Measurements of steep-front impulse waves

Abstract

presents p r o b l e m s s e l d o m e n c o u n t e r e d i n ordinary l i / 2 χ 4 0 microsecond i m p u l s e w a v e testing. T h e prob l e m consists of o b t a i n i n g linearly rising steep-front voltage oscillograms w h i c h faithfully r e p r o d u c e d , to a k n o w n scale, the voltage w a v e as seen by the test speci m e n . Stray or residual divider parameters, as w e l l as the m e t h o d s used in g r o u n d i n g , shielding, s u p p l y i n g power, and synchronizing the oscilloscope, m a y i n t r o d u c e spu rious responses i n t o the voltage oscillograms.