| 一种从阴极象推算显象管阴极电流密度的方法 |
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| 引用本文： | 叶毓林, 蒋鼎瑛. 一种从阴极象推算显象管阴极电流密度的方法[J]. 电子与信息学报, 1991, 13(6): 663-665. |
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| 作者姓名： | 叶毓林 蒋鼎瑛 |
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| 作者单位： | 中国科学院电子学研究所 北京(叶毓林)，北京显象管厂 北京(蒋鼎瑛) |
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| 摘 要： | 本工作利用电视和微处理技术,把整幅阴极象存入微机内存,经处理后推算出阴极电流密度。根据显象管阴极电流模拟值等于整幅图象的电流数字值之和的原理,可推出各象素的发射电流密度。因此本方法可直接对实用显象管推出阴极有效发射区中的电流密度分布。
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| 关 键 词： | 显象管 阴极象 电流密度 |
| 收稿时间： | 1990-07-16 |
| 修稿时间： | 1991-04-23 |
THE ESTIMATION OF THE CATHODE CURRENT DENSITY OF CRTs FROM CATHODE IMAGE |
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| Ye Yulin, Jiang Dingying. THE ESTIMATION OF THE CATHODE CURRENT DENSITY OF CRTs FROM CATHODE IMAGE[J]. Journal of Electronics & Information Technology, 1991, 13(6): 663-665. |
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| Authors: | Ye Yulin Jiang Dingying |
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| Affiliation: | Institute of Electronics Academia Sinica Beijing;Beijing Picture Tube Factory Beijing |
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| Abstract: | The estimation of the cathode current density of CRTs from cathode image by means of TV camera and micro-processing technique is proposed. It is supposed that the relation between the analog current and the summation of the digital current value of picture element is equal. Then the cathode current density can be obtained from the processed emission current density distribution curve. |
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| Keywords: | Picture tube Cathode image Emission current density |
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