Structure of the Human Brain
Structure of the Human Brain
复制标题
人脑的结构
DOI：
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发表时间：
1976
期刊：
影响因子：
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通讯作者：
M. M. Dewey
中科院分区：
文献类型：
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作者：
S. DeArmond;M. Fusco;M. M. Dewey
一种方法和扫描信号监视电路，用于保护扫描的电子管，特别是诸如电视摄像管的高灵敏度成像器件，在失去扫描电压时免受损坏。监视电路监视扫描电压，并通过使用互补选通信号产生数字信号，该数字信号具有用于正常扫描电压的第一信号电平和用于异常扫描电压的第二信号电平。数字信号的第二信号电平不仅指示扫描电压的损失，而且还指示扫描电压的过零点的不希望的变化。监视数字信号的信号电平，并且第二信号电平的检测可以导致禁止管的扫描或任何其他适当的保护措施。
A method and sweep signal monitoring circuit for protecting scanned electron tubes, particularly high sensitivity imaging devices such as television camera tubes, from damage upon loss of a sweep voltage. A monitoring circuit monitors the sweep voltage and generates, through the use of complementary gating signals, a digital signal having a first signal level for a normal sweep voltage and a second signal level for an abnormal sweep voltage. The second signal level of the digital signal not only indicates loss of the sweep voltage but also indicates undesirable changes in the zero crossing point of the sweep voltage. The signal level of the digital signal is monitored and the detection of the second signal level may result in the inhibiting of the scanning of the tube or in any other suitable protective measures.