Outrageously Funny Word Dictionary :: Photelectrograph

👉 A photelectrograph is a type of oscilloscope that measures electrical signals. It consists of two parallel wires, one connected to the signal being measured and the other to a reference voltage. When the signal changes from one wire to another, the current flowing through the wires changes, creating an electric field in the circuit. This electric field can be used to measure the strength or direction of the electrical current.

photelectrograph