BOTTOM WAVEFORM SIGNAL PROCESSOR FOR PARTICLE ANALYZING DEVICE
申请公布号:JPS63298029(A)
申请号:JP19870137299
申请日期:1987.05.28
申请公布日期:1988.12.05
发明人:MATSUEDA MASARU
分类号:G01N15/14;G01N15/10;G01N15/12;G01R19/04
主分类号:G01N15/14
摘要:PURPOSE:To simplify circuit constitution and to eliminate phase shift distortion by obtaining a crest value based upon the difference between the 1st peak holding value of a bottom waveform signal and the 1st peak holding value of the difference signal between the bottom side of a bottom waveform and the 1st peak holding value. CONSTITUTION:A 1st peak holding (PH) means 1 obtains a 1st PH signal M2 which is the 1st peak of the bottom waveform signal M1. A 1st difference signal generating means 2 obtains the 1st difference signal M4 which is the difference between the 1st PH signals M2 and the bottom waveform signal M1. A 2nd PH means 3 obtains the 2nd PH signal M5 which is the 1st peak of the difference signal M4. A 2nd difference signal generating means 4 generates the 2nd difference signal M6 which is the difference between the PH value M2 and M5. This difference signal M6 is the crest value of the bottom M3 of the bottom waveform signals M1. Consequently, the need for timing for the detection of the crest value of the bottom is eliminated and a phase shifting circuit, etc., is not necessary, so the circuit constitution is simplified and no phase shift distortion is caused.
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