# Analogies to oscilloscopes

by Lasha
Tags: analogies, oscilloscopes
 P: 22 So oscilloscopes are pretty expensive and I'm a high schools student,I don't think I'll get my hands on one of those.Are there any other ways to measure the signals(an graph it of course)?
 P: 18 If you want to make measurements to show behaviour of a signal over short timescales, then I think an oscilloscope is probably the only way to go. What exactly do you want to do?
 P: 22 I want to measure the Chua's circuit to detect a double scroll attractor.
P: 657

## Analogies to oscilloscopes

If the frequencies are low enough then you can use the soundcard in your computer - it has 2 channels of A/D at audio frequencies. You can find free software online for this (google soundcard oscilloscope).

jason
 P: 127 Have you heard of the Raspberry Pi, tiny computer, costs about 25 dollars? That combined with boxes such as this: http://bitscope.com/pi/ They have an oscilloscope package that hooks to the Pi, cost is under $300.00. That is a lot of money for a HS student for sure but maybe your professor can budget it in. It would help a lot of student activities, just use it with a laptop or tablet and you have instant oscilloscope. I also found this kit for$60.00, a lot cheaper! Basic but should work well enough for your attractor prject: https://www.sparkfun.com/products/9484
 Mentor P: 39,723 And for non-high-speed measurements, you can use a USB 'scope with your laptop or desktop PC: https://www.google.com/search?q=usb+...sm=93&ie=UTF-8
 P: 287 As for USB scopes, what cant I do with one compared to something like the OWON 5032e? I really want to be able to measure inductance (with a known cap) and design/troubleshoot RF antennas. owon 5032e on amazon