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Old 5th October 2010, 12:49 PM   #1
sekhar is offline sekhar  India
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Default FREE PC BASED OSCILLSCOPE,SPECTRUM ANALYSER.FUNCTION GENERATOR

Hi frnds
this is sekhar . I just wanted to share a piece of software that i came across last night . it is a free pc based oscilloscope , using the sound card line in or microphone input , we can view and measure different signals.

here r a few details:-



Detailed Features about:

1.Oscilloscope (dual channel, xy, time division, trigger);
2.Spectrum Analyzer with amplitude and phase display (linear, log, lines, bar, octaves band analysis 1/3, 1/6, 1/9, 1/12, 1/24);
3.Wave-form generator with "custom functions", triangular, square, sinus, white noise and pulse generation (NO ALIASING);
4.Frequency meter (in time and frequency domain) and counter; in time domain by means of a real time zero crossing algorithm;
5.Volt meter with DC, true RMS, peak to peak and mean display;
6.Filtering (low pass, hi pass, band pass, band reject, notch, "diode", DC removal);
7.Memo windows (data log) for analysis and storage of time series, spectrum and phase with "triggering" events; possibility to save in various formats and display them with a viewer;
8.A TRUE software digital analog conversion (for complete signal reconstruction using Nyquist theorem) ;
9.Frequency compensation: one can create/edit a custom frequency response and add it to the spectrum analyzer spectrum ; added standard weighting curves A,B,C in parallel with custom frequency response;
10.Support for 8/16/24 bit soundcard by means of API calls;
11.Unlimited frequency sampling (depend from the capabilities of your soundcard);
12.Cepstrum analysis;
13.Cross Correlation;
14.Extended THD measurements, with automatic sweep and compensation.
15.ZRLC-meter with Vector scope, automatic sweep in time and frequency for automatic measurement.

I have used conventional analog scope in my college , but as my college is over i dont have any instrument to work with and i dont even have money to buy instruments . So i opted for a free pc based scope .may be u people have used such software in the past, please check this software and tell me whether is it any good . I cant do it because i cant cross reference my data with readings from a original scope.

here is the download link.just copy past it on it the browser and it will start downloading..

http://www.sillanumsoft.org/Download/VAsetup.exe

AND HERE IS A ADD ON FOR HIGH VOLTGE APPLICATIONS
as i am not very well versed with this type of software kindly tell me is it good enough ..

regards
sekhar
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Old 13th October 2010, 06:42 AM   #2
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seems it is a great tool, i like it
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Old 19th October 2010, 11:29 PM   #3
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I will try this one... wow thanks my friend
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Old 20th October 2010, 12:01 AM   #4
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I saw this touted elsewhere as an impedance meter, I don't think it works terribly well in that context because of hardware issues, but as for the rest, on first impressions it looks good. It has a spectrum analyser with good resolution and a tone generator. Time will tell when I've had a chance to trial it more extensively.

w
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Old 9th February 2011, 08:03 PM   #5
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Does anybody know of a forum or manual?
In particular I need to know how to calibrate.

The software runs well on a 800Mh laptop with 250Mb RAM
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Old 9th February 2011, 08:31 PM   #6
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I think I just found the answer in this PDF on page6
web.cecs.pdx.edu/~higginja/classes/ece332/lab/Lab1_Acoustic_Waves.pdf
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Old 9th February 2011, 08:34 PM   #7
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hi
greetings has anyone have this article in english ZRLC meter in NUOVA ELLECTRONICA
published in magazine no 242 article can be downloaded from site but in italian its nice
project
thanking you
andrew lebon
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Old 9th February 2011, 09:26 PM   #8
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THis might be close to what you are looking for:
An awesome ZLCR meter
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Old 23rd February 2011, 11:14 PM   #9
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Default scope

hi diyers
greetings anyone tried scope software and how is the results
thanking you
andrew lebon
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Old 24th February 2011, 12:16 AM   #10
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There is another thread on this subject:-An awesome ZLCR meter

I've used the software. I needed a low-frequency oscilloscope to look at signals from an IR remote receiver. The trig on my Telequipment has stopped working. I used a resistive divider to avoid blowing up the DAC, I used a cheap Behringer USB DAC so I wouldnt lose much if I killed it.

It worked OK, I guess the DAC is AC coupled since the trace was curved. I had to capture a few (hundred?) samples to memory and then view it. There was a slight problem with the zoom, I couldn't just select a section and fill the screen with it, it seemed to have only 2 zoom levels.

Other than that I haven't really used it in anger, but I've played with it and I think it has a good feature set. Maybe I'll build the ZLCR hardware.

w
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