论文部分内容阅读
示波管是在电子测量技术中广泛应用的一种电真空器件;同时,它也是一种利用电子束将电信号转变成光学图象的电子显示器件。早在1865年,法拉第研究真空中的放电现象时,首次提出了阴极射线这个名词。1878年出现了克鲁克斯真空管。然而,世界上第一支能够聚焦和偏转的电子束,并形成一定光学图象的电子束管,还是1897年制成的勃朗管了。由于勃朗管的缺点很多,故长时间未能得到实际应用。为了提高管子的发光亮度,后来在管壁上涂复了荧光粉。同时,随着高效率氧
Oscillographic tube is a kind of electric vacuum device which is widely used in electronic measurement technology. At the same time, it is also an electronic display device which uses electron beam to transform electric signal into optical image. As early as 1865, Faraday first proposed the term cathode ray when studying the discharge phenomena in a vacuum. In 1878 there was a Crookes vacuum tube. However, the world's first electron beam capable of focusing and deflecting electron beams and forming a certain optical image was also the Braun tube made in 1897. Due to the shortcomings of Braun tube, it has not been practical for a long time. In order to improve the luminous brightness of the tube, and later coated with phosphors on the wall. At the same time, with high efficiency oxygen