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嗨,我现在正在享受我的新示波器,但不禁注意到刻度不是正方形。
它大约是15 x 12毫米。 来自Tektronix 7104,我习惯了一个完美的方形刻度。 安捷伦示波器不是方形的原因是什么? 以上来自于谷歌翻译 以下为原文 Hi, I'm enjoying my new oscilloscope at the moment but couldn't help noticing that the graticule isn't square. It is approximately 15 x 12 mm. Coming from a Tektronix 7104, I'm used to a perfectly square-shaped graticule. What is the reason that the Agilent scope is not square? |
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3个回答
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你真的在谈论OLD Tek 7104吗?
如果是这样的话......旧的范围是基于从CRT背面的“枪”发射的电子,并且当它们向前移动时被磁性偏转。 最简单的方法是使这些真空管在垂直和水平方向上具有相同的尺寸,因为除了其他方面之外,可以在每个方向上使用相同的磁性元件。 现代示波器采用LCD屏幕构建,几乎所有可用的示波器都采用4:3或16:9格式,这就是示波器所具有的。 所有测量均由示波器进行,垂直和水平设置均按分区进行。 有些示波器使用右侧的空间进行测量,这有助于对某些方面进行调整,但由于文本趋于水平,因此屏幕的顶部和底部也会被使用。 这是一个新世界。 人 以上来自于谷歌翻译 以下为原文 Are you really talking about an OLD Tek 7104? If so... Old scopes were based on electrons being fired from a "gun" in the back of the CRT, and being deflected, magnetically, as they moved toward the front. It was easiest to make those vacuum tubes the same dimension in the vertical and horizontal direction, since the same magnetics could be used in each direction, among other things. Modern scopes are built with LCD screens, and almost all of the ones available are either in a 4:3 or 16:9 format, that's what the scopes have. All measurements are made by the scope and the vertical and horizontal settings are in terms of divisions. Some scopes use space on the right side for measurements, which helps square things up somewhat, but since text tends to go horizontally, the top and bottom of the screen get used, too. It's a new world. Al |
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我很感激你的评论,但是...格子的形状与屏幕尺寸,宽高比和可用像素的使用有关。 每个设计师根据他们想要在任何给定时间在屏幕上显示的内容做出不同的选择。 这些天很少有人使用XY模式。 基于CRT的示波器很容易做到,并产生漂亮的图片。 现在通常有其他方法可以通过内置测量获得相同的信息,相位和相对频率。 人 以上来自于谷歌翻译 以下为原文 I appreciate your comments, but... The shape of the graticule is related to the screen size, aspect ratio, and the use of the available pixels. Every designer makes different choices based on what they want to show on the screen at any given time. Very few people use XY mode these days. It was easy to do for CRT based scopes, and produces pretty pictures. Now there are generally other ways to get the same information, about phase, and relative frequency, with the built-in measurements. Al |
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nvywyerwer 发表于 2018-11-27 13:26 对我而言,这相当于在现代电视上观看1960年代的老电视节目,画面被拉伸以填满屏幕。 示波器轨迹将被拉伸一点,但只要刻度经过校准就无所谓了。 杰克威尔科电子 以上来自于谷歌翻译 以下为原文 To me it's the equivalent of watching an old 1960's TV show on a modern TV and the picture is stretched to fill the screen. The oscilloscope trace will be stretched a bit but as long as the graticules are calibrated it really doesn't matter. Jack Willco Electronics |
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