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can NI DAQ USB 6008 handle high frequency about 100KHz??

I have a project about Ultrasonik Testing..

my frequency is 40KHz..
and I will sampling the data >80KHz

can NI DAQ USB  6008 handle high frequency about 80-800KHz??

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Why haven't you looked at the product page, the manual, or the specifications?

http://sine.ni.com/nips/cds/view/p/lang/en/nid/201986
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Message 2 of 9
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I have seen it..

In Counter, It said that Maximum input frequency is 5MHz..

does it mean that it can handle frequency in kilos and I can use ADC to process the signal with it?

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sorry, I'm asian from Indonesian..

and Im beginner..

Im still doesn't know about the spesification in the datasheet..

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It's strictly an event counter for ttl signals and does not have any sort of adc. No accurate method of determining the frequency even if you do have a ttl signal.
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so, can you suggest me some advice to solve my problem?

I have to process the signal 40 KHz into spectrum with A-scan representation in labview..

what should i do ?

im so confused with the hardware and software..

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The Nyquist theorem is the fundamental basis for all sampled data systems. It states (as you a ppear to be aware) that to accurately reproduce a continuous signal from the sampled representation the sampling rate must be greater than twice the bandwidth of the signal.

 

To process a signal with a 40 kHz bandwidth requires sampling at greater than 80 kHz.  The USB-6008 has a sampling rate of 10 kHz for one channel. So, it cannot acquire the data you need.

 

You need to obtain a DAQ device which has a much faster sampling rate. If your ultrasonic signal is pulsed or swept in frequency, the bandiwdth of the modulation must also be considered. I would look for  a DAQ device which could sample at least 100 kHz and possibly even faster.

 

Lynn

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Message 7 of 9
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okay..

what's the type of device can handle 100KHz?

I'm waiting your advice...

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Message 8 of 9
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http://www.ni.com/data-acquisition/multifunction/

Call your local Sales Engineer for help.
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