• Title/Summary/Keyword: 금속 융용명의 온도분포

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Measurement of temperature profile in molter metal using a cod camera (ccd 카메라를 이용한 금속 용융면의 온도분포측정)

  • 노시표;정의창;임창환;김철중
    • Journal of the Korean Vacuum Society
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    • v.12 no.1
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    • pp.64-69
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    • 2003
  • Using a high fewer electron beam gun (max. power 20 kW), Gadolinium (Gd, atomic number 64) metal was melted and the temperature distribution of melted surface was measured. With proper optical filters and the adjustment of aperture of lens, the radiation of melted surface was received by a ccd camera and its signal transferred to a computer. The real time monitoring of melted surface with a variation of electron beam Power was Possible and stable operation of electron beam was achieved. It was found that the max. temperature measured by a ccd camera with an assumption of blackbody radiation of melted Gd surface and adaption of Planet's law was above 100~$200^{\circ}C$ compared to that measured by a pyrometer in the same e-beam power.