Products > Test Equipment
REVIEW - Rigol DS2072 - First Impressions of the DS2000 series from Rigol
Wim13:
--- Quote from: marmad on January 16, 2014, 05:17:49 pm ---
--- Quote from: Wim13 on January 16, 2014, 05:13:58 pm ---test the following, in your top picture change the level of T2, see if something changes..
you can even turn it of the screen .. and nothing changes..
--- End quote ---
Why would it? That wouldn't make any sense: it's not related to the Top Window - it's only related to the Bottom window. My first image has the DSO set to trigger when entering the *top* window.
--- End quote ---
So what is then the use of using two levels, if ONLY ONE is been used...???
marmad:
--- Quote from: Wim13 on January 16, 2014, 04:56:54 pm ---Edit: if you select type down, then T1 is useless
if you selct type rise , then T2 is useless
--- End quote ---
Forget thinking about them as RISING EDGE and FALLING EDGE - that's a mistranslation by Rigol. It's TOP WINDOW / BOTTOM WINDOW - or ABOVE / BELOW.
--- Quote from: Wim13 on January 16, 2014, 05:20:05 pm ---So what is then the use of using two levels, if ONLY ONE is been used...???
--- End quote ---
Window trigger
This trigger detects the moment when the waveform enters or leaves a voltage range. This allows you to search for overvoltages and undervoltages at the same time. In Figure 10, a 5 volt power supply is monitored with thresholds of 4.5 and 5.5 volts. The window trigger would detect both the positive and negative excursions outside this range. The Direction control specifies whether the trigger operates when the signal enters the window, exits it, or both. The Threshold 1 and Threshold 2 controls define the upper and lower limits of the voltage window.
Wim13:
Yes , i know the definition, but my point is that it is NOT WORKING, in the RIGOL
According to the definition, the signal has to cross T2 ( in rise) to trigger the first event,
and then crossing T2 triggers...
BUT in the RIGOL trun T2 down to the signal so, it does not cross T2, just T1, and it still works..., that is NO window......
marmad:
--- Quote from: Wim13 on January 16, 2014, 05:28:32 pm ---Yes , i know the definition, but my point is that it is NOT WORKING, in the RIGOL
According to the definition, the signal has to cross T2 ( in rise) to trigger the first event,
and then crossing T2 triggers...
BUT in the RIGOL trun T2 down to the signal so, it does not cross T2, just T1, and it still works..., that is NO window......
--- End quote ---
No, it seems you don't understand the definition - otherwise you would understand it's working. The signal NEVER has to cross T2 - unless you tell it you want to trigger when it enters or exits the bottom window - or - either window. The attached image shows trigger on ENTER EITHER WINDOW:
Wim13:
Well oke, no problem, then we differ from opinion about that.......
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