detecting 50 micro second pulse

[ssnp]

Hi folks!

    I have to detect 50 mcroseconds pulse which aries between  about 900 microsends. I have lv 2011 maching and couple of NI USB. Is there any way forward form this point.   

[billko]

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@ssnp wrote:

Hi folks!

    I have to detect 50 mcroseconds pulse which aries between  about 900 microsends. I have lv 2011 maching and couple of NI USB. Is there any way forward form this point.   

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You can stare at the oscope - just don't blink!  Seriously, though, your question isn't even ready for LabVIEW yet.  What do you need?  Equipment recommendations?  Please be more specific.

[ssnp]

I want to detect the pulse in less amount of NI hardware purchse. I have further application when to develop when overcome this problem. Is there any NI harware which i can plug into my laptop with lv which can read IO less then 50 micro Second.

[Matthew_Kelton]

Do you need to measure the pulse width or just detect the pulse occured?

[crossrulz]

50us pulse correlates to a 10kHz square wave (at 50% duty cycle).  NI has DAQ cards that can sample at 1MHz.  I would recommend at least 100kHz.  I don't have time to do a search right now, but visit NI DAQ product site and search there.

[ssnp]

I have to measure it  and decide it is valid signal or not and process further

[Dennis_Knutson]

If it's a TTL pulse, you can use the counter on several of the mult-function DAQ devices. Browse the Products and Services link above or contact your local Sales Engineer.

[billko]

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@Dennis_Knutson wrote:

If it's a TTL pulse, you can use the counter on several of the mult-function DAQ devices. Browse the Products and Services link above or contact your local Sales Engineer.

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If a simple pulse detection is all you want, you could really do just about what I mentioned in jest... have a digital oscope trigger and then measure the pulse programmatically.  Just in case you already have one.  It's just a different way of doing it, and maybe it will save you money if you already have a digital oscope...