公开(公告)号：US3617869A

公开(公告)日：1971-11-02

申请号：US3617869D

申请日：1969-05-14

申请人： LIST HANS

发明人： GERMANN REIMAR ,  HAASE SIEGBERT

IPC分类号： G01L23/26 ,  G01P3/48 ,  G01R13/20 ,  G01M15/00

CPC分类号： G01R13/208 ,  G01L23/26 ,  G01P3/4802

摘要： A circuit for the generation of a deflecting voltage for the time-base deflection of an oscilloscope, which deflection is proportional to the speed of an engine and including a sawtooth generator controlled by the input pulses of a speed sensor on the engine. A variable attenuator regulates the slope of the sawtooth generator deflecting voltage so as to vary the frequency of the sawtooth voltage in accordance with the repetition rate of the engine ignition signals.