디지털산업정보학회논문지 (Journal of Korea Society of Digital Industry and Information Management)

  • 제12권4호
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  • Pages.25-31
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  • 2016
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  • 1738-6667(pISSN)
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  • 2713-9018(eISSN)
디지털산업정보학회 (Korea Society of Digital Industry and Information Management)
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FPGA를 이용한 네모파 전압전류법의 계측시간 분석

Determination of measuring time for decision of heavy metal ion concentration in Square Wave Voltammetry with FPGA

  • 투고 : 2016.11.16
  • 심사 : 2016.12.02
  • 발행 : 2016.12.30
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초록

In this research, to analyze the concentration of heavy metal ions in water, we tried to find the measuring time at which the faradaic electric currents flowing by the pure oxidation-reduction reaction from the pushing up mercury electrode of the stripping scan square wave voltammetry(SV+SWV) methods system becomes larger than the capacitance electric current. In order to do this, a method for analyzing signals using FPGA has been designed and we conducted 120 experiments using it. As a result, when the frequency of the square wave is 40Hz, The valid potential-current signal was measured from 96.6667% to 96.7155% of the end of the pulse of the forward and reverse, and the optimal signal was measured at 96.6667%. In addition, the experiment was carried out 40 times by changing the pulse height of the square wave from 10Mv to 40Mv. As a result, at a size smaller than 40Mv, there is little change in the magnitude of the potential-current, and an invalid signal was generated when it is out of this size.

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참고문헌

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