| 摘要 |
PROBLEM TO BE SOLVED: To make information observable which has burst-shaped signal waveforms, through their correct acquisition. SOLUTION: Observation of waveforms appearing in burst-like form is made possible through following processes, where pulse signal Eo obtained in a sampling section 26 to inputted light signal P is given to a first channel terminal 60b of a digital oscilloscope 60, clock signal C is given to an external clock terminal 60a of the digital oscilloscope 60, and furthermore, gate signal G inputted externally is received at a second trigger signal generating means 28, second trigger signal Q2 is generated synchronously at a timing of transition of level of the first trigger signal Q1 to a predetermined direction during the period indicating acquisition term of waveform by the gate signal G, and then by inputting Q2 into a second channel terminal 60c of digital oscilloscope 60 to initiate acquisition of waveform data through the second trigger signal Q2. COPYRIGHT: (C)2006,JPO&NCIPI
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