How to get a pulse output at the start of a sine wave which is the input?

i am working on a comparator that generates a pulse for the positive cycle of a sine wave.but i want to get a pulse of shorter duration at the start of a sine wave (using labview) please suggest

Hello;
You can synchronize one of the general purpose counters your board have to the analog input operation. By doing that, you can have your analog input starting the counter operation which will generate the desired pulse. Moreover, you can even specify the delay and width of that pulse. For more information on how to synchronize DAQ operations you can refer to an Application Note named "Advanced Synchronization Techniques for Data Acquisition" which can be found at our web site.
Hope this helps.
Filipe

Similar Messages

How to get the sine wave sample of the input and output in the same time?

I discovered that the samples were acquired did not in the same time in my vi.Could you tell me how to get the sine wave sample of the input and output in the same time?
Output:9263;
Input:9201
Attachments:
singal requency.vi ‏104 KB

Hello Yun_Zhu,
Your VI looks like you started from an example, and you are on the right track.
To clarify are you trying to synchronize the input and the output waveforms? If you you will need to share a time base and a start trigger. Check out the synchronization examples from LabVIEW
Anthony F.
Product Marketing Engineer
National Instruments
Attachments:
HIODAQmxSyncMultiDev.png ‏70 KB

How to get automatic message output

Hi,
How to get automatic message output while creating po cause i have done all setting in the config but still it does not work what else i have to do.
And 1 more thing how we can maintain condition record for Printoutput & External send for one output type.
Regards,
Anant

Hi,
Please follow the below steops for the Output of Purchase Order
1. Condition Table
SPRO > Material Management> Purchasing -> Message -> Output Control->Condition Tables->Define Condition Table for Purchase Order
Select:
Purchasing Doc. Type, Purch. Organization, Vendor
2. Access Sequences
SPRO -> -> Purchasing -> Message -> Output Control->Access Sequences->Define Condition Table for Purchase Order
3. Message Type
SPRO -> Material Management-> Purchasing -> Message -> Output Control->Message Types->Define Message Type for Purchase Order
*4. Message Determination Schemas*
4.1. Message Determination Schemas
SPRO -> Material Management-> Purchasing -> Message -> Output Control->Message Schema->Define Message Schema for Purchase Order-> Maintain Message Determination Schema
4.2. Assign Schema to Purchase Order
SPRO -> Material Management-> Purchasing -> Message -> Output Control->Message Schema->Define Message Schema for Purchase Order-> Assign Schema to Purchase Order
5. Partner Roles per Message Type
SPRO -> Material Management-> Purchasing -> Message -> Output Control-> Partner Roles per Message Type ->Define Partner Role for Purchase Order
6. Condition Record
Navigation Path: SAP Menu-> Logistics -> Material Management -> Purchasing-> Master data-Messages- MN04
Here you can maintain the condition record.
All above steps u can do from transacton NACE also
now when u create po in the messages u will get the out put method as u have maintained in the above steps.
Regards,
Manish

I have LR 4 and now I cannot open the software because I get this warning: light room cannot start because it cannot create files in the temp file location.. C:/windows/temp. How do I fix this? I have removed and downloaded LR and even used by disc and st

I have LR 4 and now I cannot open the software because I get this warning: "light room cannot start because it cannot create files in the temp file location. C:\windows\temp\". I think I need to have LR open in a different place but I have no idea how to do that. Any help is most appreciated.
Alex

Jim
Thank you for your prompt reply. Unfortunately I am not that tech oriented and
cannot easily find that folder. I did notice when I was booting up the LR software
that I could accept the site where LR usually is set up or choose a place. I am
thinking that the standard location for LR software is corrupted and that if I
chose a different place it would work. I say this because whether I use my
original disc or download from adobe I get the same warning. I have 100GB of
memory on the hard drive and I have cleaned the computer with Mcaffee and free
software. What should I do next? I can't use this software and I doubt LR 5
would open up with my current problem.
Alex

Error Message: I keep getting this error when I try to download apps or songs : MZCommerce.CreditBalance Mismatch.Mobile_message Can someone tell me how to get rid of this? It is very aggravating when trying to use the IPAD.

I keep getting this error when I try to download apps or songs : MZCommerce.CreditBalance Mismatch.Mobile_message Can someone tell me how to get rid of this? It is very aggravating when trying to use the IPAD.

Try to go to Settings and then Store. Tap to your Apple ID and select View Apple ID. Now choose to check your payment information and when you're done tap Done. I had to rewrite my three digit code of the credit card and now it works.
Oh, I also activated Genius for Apps but I don't think it makes any difference.

HT1436 I have two hard drives on my G5(2004). How do I get to choose which hard drive is the start up disk when I turn on the computer? Is it the shift key I hold down?

I have two hard drives on my G5(2004). How do I get to choose which hard drive is the start up disk when I turn on the computer? Is it the shift key I hold down?

depending on which model of G5 and OS installed will depend on whether a key command will work
alt at start up may work, if it does not, use the start up disc setting in;
apple menu > system preferences > system > start up disc
of course, the second drive must have a compatible OS installed for it to be able to boot.

How to output a TTL signal from a sine wave [Please Help]?

Hi evryone!
I am a bit lost...
We make the acquisition of voltage (sine wave, 3Hz) which I simulated by a waveform generation in my VI. We want to convert this analog signal to a TTL and output it with a multifunction DAQ (6230).
I only used Analog to Digital.vi and DAQmx write.vi and I can't get it to work... I get a TTL which is not 3Hz and only If I input a frequency like 3.07 and not 3.00 !!
Did I forget something ?
Thanks for helping
Christophe
Attachments:
ADC.vi ‏26 KB

In your vi, you don't have DAQmx Timing setup. I don't know what the default value is. But the timing determines how fast the DAQ will output values. If not set correctly, you may see slight change in the output frequency. Another thing is that the timing is based on a master clock, like 50MHz. The clock gets divided down until it gets near the desired setting. So it may not be able to achieve 3KHz exactly. If you are getting 3.07KHz, this may be why. I don't know if there is anything you can do about it. Try using the timing vi and setting different sample rates.
- tbob
Inventor of the WORM Global

There was start up glitch on desktop, which changed the computers configuration, which requires activation on Adobe Photoshop CS, but am not able to get throug activation system and phone support has been disconnected.

here was start up glitch on desktop, which changed the computers configuration, which requires activation on Adobe Photoshop CS, but am not able to get throug activation system and phone support has been disconnected. How should I activate my software.

You are entitled to the CS2 version that will work without activation, since the activation servers were taken offline. Read the instructions and follow them on this page.
Error: Activation Server Unavailable | CS2, Acrobat 7, Audition 3

Since i changed to Firefox 4, now I no longer can view the lower portion of my screen which reveals the LOCK security feature. Please advise how to fix this?

Since i changed to Firefox 4, now i can no longer view the lower portion of my screen which reveals the LOCK security feature. Please advise how to fix this? if I don't hear back today, i will have to undo Firefox 4 completely

the lock symbol has been removed in Firefox 4 and replaced with the [[Site Identity button]]
You can get the padlock back by installing this add-on: https://addons.mozilla.org/en-US/firefox/addon/padlock-icon/?src=discovery-learnmore
To reinstate the status bar at the foot of the page (also removed in Firefox 4), install this add-on: https://addons.mozilla.org/en-US/firefox/addon/status-4-evar/

Anybody know how to get Acrobat 7.0 Standard to start working again on Windows 8?

Anybody know how to get Acrobat 7.0 Standard to start working again on Windows 8?

Hi w3oody,
Acrobat 7 Std. is a very old software and has not been tested and is incompatible with Windows 8.
Please consider purchasing the subscription to the latest version of Acrobat 11.
Regards,
Rave

When I went to turn the desktop on, the start up sound came on. Then the screen was white with an icon flashing. The icon is a file folder with a question mark on it. I cannot get it to fully turn on. HELP

When I went to turn the desktop on, the start up sound came on. Then the screen was white with an icon flashing. The icon is a file folder with a question mark on it. I cannot get it to fully turn on. HELP

Run a disk repair tool on the hard disk or install a new OS.
(59898)

I downloaded Safari 5.1 onto Mac OS 10.6.8 some time ago. Yesterday the back/forward arrows next to the url window changed to a , which adds the current url as a bookmark. I want the arrows back. What happened, and how can I fix this? Thanks. kammro

I downloaded Safari 5.1 onto Mac OS 10.6.8 some time ago. Yesterday the back/forward arrows next to the url window changed to a +, which adds the current url as a bookmark. I want the arrows back. What happened, and how can I fix this? Thanks. kammro

There's another way.
Right or control click the + then click Remove Item.
Just remembered that keyboard shortcut!
You're welcome

The box in my Photoshop Elements, which shows the size and types of brushes has shrunk to one unreadable line. How do I expand the box to its original size? I have tried dragging it open but nothing moves.

The box in my Photoshop Elements, which shows the size and type of brushes, has shrunk to one unreadable line. How can I expand this box to its original size? I have tried dragging it open but nothing happens and none of the tool boxes appear to give me an expansion option

Well, when you open the program, the splash screen, the window you see while the program is opening, should make that clear enough. For example:

I get an error when attempting to start genius. It says "Unsuccessful Action: The action you attempted to perform did not complete successfully. Please try again later." Help!

I get an error when attempting to start genius. It says "Unsuccessful Action: The action you attempted to perform did not complete successfully. Please try again later." Help!

From an existing Discussion:
Go to Safari --> Preferences
Click Security
Show Cookies
Type "apple.com" in to top search field
Select All
Click Remove
Click Done
Repeat the above to confirm they are gone (mine took two attempts)
Choose Update Genius again in iTunes.
iTunes 9 - can't update genius https://discussions.apple.com/thread/2151150

I've been getting this error message Lightroom cannot start because it cannot create files in the temporary file location.

I've been getting this error message Lightroom cannot start because it cannot create files in the temporary file location “/var/folders/lK/lKbPbq2OF0aPCbMnDc erE TI/-Tmp-”
I've also been getting others errors about cannot create or modify temporary files when trying to install other programs. Also some of my documents on my computer will not open and crash.
Any help would be helpful.
I've tried doing this as read not sure if it helps:
ls -Odel $TMPD
This is what I had in response:
drwxr-xr-x 36 root admin - 1224 Dec 9 00:29 /var/folders/lK/lKbPbq2OF0aPCbMnDc+erE+++TI/-Tmp-/

Which os version are you using?
What is Lighthouse?
Please describe in detail all you have attempted to do in order to resolve the issue.

How to get a pulse output at the start of a sine wave which is the input?

Similar Messages

Maybe you are looking for