| 摘要 |
<p>IMPROVED DELAYED SWEEP SYSTEM FOR AN OSCILLOSCOPE An improved delayed sweep system is disclosed for an oscilloscope having main and delayed sweeps. A trigger pickoff circuit has means for providing a pair of preselected trigger pickoff points on the delaying sweep so that delayed sweeps may be generated in accordance with the two points selected. An alternating display mode facilitates presentation of the delaying sweep and both delayed sweeps in a single display, with the relative time positions of both delayed sweeps appearing on the delaying sweep as a pair of intensified zones. The difference in voltage levels between the first and second delayed trigger pickoff points may be applied to a properly scaled digital voltmeter to provide a direct readout of the time difference between the two points.</p> |
