Electricity: measuring and testing – Internal-combustion engine ignition system or device – With analysis of displayed waveform
Patent
1998-06-15
2000-01-25
Brown, Glenn W.
Electricity: measuring and testing
Internal-combustion engine ignition system or device
With analysis of displayed waveform
324378, 324 7612, G01R 1702, G01R 19257, F02P 1712
Patent
active
060182458
ABSTRACT:
A method and apparatus for detecting and displaying automotive fuel injector voltage signal pulse width which includes signal detection circuits for capturing the rising and falling edges of an input signal having positive and negative voltage swings is disclosed. Upon detecting a rising edge or a falling edge of a positive or negative voltage of the input signal, a corresponding software routine is executed to carry out the process of measuring the pulse width of a pulse of the input signal. The measured pulse width is then displayed in numerical and/or histogramic formats.
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Andersson Claes Georg
Villa Charles N.
Brown Glenn W.
Snap-on Technologies, Inc.
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