short-circuit impedance

6.21  short-circuit impedance. For a transducer which converts a mechanical or acoustic signal into an electric signal, input impedance of stated kind—mechanical or acoustic—when the output is connected to a load of zero impedance (i.e., short-circuit). Unit, newton per (meter per second) [N/(m/s)] or pascal per (cubic meter per second) [Pa/(m³/s)], respectively.