| 摘要 |
PURPOSE:To permit the quantitative measurement of leak condition without resting on the sence of workers. CONSTITUTION:The leak condition detector 1 consists of the waveform-shaping circuit 8 in which is put the primary voltage signal a of the ignition coil IG through the synchronizing signal cable 7, the synchronous circuit 9 by which to sends out the sampling signal c of a certain time width synchronously with the rising portion of the rectangular signal b sent out of the circuit 8 and also the reset signal d of a certain time width synchronously with the trailing portion of the rectangular signal b, the detection circuit 3 by which to detect the maximum value of the secondary voltage signal e input from IG through the high-voltage cable 2, the circuit 4 by which to compare the output signal g of the detection circuit 3 with an optionally settable decision level, and the display circuit 5 by which to indicate the results of the decision. Thus, it is possible to detect the leak condition at the time when high voltage applied distributionally to the whole of high-voltage circuit during the cranking drive. |
