error voltage
  • A voltage which is proportional to the difference between a desired or reference value, and the actual or measured value. In radars, for instance, may refer to the difference between an actual position and a desired position.
  • In an automatic control system, a voltage that is proportional to the difference between the actual operating quantity and a quantity which would be within the specified parameters. Such a voltage is utilized for automatic correction.

Not what you were looking for?