Week 6
Our new circuit board allowed for more space between the amplifier and the capacitors and resistors. We put our components on the top of the circuit board, just in case more mistakes arise (we could always use the bottom of the circuit board).
Despite the new circuit board, we kept our redesign with the wires. Blue wire was still used for connecting the resistor and capacitor to the amplifier. Yellow wire was used to connect the other resistors to the Data Acquisition Board. A green wire went around the circuit board to act as ground.
When we tested the resistance, we realized we used the wrong resistors. The resistors we were using with the capacitors yielded 47 Ohms, but we needed a resistance of 47 k Ohms (see schematic from week 4 post). So we got new resistors with 47 k Ohms, soldered off the original resistors and soldered in the new ones.
Figure 1: Wrong Resistor (47 Ohms)
Color Bands: Gold, Brown, Black, Orange, White
Figure 2: Right Resistor (47 k Ohms)
Color Bands: Yellow, Black, Orange, Gold
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