A Robotic arm similar to the Mars Exploration Rover that uses a differential op amp configuration.
Assume that there is a linear potentiometer attached to the the arm with a voltage source such that the arm's position is related to the voltage. In particular 1V corresponds to a displacement of 10cm of the arm from a reference position.
This circuit produces a voltage (V1) that is proportional to the velocity of the arm.
Designed so that 1V corresponds to 1m/s
OPERATION:
v_arm => position
x1 ---> x2
v1 ---> v2
velocity = (dx/dt) => {d(v_arm)/dt}
$: v_1 = -RC * {d(v_arm)/dt}
REMEMBER:
- Velocity is the derivative of displacement
This is just a circuit from my PHYS:3410 hw. Any advice would be appreciated. Anything from the MOSFETs on is unnecessary, but I think it's cool.
