Different machines have different types of sensors for efficient and effective productivity. A three-wire current sensor picks up electric waves and displays their voltage digitally. The video explains how the different types of sensors work. The better you understand the different sensor designs and how they work, the better you can handle your machines.
Pull Down Sensor Design
A hall effect current sensor has three terminals, a ground terminal, a current supply terminal, and the signal wire terminal. Additionally, it is binary. Therefore, its output is either zero or the amount of voltage coming into the sensor. A pull-down design current sensor will have a resistor wire between the signal and the supply terminal. It senses and displays the current as generated until it is blocked, which causes the resistor wire to pull down. Consequently, it will display a zero current from the activity.
Pull Up Sensor Design
A current sensor with a pull-up sensor design has its resistor wire located between the signal wire and the grounding terminal. The resistor wire is known as a pull-down resistor. Therefore, a pull-up design current sensor displays zero volts until the activity in its electromagnetic field is blocked. It then sends the information to the computer to decide the next best step.