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Statistics: Posted by kevinsatterfield — Mon Oct 08, 2007 8:54 pm
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http://www.virtual-oscilloscope.com/hel ... wheel.html
Warren
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Statistics: Posted by mrbreau — Thu May 24, 2007 7:49 am
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Like now I dont know where to hook th eprobe up on a single cell and see wats happenning .....Im thinking i shuld hook the cell up and just touch the probe to the cathode but I dont know so im off on a search....Thanks Again!!!!
Statistics: Posted by kevinsatterfield — Mon May 21, 2007 6:48 am
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clarity -- those waves should be crystal clear maybe the width of the line is 1 to 2mm I think at most. If there not look for a control that might say ‘focus’ and fiddle with it.
volt/div -- As you figured out is how many volts you want to be divided per square.
sec/div -- Remember that the little dot that moves across the screen (for lack of correct terminology) is controlled by this, BUT when you set it (say 1ms/division) it takes that little dot 1ms to cross one of those little squares on the screen (Im not talking about the wave here Im talking about those squares that have been printed on the screen (anyway I think you get it
)). For example,
A square wave (of say 5 volts) takes up half a square (on the screen) and for the other half of the square (on the screen) it is a zero. You have the sec/div set to 2ms which means that the square wave has an on time for 1ms and an off time of 1ms. This means the duty cycle is 50%(its on for half the time and off for half the time). You can now calculate the frequency because frequency is measured in hertz which is cycles per second, and you take that 1ms on time and multiply it by how ever many milliseconds there are in a second (I think its 10^3 but I don't remember).
Slope -- I'm not actually sure what this function does but I have a feeling its to do with if you have two different frequencies, one on channel A and one on B, it will show you a slope and form that you know the phase difference. Or if there is a button called 'XY' that might do it as well but remember this is my best guess.
hold off -- This is like a fine tuning of the sweep speed similar to 'var sweep' but it directly affects the trigger.
Ok I think that’s a good chunk of the important stuff. Stay away from channels 3 and 4! They are useful for certain applications but will get a beginner confused. Stick with channels A and B they are the ones that count. The other two have some special functions but shouldn’t be relied on for measurements. They (channels 3 and 4) are sometimes related to the trigger to do other effects. Once you get a clear understanding of your scope you might find that they provide features you may want to use. Just for the records I have never used the other channels (other than A and B) and I also don’t know very much about them. Good Luck!
Statistics: Posted by Nick — Mon May 21, 2007 6:00 am
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Statistics: Posted by kevinsatterfield — Mon May 21, 2007 4:19 am
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