原帖由baikaishui于2007-07-27 17:18发表:
好几天没来了,今天来逛逛,新填贴子了。想翻译一段,可是。。。。
Viewing several related channels as a collapsed bus greatly simplifies the display of many simultaneous traces without losing information.
这一段中collapsed bus 应当怎么翻译呢?我想请教下版主。
我不懂这个行业,但是对翻译很感兴趣,希望多多指教!
原帖由baikaishui于2007-07-27 17:18发表:
好几天没来了,今天来逛逛,新填贴子了。想翻译一段,可是。。。。
Viewing several related channels as a collapsed bus greatly simplifies the display of many simultaneous traces without losing information.
这一段中collapsed bus 应当怎么翻译呢?我想请教下版主。
我不懂这个行业,但是对翻译很感兴趣,希望多多指教!
原帖由ck2366于2007-07-24 21:25发表:
Clearly, 100 channels are too many, but how many digital channels do you really need? Agilent continues to provide 16, the same number as in the first MSO. Tektronix offers 16 and LeCroy 18 although LeCroy’s MS-500-36 option is a 36-channel version. Yokogawa has opted for 32 channels as standard.
很明显,100个通道的确太多了,但是用户到底需要多少个数字通道呢?Agilent的主流产品按照其第一代MSO的设计仍然提供16个通道。Tektronix也是16个通道。虽然LeCroy的MS-500-36采用了36通道的方案,但其主流是18个通道。Yokogawa的标准配置选择了32个通道。
Digital channels can be grouped as buses for display and triggering. A handy feature is the capability to include a given channel in more than one group. This allows you to compare timing of a number of channels to a common signal.
数字通道可以组合起来显示和触发。一个有用的特性是在多个组合中包括一个给定通道的能力。这可以让你用一个公共信号来比较若干通道的时标。
请指教,谢谢!
今天仔细一看,其实后面的这句话翻译是有些问题的.力科的说明书中有这么一段.
Digital groups are very similar to analog channels—they can be turned ON or OFF, they can be increased in size and they can be positioned on the grid. However, digital groups have capability beyond that of analog channels. Each digital group can consist of up to 36 (18 with MS-250) digital lines.You can create up to 4 digital groups and each digital line can be used in as many or or as few groups as desired. You can choose to display the group as individual lines or as a collapsed bus view with bus data values calculated on screen within the bus trace.
这段话介绍了什么是"Digital group".它就象一个模拟通道,但是却远不止一个模拟通道的功能.它能够打开/关闭.也可以放大,在示波器的显示屏的格子上定位.它一般由若干数字通道组成,最多可以有36个数字通道.(前段中提到只有力科的MS-500-36有36个通道)在力科的示波器中你最多可以组合4个"digital groups".举个例子,设有A,B,C,D四个数字通道,假如你组合了4个"Digital group".那么你可以用A,C组成一个"Digital group",也可以是A,B,C或者A,B,C,D.每一个通道都可以成为你要组合的"Digital group"的一部分.
于是就有一个问题,这个"Digital group"怎么在示波器上显示.这就牵扯到你问到的"collapsed bus"."collapse"有塌陷,衰退,折叠,压缩多个意思.根据我的理解,这里应该作"折叠,压缩"理解.要充分理解,我们不得不再拉出来几个术语讲一下. “Bus View”, “Expanded View”,”Collapsed View”.
"Digital group"有两种显示方式,一种叫做“Expanded View”.这种方式是将组成"Digital group"的每个通道都展开来显示.
“Expanded View”方式
另一种显示方式叫做“Bus View”或”Collapsed View”,这种方式可以把若干个组成的数字通道折叠显示,就像一个总线信号.所以 "collapsed bus"可以翻译成折叠总线.
”Collapsed View”方式