random vibration signal (generation)

[dho]

we got a voice coil type vibration shaker. we use a signal generator and a power amplifier to drive the shaker. we can do some primitive sinusoidal vibration test (with an accelerometer, a oscilloscope). any stone age device we can use to conduct some random vibration, even just with a flat line on PSD ? thanks.
PS. most vib requirement, 5 to 2,000 Hz. RTCA/DO160, MIL-STD-810....

 

[IRstuff]

Sorry, I don't quite understand what you are looking for

TTFN
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[dho]

a random vibration signal generator.
thanks.

 

[IRstuff]

If you want cheap, you could possibly use a computer sound card output and run that into your amplifier, or any sort of arbitrary waveform generator like:

http://www.ebay.com/itm/5MHz-Arbitr...491?pt=LH_DefaultDomain_0&hash=item19e68a82a3

But the latter is just a higher frequency version of a sound card; it's just the latter will probably look less hobby-shop to a customer.

TTFN
faq731-376

Need help writing a question or understanding a reply? forum1529


Of course I can. I can do anything. I can do absolutely anything. I'm an expert!
There is a homework forum hosted by engineering.com:

http://www.engineering.com/AskForum/aff/32.aspx

 

[dho]

someone can write me couple lines in VB to have such random signal (5 to 2,000 Hz) to sound card ?
most cheap waveform generators do not limit to 2,000 Hz, i do not know how to insert a low pass filter.
thanks.