| 摘要 |
PURPOSE:To read a measured values easily and precisely by displaying the measured value and a reference level (level 0) simultaneously by permitting a reference voltage pulse, which corresponds to the reference current level, to follow up a measurement pulse. CONSTITUTION:With a switch 11 off, the forward heating and measurement of a diode 4 to be measured are performed to obtain the same voltage current waveform with usual one, but when it is turned on, pulses from a pulse generator 9 for a reference value are sent to a control circuit 2, which causes the pulse to follow up a measurement pulse, so that the voltage and current waveforms of the diode to be measured are as shown by (e) and (f). Here, V0 and I0 are the voltage and current of the diode by reference-value pulses. Thus, the ground level is displayed all the time to obtain a measurement system for a pulse voltage having excellent precison without reference to variations in temperature and voltage. |
