A system for measuring timing relationship between two signals.

摘要

A system for measuring timing relationship between two signals for accurately measuring a timing relationship between signals comprises an E-0 measuring unit 110 and a waveform store and processing unit 210. The E-0 measuring unit samples on electrical signal of a device 101 under measurement by a strobe light Ps to measure a signal waveform. It has a very high time resolution power and uses a laser diode as a light source to simplify the optical system and reduce the size of the unit. The waveform store and processing unit 210 stores the electrical signal waveforms measured by the E-0 measuring unit 110 in a digital form, calculates a correlation of two stored electrical signal waveforms by a correlation calculation unit, and detects a peak of the correlation to detect the timing relationship of the signals. <IMAGE>