Ultrasound A, B, C Scan

I am trying to do Ultrasound A,B & C Scan Using LabVIEW. I Have NI USB 6363 and NI 5133 Scope with me.
I am using HC-SR04 Ultrasound Sensor, and completed the Distance Measurement.
** I made the DefinedSignal.lvm from Backward Calculation **
Now what is the next step, can any one suggest?
Attachments:
Defined Signal.jpg ‏126 KB
Distance exp.vi ‏170 KB

> How many String objects are created?
>
I guess 5, is it right?
Nope. Just one.

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How to acquire data properly in a b-scan

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Unless you are using a very old machine, you should easily be able to store your data at a 1MHz rate. A three year old 650MHz Pentium III is capable of streaming to disk at 10MHz+, so 1MHz is absolutely no problem. You only have a few changes to make.
1) Do not use the .xls format. This is a non-native LabVIEW format and takes translation time. It is unclear from you question whether you are using ActiveX and storing in native Excel format or are using the LabVIEW VIs to store data in text based spreadsheet format (very slow). In either case, you will be much better off saving as a simple binary file. Use the Write File primitive. You can reach disk limited speeds this way. Store to disk in 65,000 byte chunks for maximum speed. If you need the data in a spreadsheet format, convert it after you are done. If you use a simple binary format, most analysis programs (e.g. MathCAD, Mathematica) can read it.
2) Consider using one file instead of many. Alternately, create all your files before you start. Creating files is a slow process. You do not want to do it while taking data. If you have a newer version of NI-Scope, look on your CD for a directory called sfpFile. It contains some LabVIEW VIs to create binary files with structure. They are somewhat difficult to use, but are tailor made for your application. They allow you to store multiple waveforms in a single binary file with relatively easy access.
3) Your data acquisition needs are not really clear. It appears you are taking 1000 data points every millisecond. What hardware are you using to acquire the data and what scan rate are the points taken at? What is the dead time between each 1000 point scan (if any)? If you are taking data at 1MHz, you are probably better off streaming continuously instead of taking data in separate records, if your hardware supports it. If you are taking data at 100MHz, your dead time is almost a millisecond, so you do not need to stream. Consider putting your save code in a separate loop from your acquisition code. This allows LabVIEW to multithread your application (works much better in LV7.0), resulting in better performance. Use LV queues to communicate between the loops. Use local variables to pass the data between the loops.
Finally, run the LabVIEW profiler to find out where your slow steps really are (in the Tools->Advanced->Profile VIs... menu). If these suggestions don't help or are not detailed enough, post more details of you data acquisition and we'll try again. You should be able to do this.
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HP LaserJet Enterprise 500 Color MFP M575 - Can't scan from Windows

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Replied on: http://h30434.www3.hp.com/t5/ePrint-Print-Apps-Mobile-Printing-and-ePrintCenter/HP-AiO-Remote-will-n...
TwoPointOh
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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HP AiO Remote will not recognize scan and copy function of HP Envy 120 printer

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TwoPointOh
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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Aardvark1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!

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Please click on the Thumbs Up on the right to say “Thanks” for helping!
Please click “Accept as Solution ” on the post that solves your issue to help others find the solution.
I work on behalf of HP

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Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

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**Click the KUDOS thumb up on the left to say 'Thanks'**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

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