The D-dot output voltage signal is proportional to the first-order micro component of the electric displacement vector in the space of sensor to time (\dot{D} or \frac{\epsilon dE}{dt}), which is thus called a D-dot voltage sensor.
The D-dot output voltage signal is proportional to the first-order micro component of the electric displacement vector in the space of sensor to time (\dot{D} or \frac{\epsilon dE}{dt}), which is thus called a D-dot voltage sensor.