hat
Peryodik ak o aza devyasyon (PARD): endezirab peryodik (tranch rid) oswa aperyodik (bri) devyasyon nan vòltaj a pwodiksyon pouvwa-ekipman pou soti nan valè nominal li yo. PARD se ki eksprime nan mv pik-a-pik oswa RMS, nan yon Pleasant espesifye.
eng
Periodic and random deviation (PARD): Unwanted periodic (ripple) or aperiodic (noise) deviation of the power-supply output voltage from its nominal value. PARD is expressed in mV peak-to-peak or rms, at a specified bandwidth.