| 摘要 |
<p>PURPOSE:To enable the simplification and cost reduction of the titled multimeter, in measuring voltage and a current in AC outputted from a generator as effective values, by simplifying the signal processing system thereof. CONSTITUTION:A DC output terminal 2 and an AC output terminal 3 are respectively connected to predetermined loads and voltages of DC and AC outputted from a generator 1 are supplied thereto. In this case, the DC current of full-wave rectification flowed into the DC output terminal 2 from the generator 1 is detected as voltage proportional to a current value by a detector 5 and a peak value is inputted to an A-D converter 14 while detected by a peak value detector 6. By this mechanism, the A-D converter 14 performs A-D conversion of voltage proportional to the DC current and the output data thereof is inputted to a microprocessor 15. In this microprocessor 15, the peak value outputted from the A-D converter 14 is multiplied by a definite value to calculate an effective value which is, in turn, transmitted to a digital display device 16 while this display device 16 performs the digital display of the DC current as the effective value.</p> |
