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Author(s): |
Xiaofeng Jin, Jiaozuo University, Jiaozuo,China ,454003
Hongzheng Li, Jiaozuo University, Jiaozuo,China ,454003
Yunpeng Liu, Jiaozuo University, Jiaozuo,China ,454003 |
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Abstract: |
Multifunctional handheld instrument mainly consists of the voltage and current sampling, choice of switching circuits, RMS conversion circuit, time division multiplier, ADC, optoelectronic sampling circuit and single-chip systems parts. With the 89S52 single-chip and high-performance ADC AD652 as the core devices, it can achieve single-phase voltage, current, power, phase and energy measurement, under the uninterruptible Power Supply condition it can manually or Automatically verify various instructions in the fields, including transformers, variable sent and single-phase watt-hour meter .Not a separate power supply to provide fully use of the software of 89S52, hardware compression, and fully able to shape light body, easily to carry.
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