Sunday, January 24, 2010

sewing with Greg

I went over to Greg's tonight to burn our propellant-filled straws in the strand-burner. The first task was to sew fine wires in the propellant so they can be used to determine the burn rate.

The strand burner is collecting 2 different bits of data: the speed that the propellant is burning through the straw and the pressure in the burn chamber. In the picture below, you can see the gigantic pressure transducer sticking off the burn chamber and the wires all connected to the other end. Everything goes into the box on the floor which then goes to the computer via the DATAQ.

Speaking of pressure transducers, Greg got a couple of these spectacular, tiny transducers!

Good stuff.

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