation allows for the next iteration of design to begin.

  5. Further Actions: • - Another iteration of the switch is going to be designed that is smaller and more accurately reflects the flight hardware for the UN-4 BEARSat mission. • - Alternative manufacturing techniques are going to be pursued to ensure the switch functions properly in a vacuum. • Additional vacuum testing will be done in the lab to confirm the new manufacturing methods. • A fail safe may need to be added to insure that the paraffin remains a working fluid.

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