triaxial accelerometer

Similar Questions

• Creation of several DAQmx scales for the axes of accelerometer

  I'm having a problem programmatically create customized for analog input with DAQmx scales.  Here's the background.  We are trying to develop a small Triaxial sensor for monitoring the twitching (it's a student project, I'm an "Advisor").  We have a Triaxial accelerometer that puts off voltage proportional to the components X, Y and Z of acceleration.  The accelerometer works a 5v power supply, each channel being a 1.5 v (offset) bias and a gain of 0.3 v / g, with a 10% of variability of these parameters (e.g. gain varies between 0.27 and 0.33 v/g).

  One can easily read the three channels of acceleration with an NI USB-6009.  "Proof of Concept" originally, we were easily able to measure muscle tremors, but noted that the channels were certainly not calibrated.

  I designed a calibration procedure which was fast, reliable and reproducible, requiring that the X, Y, Z tension measurement when the accelerometer was held at six direction without moving - the whole process takes 15 seconds.  But then, I decided to 'smart' (always a bad sign).

  I have never used custom DAQmx scales, but thought "why not use the values of calibration for the axes X, Y and Z to programmatically set custom for the three areas so all scales is in units of"g"and centered around 0 g".  I've defined a "Triax" task in my project - if I manually entered the scaling factors deduced my calibration, axes read all between + 1 and -1 g (depending on orientation) then the sensor was motionless.

  But I can't figure out how to take the calibration data and assign programmatically to each channel its own custom scale.

  Here's some code.  This first Routine detects the Triax task stored in the project and ensures that the correct USB-6009 case is connected.  In its project work, I appointed the three channels physical ai0 ai1 and ai2 to X, Y, and Z, and together the voltage between 0 and 5 v - this code basically resets the scale for these three channels.  It seems to work correctly.

  

  The reason I do it is that I want to record these three channels using the standard Volt scale, I will use these tensions to run the Calibration procedure I developed to get through three and get the necessary parameters to the custom scale.

  Here's what I tried to create a customized channel X, Y and Z (the scales are named X_Scale, Y_Scale and Z_Scale).  I tried a number of things, it's just one of them, but I did have a success to get anything to work (to talk to avoid the errors of DAQmx).  Either way, if I get the scale factors 'manually', my accelerometer readings are, indeed, optimized between-1 and + 1 g.

  Some of this code may seem too complicated - do - me confidence, I tried to make it more simple, but there are all kinds of 'hidden hunting for witches' in some of these functions that "made me do it" this way.  But, of course, this does not work.

  Ideas and suggestions are welcome!  I will continue to work on it, of course (but, thankfully, I did not the device at home with me, if I get a little break...).

  "Puzzled" Bob Schor

  
  

• determination of the sampling rate and the frequency waveform data record

  Hello

  I write a simple program that collect data from a triaxial accelerometer input, convert it to a frequency spectrum, and then save the time domain and the frequency of the waveforms in an external file separated.  I don't understand how to set the sampling frequency, however.  On the DAQ Assistant, I updated the acquisition mode "Samples continues" and read samples is 2 k, which corresponds to the total number of data points that are collected.  How can I program sampling for awhile, it 30 seconds, for example?  Wouldn't be better to set up a trigger, as it will continue to collect data up to what I told it to stop?

  I also want to save waveform data in a separate file that can be easily seen by other computers that have not installed Labview.  I have currently the program put in place to convert a text string of the waveform of the time domain and then save it in a text file or a spreadsheet.  It works fine, but I would also like to record the frequency wave, which is a different type of data.  How can I do this or is there a better way?

  My program is attached.  Thanks for your help!

  Here's how you can use the shift register to build the table, and also where you can choose to play exactly 100 samples per while the loop iteration.

  

  Brian

• Referencing non-event source enum

  Hi all

  I want to take three dynamic stream of a triaxial accelerometer and reorganize who is x, y and z, based on overall accelerometer orientation so that the global axes remain the same, i.e. If I reposition the accelerometer so that its tip axis now in the global sense, 'z', ' y', I want that data to be bound to the z wire so that saved data is consistent. In the past, I just changed the name of the file, but this solution is quite clumsy, and I already know how this is not interesting.

  I have yet not done anything achievable, because I'm just confused so no example VI unfortunately. All I have is three emuns labeled x, y and z, each with x, y and z components of choice, as below:

  

  For example, I put the x enum item in there. I want the item there should be disabled for enums y and z, and I want the input data x to link to the output data stream there. If I choose a second and then the third element enum is forced. It sounds simple and I could do in order using the nested structures case but it's not very flexible at all. I had a go with a structure of the event, but I can't find a way of disabling items in two enumerations that are not the source of the event, and then I have to return the actual stream. I thought the elements should be disabled in a table and using a FGV within a structure of the case, but I found myself with some problems regardless of how I approached it.

  I'm not necessarily looking for complete solutions, but it would be good to have some fresh insight and ideas so that I can have a go myself.

  Thanks in advance!

  IDT

  Hi idt.

  I think you have misunderstood the table that you are inputing in the disabled items property. The disabled items property disables the values that are the indices of the table you fed into it. As you have supplied an initial array of 3 you select the 0th element, which is in this case, 0 x three times and turn it off. If you remove the constant matrix on the left of your loop, this will be illustrated by the fact x should no longer be disabled when executing your VI

  Kind regards

• Portege M405: Programming for Toshiba accelerometer API software

  I am interested in the programming of an application that would be able to use my computer's built-in accelerometer

  Computer: Toshiba Portege M405 Tablet (w / HDD protection against shock)
  Language: C# or Visual Basic

  I'd be grateful if someone would be able to help me.

  Thank you

  Hey Buddy

  I think that this is not a bad idea, but I doubt that anyone here in the forum would be able to help you...
  Here in the forum, you will find ordinary laptops users who try to solve "common problems that might appear on laptops Toshiba."

  But I doubt that there are people who would be able to help you in this case...
  However, maybe someone knows how to program such request...

• Re: Incorrect accelerometer readings

  I have a strange problem: shortly after the start of my tablet, the accelerometer is weird. Therefore, the acceleration of the screen is always upside down, and it does not meet the rotation of the tablet.

  If I read the readings of accelerometer with a test program, the trend is good, but the zero level is incorrect. 0 g, X denotes + 4 m/s, Y indicates-9 m/s and Z watch-5 m/s. What explains the problem with the rotation of the screen. The only solution seems to be a reset.

  Is that what I can do to solve this problem, or do I need to bring it back? I'm just inside 6 months since I bought it, so I need to know soon...

  PS: This is a Pro to excite 10.1 16 GB, I think AT10LE-A108 is the official type.

  > I feel it was a rogue background process.
  > It is difficult to say which, but I learned that any application can recalibrate (or spoil) the accelerometer.

  Sometimes its very useful restore Android system, but also the tablet to the factory settings. Where the Android system was confused upward through an app or a process, this reset should solve the problem.
  That's why I think you should check it out in case you no it did not in the past.

• Satellite A-P70-11V - HARD disk protection works without accelerometer?

  Hi all

  I'm new here.
  I did another post. In short, I'm expert enough in Toshiba Satellite laptops, but my new, Satellite P70-A-11V, a portable high professional range, had some problems. It came with Windows 8, which I upgraded to 8.1. Unfortunately, the degraded system so bad that all pendrives made plant. I have connected my Toshiba camcorder, and it also crashed the laptop.

  The search indexing was not working outside the C: drive. The pointer of an optical mouse has started to freeze for seconds on the screen.
  This last I believe was due to the low power USB ports.

  So, I really had no choice after 2 restorations system total and installed Windows 7 Enterprise x 64 SP1. Operating system almost seems ok, but I still have problems, and one of them is that but I'm trying to install the accelerometer utilities, there is no driver.

  I tried that Windows 8 x 64, but just, it does not appear on the list of services.

  I found that the utility of the HARD disk protection was also arrested, I searched this forum and someone said that the Intel Rapid Storage technology must be uninstalled. I did and my HDD is running... but I don't know if it's effective!

  I remember with the 8.1 Windows, the utility always shown a message on the upper right: Vibration is detected, the drive is temporarily closed, etc..

  She has been associated with some high tone sound indicating that the drive has been effectively stopped. Now I can shake it off the laptop, but no message appears, there is no sound.

  I checked all the boxes on the interface of protection of HARD drive to indicate if there are vibrations, but so far nothing. The drive protection is in place and running, but in the absence of use of the accelerometer, the protection of disk HARD just don't know when to act.

  Am I wrong? Can Toshiba fix this?

  All responses are greatly appreciated.

  Hello

  Toshiba drivers and tools available to win 8 or 8.1 to win are not entirely comparable with Toshiba available for Win 7 OS software.
  Some drivers and tools that are available to win 8 don t exist for the Win 7 system.

  For example; commercial accelerometer or HDD Protection Utility released in particular to win 8 / Win system 8.1 and are not available for Win 7.

  But for Win 7, you can find the Toshiba VAP (value added package) and this package installs a range of important services that are an essential component of the Windows system and this PPV will perform the other original programming TOSHIBA works correctly.

  Therefore, you must install the VAP as Toshiba's first tool to ensure that other software such as HDD/SSD Alert Utility or PC Health Monitor

• Windows 7 Pro x 64 does not detect HP Mobile Data Protection Sensor (accelerometer)

  Hello.

  I installed win7pro x 64 yesterday and already fallen on a serious problem, which is how I use the laptop a little dangerous for my valuable data.

  When I was working on HP Vista 32 bit (of the partition recovery etc.) brand, it was a device called the HP Mobile Data Protection with HP ProtectSmart software sensor (or protect Smart). In other words, the accelerometer HDD which parks the HARD drive heads when it "feels" it is down or something and the software for it. It has worked flawlessly.

  
  

  Until I decided to install Win7... And then, surprisingly, after failure of driver install and take a look in the Device Manager, I have noticed that there is no such device. I checked three times, looked at property of each device, even reinstalled Vista 32bits back - he has shown again - and installed Win7 - not detected again. There is nothing that has the HPQ004 device ID! I remember people saying that after that fresh Windows installed, there are 6 unknown devices or more. I got only 5. [Device fingerprinting, 3 x MemCard player and IR receiver]. There is no accelerometer... Also, when I try to install the drivers/software, windows appears:

  ProtectSmart Hard Drive Protection: with the text Property.AccelerometerNotPresent

  and then another saying something like features were not installed due to wrong installation or not supported feature.

  So now I'm stuck with a laptop it is dangerous to travel with, because the disk is no longer protected

  I have already installed all the drivers available on the HP page, even downloaded those newer Intel (chipset) etc.

  Is there a solution to this? Has anyone else encountered this problem?

  Windows 7 is officially released and available in RTM version, not beta, so I think that HP should open support in his favor and release new drivers for win7! And above all, to solve this problem...

  If anyone is interested, this problem is solved now.

  Just download the new drivers from http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en & cc = us & prodTypeId = 321957 & prodSeriesId = 3744188 & swItem = ob-76187-1 & mode = 4 & idx = 2, install and make sure you have the latest version of the BIOS. Tested - heads are being finally parked! Yay!

• Portege M700 - Rotation buton and the accelerometer does not

  Running Vista Business 32-bit.

  When I put my M700 in tablet mode and tilt the tablet to 1side and press the button next to the slider he used to rotate the screen in that direction.
  He doesn't do this more. I have
  Note also that all the utilities of the accelerometer, like tilt, shake and advanced security no longer work. detection of movement of hard drive does not work.

  I reinstalled from recovery discs and installed original and new extension of the tablet version and pvat. Nothing seems to help. I also installed Windows 7 ultimate 64-bit, it does not work there either. I've actually noticed that it also does not work on vista because of this does not not under Windows 7.

  I wonder whether or not my accelerometer is broken or not because it allows to work with the original installation of discs or is it a software problem?

  Hey mate,

  > I reinstalled from recovery disks
  To be honest, if you have the same problem with the factory settings, it appears to be a malfunction of the equipment. With the settings everything should work properly without updating a software or driver.
  So I recommend you contact an authorized service provider. Guys can help you because here it s only a user to user forum.

  By the way: is the new version of the BIOS installed?

• Yet WT8 - question of Gyroscope (accelerometer 3 axes) all in game

  Hi all

  Recently I bought unit Toshiba again.

  However, I am not able to solve the problem with the accelerometer (or gyroscope).
  I will use the example of asphalt 8 game despite the fact that I checked several other titles.

  Still has the same problem.
  While gaming, it is only the left... only it self.
  If I'm blocking the past of automatic position of the screen that allows the car to turn right.

  Could you please tell any resolution?

  Thank you very much

  This problem occurs with all tested games?

  Check if its possible to calibrate the accelerometer in the game settings.

  How about you, affecting the system back to factory settings?
  Have you tested it?

• Calculate speed using acceleration < accelerometer iPhone >

  I'm working on an application where I need to find the speed and Distance without using GPS. I did some R & D on the accelerometer and the Framework.but movement could not be any idea my job. Any suggestions are welcome.

  Ask Mr. Newton. You must integrate the accelerometer of entry (in the mathematical sense of the term) to get the speed and integrate to get the distance.

• Are there problems with the accelerometer/compass on the Flipout?

  My flip is great, except that most of the applications that use the accelerometer does not work correctly.

  This includes: drop http://www.android.com/market/#app=com.infraredpixel.drop

  Labyrinth lite http://www.android.com/market/#app=se.illusionlabs.labyrinth.lite, aTilt 3D labyrinth free http://www.android.com/market/#app=com.fridgecat.android.atiltlite, and the reality applications, Wikitude and Layar immersed.

  In all this, left, right, front, rear are twisted.

  On the other hand, the "abduction" game seems to work fine, and it uses tilt left/right to lead your cow...

  I wonder if this a bug in all of these programs, a bug in the Flipout, or just a problem in my phone.

  Else you have noticed this problem on their phone?

  Yes, I have a flipout. I tried Labyrinth lite and it works fine.

  You can try to go in the game settings and calibrate the level. You can also try to do a software reset the phone, but you may have a hardware problem.

  If a reset does not work, then you will need to exchange the phone. MotoBlur will restore much of your data, but you will lose messages SMS and photos - but let's go back to the top of your data on your computer or SD card.

• Satellite P850 - wonder about the accelerometer pilot description

  I was delighted to see an accelerometer for the P850 pilot in the driver downloads.

  I was also happy or sad to find that it was really a hard throttle.
  There must be a correction of the description, or the correct driver should be loaded.

  I assume you mean the [utilities accelerometer | http://www.toshiba.eu/innovation/download_driver_details.jsp?service=EU&selCategory = 2 & selFamily = 2 & selSeries = 152 & selProduct = 7507 selSh ortMod = null & language = 13 & selOS = all & selType 216 = & year = upload & monthupload = & dayupload = & useDate = null & mode = allMachines & search = & action = search & macId = & country = a he's & selectedLanguage = 13 & type = 216 & page = 1 & ID = 88083 & OS ID = 46 & driverLanguage = 42]

  Description says:
  + These utilities are a set of utilities of material working with motion detectors built into your machine. With the accelerometer, your machine will be able to detect the position you hold your computer at any given time. You can set the machine to perform a specific function when the device is tilted quickly left or right, either at the front or back. You can also take control of the cursor in some applications and move by leaning the PC in a certain direction. +

• HP PAVILION NOTEBOOK 17-g000nv: accelerometer for windows 10 pilots

  I have the HP PAVILION NOTEBOOK g000nv 17. I do not see my accelerometer in nowhere Device Manager, and looks to does not work. Please guide me to solve the problem or perhaps install new drivers for windows 10.

  Thank you

  Hello:

  You can find out if 3D driveguard is installed by going to Device Manager, click to expand the category of peripheral system and then look for the HP Mobile Data Protection sensor.

  If you see the device listed, then you should be fine.

  If you want to update the driver, here is the latest...

  This package provides the software HP 3D DriveGuard to the notebook models that are running a supported operating system. HP 3D DriveGuard software protects the drive hard by parking the heads if cell phone accidentally falls, or is suddenly struck by another object.

  FTP://ftp.HP.com/pub/SoftPaq/sp75501-76000/sp75979.exe

• Noise measurement of an accelerometer with card PCI-4461

  Hello world

  I'm trying to measure the noise of an accelerometer, except with a card PCI-4461.

  First of all, I measured manually this noise with the help of a HP35665 signal Analyzer. I get something like this:

  

  And now with LabView and the PCI-4461 map, I get this:

  

  My question is: Whence this part? And how to remove it? (Since there is no with the signal Analyzer)

  

  I'm using LabView 8.5.

  This is how I configured the DAQ acquisition:

  

  and it's my VI:

  

  Thank you in advance for help

  Arthur