Digitizer V/LSB ?
Hello,
I am using PXI digitizers (5122 and 5152) with LabView 8.0. I write the data in I16 binary format to save disk space. How can I extract the Volts per LSB information to reconstruct the voltages afterwards offline ? I would like this information to go into a setup file that is written before any triggering takes place. Also, what I am looking for can be reconstructed from the true range, the gain and the number of bits, so extracting these would be useful, but I am not sure that what I select as range is the actual range (i.e. selecting +-5 V for instance seems to actually give something like +-4.8 V).
Philippe
Duplicate
Message Edité par BenjaminR le 11-07-2008 10:38 AM
Benjamin R.
R&D Software Development Manager
http://www.fluigent.com/
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Hello,
How can I get information with LabView about the PXI digitizer I am using, like its name (e.g. PXI5122), gain and number of bits or V/LSB ?
I see that some of this info is available in VI "niScope Fetch Binary 16", but I would like to get the info before fetching any waveforms (to write a setup file). Also, that particular VI doesn't seem to provide the digitizer name. I can find the resource name, but that returns a slot, which is not exactly what I want, since we may move the digitizer around.
I am using LabView 8.0 on Windows XP.
Philippe
Solved!
Go to Solution.Hello Philippe,
If I understand, does it mean the LSB (Least Significant Bit) ? One LSB is the voltage change increment corresponding to an LSB change in the digital value :
1 LSB = Input Range of ADC / Gain
2number of ADC bits
For example, the AT-MIO-16X can settle to +- 0.5 LSB (or
+- 76.3 µV) using a gain of 1 and an input range of 10 V.
+-
0.5 LSB = ( 10/1 ) *0.5 = 5 = +- 76.3 µV
216
65,536
Otherwise if your first problem is solved, please mark this thread as solved and post a new thread with your question.
Regards,
Message Edité par Steve Mohamed le 11-06-2008 05:15 AM
Steve M.
National Instruments France
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>> Vidéo-t'chats de l'été : présentations techniques et ingénieurs pour répondre à vos questions -
How do I find the digitizer for a channel?
I am trying to make a VI that is generic and is configured via a single config file. The file currently lists all the physical channels along with other things like the name and red/yellow limits for each channel. Currently, the sample rate is hard-coded in the VI but that should be in the config file too. The issue is that there can be only one sample rate for a given DAC card, so it doesn't make sense (to me) to add a rate column for each channel in the config file (I think it would be misleading to the operator). Instead, I'd like to create a task list that gives the name, DAC card, sample rate, and other parameters for each task. Then I should be able to figure out which channel is on which DAC by looking at the physical channel name ("Dev1/ai0"). The problem is that SCXI conditioner cards show up in the device list just like PXI ADC cards. The user could have named them anything in MAX, so I can't tell which ones are DAC cards. Is there a property node trait for channels that can tell me what its digitizer card is? I've looked around and can't see anything appropriate.
Thanks.Hi,
I have attached a simple program that can extract the device details on a PC. The code only currently tells you what type of device you are querying. You can easily extend it to find out which device is the digitizer(M series/E Series). I have saved it in LV 8. Not sure which version you are using.
Amit
Attachments:
Get Device Details.vi 10 KB -
Tecra M7 : new bios shutdowns the digitizer when closing the lid.
it took me a moment to find the problem : power saving ? attacking wacom ? no. some very stupid "feature" in the new bios from Toshiba.
quote from the toshiba download site:
*Version 1.70 - 2006-10-24*
*Incorporated Intel requirements for improved stability.*
**Made changes to ensure that the digitizer is not activated when the LCD is closed.**
*Version 1.60 - 2006-09-21*
*Changed the temperature parameters.*
i have no idea what they were thinking but since when i move i often close the lid, it's very, very annoying because i need to reboot in order to get my tablet working again. the more recent features are not a matter, i'll keep xp pro.
now give me a download link to get the version 1.6 of the tecra M7 bios. thanks in advance, i count on you.Hello
Fact is that Toshiba offers all tablet PCs with WXP tablet edition and many additional software that offer full functionality when you use this tablet PC in tablet or normal mode.
So, in my opinion you should use tablet edition and install all available Toshiba tools and utilities.
I dont have much experience with tablet PCs but if you check Toshiba Europe support and download page under http://eu.computers.toshiba-europe.com > Support & Download you will see that your Tecra is fully supported for WXP tablet edition and you can download all necessary stuff.
Interesting is that there is also ready for download Installation instruction document with exact installation order.
You can also visit Canadian download page under http://209.167.114.38/support/Download/ln_bymodel.asp and see what is available there.
I really think you need to install all Toshiba specific tools and utilities to have full control and possibility to use it in both modes.
Sorry I cannot tell you more about all this. -
ThinkPad Tablet 10 (TPT10) digitizer pen does not work
I have a new TPT10 that came with the ultra keyboard and digitizer pen. Pen is completely unresponsive, touch screen works fine. TPT10 is fully updated with both Msoft and Lenovo software/drivers.
did you ever get this resolved? I have the same problem.
-
I'd like to digitize audio from a minidisc player into my 15-inch (late 2013) Macbook Pro with retina display, but can't see a way to change the internal mic input. I understand that previous MacBooks allowed the headphone jack to double as a mic input, but mine doesn't seem capable of switching. I've tried using a mini to mini cable, with no luck, and also tried using a headset splitter adapter (3.5 mm 4-pin to 2x3-pin 3.5 mm headset splitter adapter from Amazon) because I read that that would allow me to plug in headphones and input audio. But in both cases, the only "input" available in my sound preferences is the built-in internal microphone. Am I missing something? Is there a way to digitize audio through the headphone jack?
Not likely. headphone jacks are usually output only devices unless specifically stated to support input, and even then, it may not be audio input that they support, but merely control input for volume and such.
You can get a USB audio input instead. i.e:
http://www.amazon.com/Griffin-Technology-iMic-Audio-Device/dp/B000BVV2IC -
I have numerous VCR family tapes I'd like to digitize and edit on my mac in iMovie. Any ideas?
Previous threads -
https://discussions.apple.com/message/7472827#7472827
https://discussions.apple.com/message/10371693#10371693
Ziatron's post in the second one is pretty comprehensive, and Roger Wilmut1's contribution in the first one.
Either way you need an analogue-to-digital converter and there's not a huge choice.
A couple of mentions are given for the EyeTV Hybrid for this job, but I don't know if that will import to iMovie. The ADC method should import directly. -
I used Ion Profile Pro turntable to digitize some old records. It worked fine for most of the records, but on five or six albums I get an error message saying "the original file can't be found" and it won't transfer them to my iPod Touch. However, the files are on my hard disk digitized and I can click on them and play them in Windows Media Player. When I go to iTunes, the records (or the CD created from the original records) exits in the iTunes libraries for sale. However, in some cases, the contents of the album offered for sale differs slightly from the original record, or the songs exist on different albums, but not the original album that I had. In some cases minor misspellings occurred on a few titles when they were entered in the ION softwareon my computer. In a few cases, it seemed as if ION did not recognize that there were two or three songs and ran them all together as one and again, my song list does not exactly match Apple's.
I own these songs, but iTunes won't put them on my iPod Touch. Is there anything I can do (short of paying for songs I already own) to get Apple to recognize these songs?You seem to have an iTunes problem, not an iPod problem. Try posting in the iTunes forum.
-
My digitizer is not responding however i have loads of iMessages which i can see because the lcd screen is visible but touchscreen is brokenI tried to go onto my ipod touch to look at them but when i looked it had not been signed in to iMessage which was after i received the iMessage on my iPhone . Is there a way i can get imessages sent to iPhone which i currently cannot access due to the touchscreen being unresponsive to load on my iPod iMessage which is connected to my phone number as well as my email?
maggielou wrote:
I thought that I had backed up my pictures to icloud, but when I looked online at icloud, I don't see pictures listed. However, a few of the recent pictures have shown up on my phone.
IHow could I get these from my MacBook to my phone?
Thanks again.
When you log into you icloud account on your computer you are viewing data that you sync to icloud not the backups. You can't view the backups.
Look at the two links I provided.
You still didn't answer any of my two questions I asked. -
How can I stop iMovie from making thumbnails of clips from past projects when first opening the program to digitize new clips for a new project. It takes forever for it and is very annoying. I have looked in the preferences and couldn't figure out what would disable this problem.
You do not need to move your cursor much when pressing the mouse button to cause the tab to tear-off/tear-away into a new tab. No "sensitivity" setting that I am aware of. The tab in the new window can be dragged back to the original window.
To disable the feature, install this: https://addons.mozilla.org/en-US/firefox/addon/bug489729-disable-detach-and-t/
*Read the information on the above page
*Set options for the add-on: Add-ons > Extensions, click Options next to the specific Extension (the 2 options are defined/explained in the above page).
'''If this reply solves your problem, please click "Solved It" next to this reply when <u>signed-in</u> to the forum.''' -
Where can I buy a touch screen digitizer for hp?
Hi
I have hp laptop with following properties:
Natural Silver 15.6" ENVY TouchSmart 15-j023cl Laptop PC with
AMD Elite Quad-Core A10-5750M Accelerated Processor, 8GB Memory,
Touchscren, 1TB Hard Drive and Windows 8.
Recently, my touch screen digitizer has broken and I had such a hard time to work with my laptop. I want to replace my broken digitizer by the new one, but unfortunately I couldn't find any web site providing me a link to buy a digitizer, although I searched a lot.
So, I just wanted to know if there is anyone here knows how to buy a digitizer for Natural Silver 15.6" ENVY TouchSmart 15-j023cl Laptop?
ThanksHi,
You can buy from the following Part store:
http://partsurfer.hp.com/Search.aspx?SearchText=E0M24UA
Or using part number (Display, item #1) and buy elsewhere.
Regards.
BH
**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. -
Windows 7 (x64) taskbar not working after using digitizer in tablet mode. x61t.
Hi,
I have Windows 7 professional x64 on my thinkpad x61t. I updated all drivers from windows update and also from lenovo.com. So far it's been about two weeks with no problems. But when I started using tablet mode (fold) for lecturing a class (clone video output) in tablet mode, the taskbar stops responding to my clicks. No error message or anything, but I just can't press the start button or anything on the taskbar using a stylus. The point on the screen moves and follows my digitizer/mouse correctly, but I can't press anything. The keyboard works though, so I can restart the computer to get it back working. What could be causing the problem?
I've tried installing lenovo-wacom dual touch driver, but it only caused more problems, so I had to remove it and use the windows update driver.
x61 tablet / multitouch / 3GB Ram / intel wifi / bluetoothWorkaround: Press 'Control + Alt + Del' to open task manager, and click 'Cancel'.
Stylus worked okay during teaching using Onenote. The problem starts when I start clicking the start menu and try opening other programs while in tablet mode. Once the loss of pointer, the only thing works is the keyboard.
I found a workaround for this. Press 'Control + Alt + Del' to open task manager, and click 'Cancel'. Then you can gain control again, at least until the next time you loose mouse/tablet control.
I currently have hotkey driver and sound driver (final driver for win7). For system interface driver / tablet button driver / tablet shortcut menu, I installed beta drivers. All other drivers were updated through Windows Update.
I'd appreciate if anyone finds a fix for this problem.
-Hoon -
My 3rd gen iPod touch has a very dim/dark screen and no screen response. I've restored it, still nothing, put a new screen and digitizer and still nothing. I've reset it a 1000 times and nothing works. Is there a way to fix this? It previously had "activation required" on the screen but now it just says "ipod" what do I do now?
Could be due to many things. You could have damaged something during the screen replacement. I would take it to someone with more experience.
-
Lenovo A1 - Touch screen not working after digitizer replacement
After dropping my tablet and breaking the digitzer, I ordered a replacement digitzer from a company in China. (It took about a month to get it) After watching this video, I was able to install my new digitizer and it finally looked new again....well at least the screen!
But.....when I powered up my tablet, the touch screen wasn't working..... I emailed back and forth with the company and they told me to install drive program, and send me a link to a site with a video, this site may have contained more than the video, but it was all in Chinese and I couldn't figure it out even with Google Translate. So I started researching. I thought I would try and load ICS on it, I thought, "Whats the worst thing that could happen?" it wasn't much more than a brick at this point anyways.
I found this website that let me through installing ICS on it. I had absolutly no expectations...but IT WORKED!!!! MY TOUCH SCREEN IS NOW WORKING!!!! I COULDN'T BELIEVE IT!!!
When I was researching for this problem, there was absolutly no posts anywhere for "Touch screen not working after new digitizer". So I wanted to share my experience.Yea you are correct.....it must be a hardware problem. You must contact service centre of Lenovo and get help from there.
You can say thank you by pressing the star left to my post IF I HELPED YOU -
6008 USB digitizer continuous data stream to be used by a third party software
Hi all,
I am trying to achieve a seemingly straight forward task and could do with some expert advice. I have a USB 6008 digitizer which is reading three channels of analogue data. I need to continuously stream data which can be accessed by a third party software for other things (signal processing, visualisation etc). I am proposing to record 10sec length of data and save it in a file in a designated location and repeat this and carry on as long as the programme is running. This will have generated a number of files each with fixed length of data which can be sequentially accessed by the third party program.I will then need to make this VI a standalone application which can be run a LabVIEW less machine.
The other method, may perhaps be, to use toggle between two data files- write in one file-save it, write in the second file and access the first file and overwrite the first file while access the second file.
Could anyone please help me with some ideas, expecially with the writing in files modules?The first approach is rather straightforward. Create the filenames programmatically, typically by adding 1 to a number at the end of the previous filename. The string and path manipulation functions can easily do this. This would produce a series of files named filename, filename1, filename2, filename3, filename4, ...
The alternating file approach is also feasible. The key there is coordination between the two programs so that they are not both competing for the same file. You need to have a plan for what to do with the data if the alternate file has not been released by the other program when LV needs to write to it.
Lynn
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