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Techniques of Cathode Temperature Measurements as Applied to Commercial Cathode‐Ray Tubes

机译：用于商业阴极射线管的阴极温度测量技术

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摘要

Thermocouple, optical pyrometer, and retarding potential techniques for the measurement of cathode temperatures in commercial cathode‐ray tubes have been investigated to determine their relative merits, limitations, and corrections. The thermocouple method is accurate and reliable provided necessary lead loss corrections are made. Application of this method to commercial tubes is limited by the expense involved. The optical pyrometer method is questionable when applied to an oxide‐cathode coating due to considerable spread in spectral emissivity data; however, the method is reliable when applied to the cathode base nickel. The retarding potential method shows good correlation to the other methods and is directly applicable to commercial tubes with no modifications required. However, limitations are imposed by a number of factors, notably the stability of cathode emission and leakage current levels.
机译：已经研究了用于测量商业阴极射线管中阴极温度的热电偶，光学高温计和延迟电势技术，以确定它们的相对优缺点，局限性和修正方法。如果进行必要的引线损耗校正，则热电偶方法是准确可靠的。该方法在商用管上的应用受到所涉及费用的限制。由于在光谱发射率数据中分布广泛，将光学高温计方法应用于氧化物-阴极涂层时值得商question。但是，该方法应用于阴极镍时是可靠的。阻滞电位法显示出与其他方法的良好相关性，无需修改即可直接应用于商业管。然而，限制由许多因素强加，特别是阴极发射和泄漏电流水平的稳定性。

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  • 来源
    《Review of Scientific Instruments》 |1960年第2期|共7页
  • 作者

    Coppola P. P.;

  • 作者单位

    Cathode‐Ray Tube Department, General Electric Company, Syracuse, New York;

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  • 正文语种 eng
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