A digital engine analyzer has an oscilloscope display and is controlled by microprocessors operating under menu-driven stored program control. The analyzer receives analog input signals from an engine being analyzed, digitizes the signals, captures the digital peak ignition voltage values for each cylinder and stores only these values for each cylinder over a number of successive engine cycles, and then simultaneously displays all the stored values for any one cylinder over a number of engine cycles to provide a historical display. Each peak value is stored twice and displayed twice to provide width to the value display and effectively produce a bar graph-type display.
申请公布号
US5247287(A)
申请公布日期
1993.09.21
申请号
US19910779520
申请日期
1991.10.18
申请人
SNAP-ON TOOLS CORPORATION
发明人
JONKER, GARY D.;GOVEKAR, CRAIG F.;MEEKER, MICHAEL B.;PIEHL, JAMES R.;PUTROW, MICHAEL C.;SNIEGOWSKI, JOHN C.