We are working in Professor Kim’s Applied Dynamics Lab. From the team meeting on last Thursday, we learned that the ability to determine the direction of electrical current is important to the study of work (positive and negative) in our lab.

Tim continued evaluating the INA219 chip as a method of a current measurement through a servo motor. He first tried measuring the current into the motor then he modified the servo in order to measure the current through the DC motor inside. This proved to be a challenge since the current changes direction and grounding the INA219 chip shorts the DC motor.

Peter approached current measurement from a different angle, he used a signal-conditioning circuit to determine the direction of the electrical current. Combining Peter's circuit with a current measuring circuit will result in us knowing both the magnitude and direction of the current.