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Registered Member #135
Joined: Sat Feb 11 2006, 12:06AM
Location: Anywhere is fine
Posts: 1735
its not that old, think I got it in 2000. 30MHz with multiple functions, main setting, mix, XY and delayed, Z input of course, component test input.
The problem is my digital has no shutter speed.
Now here I got lucky! Last time when I was trying to capture the serial out from a Basic Stamp I couldn't get the camera to take a complete shot. I will have to look into minimum trace speed vs. camera capture.
Registered Member #15
Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
You can control the shutter speed indirectly though. Set ISO to lowest number, set aperture to highest setting should do it. Or if you don't have indirect aperture control, use landscape mode as this will put a small aperture in.
Registered Member #56
Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
wow, you have almost exactly the same scope as me Mine is the next model lower though, no component tester...
I haven't had any problems taking a picture of the output, unless I have the time base down really low (like .1s/div), then I need to turn down the lights and (if I want a decent shot) set up a tripod to hold the camera still...
If your camera is fully auto, then you need to turn of the lights in the room and if that doesn't solve it then you need to turn down the brightness on the scope too. That will let you takes pics of really slow things... Not that you would ever want to take a pic of a slow waveform
Looks nice! Now you need to add a little knob on the bottom and a little analog logic so you can set it to differential voltage, voltage/current, power, and 2 differential voltages...
Registered Member #135
Joined: Sat Feb 11 2006, 12:06AM
Location: Anywhere is fine
Posts: 1735
for the camera: If I darken the room too much the flash will go off automatically and wash out the picture. But its okay, I think I'll just try to keep the sweep relativily high for captures.
for the divider: I'm not sure about a selector option but that would be pretty sweet. You can read out all 3 outputs simultaneously. You have the voltage on each divider (common mode) and the voltage between the dividers ground isolated (differential mode) Power I would take the reading from the diff. mode to an ADC and the highest common mode voltage to an ADC, send that to an 8051 or variant and multiply the two together. So yea, I could see power measurement with this, allbiet pretty inaccurate. One step better would be to take many samples and then average it, then average the averages. I think that would be getting pretty close.
I dunno. Make one for yourself and have some fun with it! I think its going to be very useful in the future.
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Voltage Divider
