Noise on PCMCIA DAQ 6024

Why does PCMCIA 6024 DAQ card generate noise over signal where PCI 6034E does not ? Where is the problem ? Using the same LV version 6.1 on both machine (Pc) and same OS (Win2000)

Hello,
Some portable devices do not achieve the same accuracy levels of PCI DAQ boards. For instance, noise that did not occur on the PCI version sometimes appears in measurements taken with a portable DAQ device. This noise results primarily from the size difference.
In the links below you can found some link that explain how to resolve this problem :
http://digital.ni.com/public.nsf/websearch/3C6360322410D7A786256E1D0070C375?OpenDocument
http://digital.ni.com/public.nsf/websearch/4B929520C216A84986256BEA00452C77?OpenDocument
Hope this helps.
Sanaa T
National Instruments

Similar Messages

Daq 6024 + labview 7 + mac os x

hello out there,
is it possible to use ni daq 6024 pcmcia with labview 7 on a powerbook with os 10.3.4 ? is the configuration like the same as on windows.. (eg messurment and automation tool) how can i change the card settings to 16 channels single ended ??
thanks and greetings from germany

hello alecos,
generally, the answer is yes. refer to the following link for further info:
http://digital.ni.com/manuals.nsf/webAdvsearch/906E67190557B92286256E51007F923E?OpenDocument&vid=niwc&node=132100_US
a short troubleshooting list can be found here:
http://digital.ni.com/public.nsf/websearch/59CD25C249D64CFA86256AA3006930F5?OpenDocument
manual for NI-DAQ for Mac OS:
http://digital.ni.com/manuals.nsf/webAdvsearch/6853558BCBAF43AD862568D300645961?OpenDocument&vid=niwc&node=132100_US
-Norbert B.
NI Germany
CEO: What exactly is stopping us from doing this?
Expert: Geometry
Marketing Manager: Just ignore it.

I am searching a VI for AC acquisition with a PCMCIA DAQ card 6024E

Hi,
I am searching a VI for Alternativ Current acquisition with a PCMCIA DAQ card 6024E.
I have tried several availble examples but they are unfortunately not compatible with this card.
I am a beginner with Labview, as a consequence any help and support on that topic would be really appreciated.
Thanks,
Alban Cotard.

I think you wann measure Alternating Current?!?
what want you know, the period, amplitude, rms.....?
e.g. use the "cycle average and rms.vi" or other VI in this palett
regards timo

What do I buy to connect a PCMCIA DAQ into a Desktop.

Is there a solution that I can purchase which will allow me to use my NI Multifunction PCMCIA DAQ card in my Desktop PC?

Hello;
There are some PCMCIA/PCI adaptors that can be used in general for PCMCIA devices to be used on Desktop machines. However, is not guaranteed the NI-DAQ driver will communicate with the driver of the adaptor.
The best way for you is to purchase a PCI DAQ board.
Regards
Filipe A.
Applications Engineer
National Instruments

Large analogue input noise with laptop and 6024

Acquiring an analogue signal leads to large noise of +-100mV !
I'm using a NI 6024 card with shielded cable and a selfbuild connector box on a Dell D800 Laptop. The analogue inputs are used as differential inputs and connected to external amplifiers. In the box additionally the frequency output (GPCTR0_OUT and DGND) is connected to a small electronic circuit with an octal buffer (74HCT250) and 5V voltage regulator (An external 12V power supply is additionally used).
The noise is not reduced by connecting V_IN- directly or via 10k resistor to AIGIND.
There is no noise, if a battery is connected to the analogue input.
May I e.g. connect the DGND to the AIGND ?
I would be happy to receive any suggestions for solving
this problem.
Thanks a lot
Ralf

Hi Ralf,
When using laptops and external circuitry there's always a whole lot of noise generated by the conflicting coupling of the laptop's power source and your external source. You might find that using the external power supply but powering the laptop from the battery also helps. I'd suggest that first you make sure that your laptop and circuitry are powered from the same electric line, then you can connect your external digital ground to the AIGround via a 10K resistor, to protect the DAQ board. This will help, but I believe the best way will be to use a low pass filter between your amplifier and your Analog Input, that way you'll be able to get rid of most of the high frequency noise.
In general, if you have an external digital circuit powered by an e
xternal power source and you're using a laptop I recommend you use opto-couplers, powered by the 5V of the DAQ card to get rid of any possibility of noise.

Error code 10007 with biobench 1.2 and PCMCIA DAQ-1200

Trying to use Biobench 1.2 in conjunction with a PCMCIA 1200 DAQ card. Like previously reported this becomes a problem when trying to record from more than one analogue input. However, I don't understand the previusly documented solution: how in biobench do you ammend the scan order of the channels to overcome this problem.

Greetings,
To amend the scan order, you should do the following:
Navigate to Configure >> Settings. On the Timing tab, select channels 6, 4, 2, and 0 from the Scan List. Then, on the main screen, modify the displayed graphs so that channel 6 is the topmost, followed by channel 4, channel 2, and finally channel 0 on the bottom. You can change which channel is associated with a particular graph by pressing the down-arrow in the upper left-hand corner. The scan order should now be appropriate for your PCMCIA-1200.
Good luck with your application.
Spencer S.

6062E PCMCIA DAQ card overheats

Hi
I just got a 6062E card, and I'm having trouble with the analog outputs flaking out after the application runs for a while. The problem appears to be related to the temperature, although the 2 AO channels together are only driving a bit under 2 mA RMS, less than the 5 mA spec in the manual. Are there any steps I can take to keep the card running cooler, aside, obviously, from lowering the analog output voltages?
In the congfiguration I'm using, I'm running 2 AO channels, one of the counters, 2 AI channels, and the analog trigger is enabled with its output being routed to the counter source (with the counter gate coming from one of the AOs).
Thanks,
Solved!
Go to Solution.

Thanks.
Well, I've tested it in a 2nd notebook, and it usually takes longer (several hours typically) but it does eventually give the same behavior, the exact time required apparently depending on environmental conditions. In both cases the notebooks were operating in an air conditioned room in the mid 70s F or less. It also overheats when I'm just running the Test Panel doing analog input or letting the notebook sit idle.
Given that it overheats in two very different notebooks, a new Compaq Evo N800c (P4) and a fairly old IBM ThinkPad i series 1400 (Celeron), with very different PCMCIA slot configurations in a variety of conditions, one can only conclude that either this particular card is defective or the design is thermally
marginal for its intended operating environment.
Now, I don't doubt that the card works fine if you keep it at the specified maximum temperature, which was apparently changed in a revision of the manual from 50 C to 40 C. However, everything I've been able to find about notebook thermal engineering suggests that they normally run with an internal temperature in the mid 40s C. If you think that this is just a bad unit, I'd be happy to try exchanging it for one that works better, but... I think you can see where I'm having doubts about this.
Regards,
Ben Buckner

AI using two PCMCIA DAQ Cards

Can anyone tell me the easiest way to do analog input data acquisition
(in LabVIEW) using two PCMCIA (DAQCard-AI-16E-4) cards? There is no
RTSI bus connection between the cards... as would typically be used to
synchronize the scan/trigger.

[posted and mailed]
[email protected] (Joshua Marshall) wrote in
<[email protected]>:
>Can anyone tell me the easiest way to do analog input data acquisition
>(in LabVIEW) using two PCMCIA (DAQCard-AI-16E-4) cards? There is no
>RTSI bus connection between the cards... as would typically be used to
>synchronize the scan/trigger.
>
I'm not sure about these particular cards and whether it applies to them
(but I think it does on any E-series card at least), but an alternative
would be to use a trigger signal in one channel on each card and use this
trigger channel to start your acquisition. Have a look at the AI Read VI;
one of the inputs is CONDITIONAL RETRIEVAL. This allows the acquisition to
commence when the signal is triggered through one of yo
ur channels. Set up
two parallel processes (one for each card) and have two conditional
acquisitions. Combine the data in some fashion (depending on what you're
after).
This would be the simplest, but there are probably other more efficient
ways of doing it.
cheers, Alex.
Alexander C. Le Dain, PhD
ICON Technologies Pty Ltd
http://www.icon-tech.com.au

I use labview 8.0 and i can not run daqmx driver for pcmcia 6062e daq card

i use labview 8.0 on window xp .when i installed a PCMCIA daq card 6062E, i could not run daqmx driver.It is fine to see that the traditional version is working well.When i install daq card sometimes it is working well with traditional driver but mostly i see error on reading an analog input from PCMCIA daq device.An error called 'base adress' occures .I use last version of driver that is daqmx 8.0.1. and i have installed this correctly but again i could not see any signal on the test panel for daq-mx driver.I don't know what is the problem.Also when i install PCMCIA daq card Please reply this message.I need your helps.
Thanks

Hello,
Thanks for your reply.I will try to answer your questions.
I have checked the Device Mananger and I have seen that the device is detected by Windows XP. For another question the card shows up under both NI-DAQmx Devices and Traditional NI-DAQ (Legacy) Devices consistently in the Measurement & Automation Explorer.I use a way that I reset the driver for traditional NI-DAQ in MAX,and then i reset the device for NI-DAQmx driver in MAX and again i tried to run the test panel of DAQmx driver but again i saw a wrong signal or noise signal on the test panel i could not see the sinusoidal signal that i connected. i do get the test panels to run with the card using the DAQmx driver, But could not run the DAQ diagnostic utility.The error was as i specified below.
03.05.2006 09:49:35
Results saved to: C:\Documents and Settings\serkan\Desktop\Diagnostic Results.txt
Selected Device: Dev1
Device Type: DAQCard-6062E
Serial Number: 107509E
Device Support: (PASS)
NI-DAQmx Version: 8.0 (PASS)
Device Reset: (FAIL)
Error -50002 occurred at an unidentified location
Possible reason(s):
The specified device is not a valid device. The operation could not be completed as specified.
------ DIAGNOSTIC UTILITY ABORTED -----
And for your last question i can say that i have used the DAQ card on other laptops.But the results were the same.İ hope to see your reply
Thanks,
Serkan Buhan
Electrical-Elecronics Engineer
Researcher
TUBITAK-BILTEN

Unable to count fast pulses with DAQ(pcmcia card)AI-16E-4, using the example vi

I am using the AI-16E-4 PCMCIA Daq card to count pulses from a device that has an open collector pulse output. I am current just trying it out to see if I can get it to count the pulses correctly before I go ahead and further develop the program. I am using the Example program for counting pulses with this device.
What I am finding is that when I increase the pulse rate above about 20,000hz it slows down and then stops counting pulses. The documentation for this device states the max input frequency is 20mhz, therefor it should be able to count the pulses I am planing on providing. The fastest rate the device I am connected is around 2.mhz. Can someone tell me how to get the AI-16E-4
to count these open collector pulses.
Attachments:
regulation_tester.vi ‏89 KB

Hello;
You need, first of all, to provide a pull up resistor for the open collector device, in a way that its high state fits within the TTL levels.
Once that is done, you just connect its output to the counter source input. The device should be able to go up to 20MHz, with no problem.
Regards
Filipe A.
Applications Engineer
National Instruments

DAQ background noise

Hi folks,
I'm using Daq USB-6211. Platform is MAC OS X. Labview version: 8.5.
The Daq sample at 250 HZ and each time take 250,000 data. So basically it sample 1 sec and continue sampling without stop. It's in differential mode.
The measurement starts with measuring the background noise of an ordinary coil. The coil is made up of thin copper wire with resistance 40 khm and inductance 0.1 Henry. There is a SR-560 preamplifier in between the Daq and the coil. Gain is 1000. it's in low noise mode and no filter is applied.
Now the energy spectrum shows there are 10K, 20K, 30K, 40K and 50K noise in it. They are very regular and I suspect they are produced by the Daq itself. It seems like its intrinsic clock? I really need to get rid of these noise to proceed.
Thanks,
John

John,
First, some questions about things in your original post which did not make sense to me.
1. You said you are sampling at 250 Hz and reading 250000 samples in one second. So I presume you meant that you are sampling at 250 kHz.
2. Is the resistance of your coil 40 ohms or 40000 ohms?
How do you prevent any magnetic coupling to the coil during your background measurements?
Can you post the spectral data or at least an image? What does the signal look like in the time domain?
It should be easy to isolate any internal noise from the DAQ. Terminate the inputs with a metal film resistor with a value equal to the coil resistance. Shield the resistors if the environment is noisy. Measure the spectrum.
Lynn

PCMCIA-CAN/2 Series 2 works on windowa Vista?

Hey ,
We are using the PCMCIA-CAN/2 Series 2 CAN Card for our application.We are moving to Windows Vista very soon.I was not sure if I can use the same CAN card for the vista operating system?
I've seen some post about PCMCIA DAQ not working on Vista? is it the same with CAN card too? Details of the CAN card below.
http://sine.ni.com/nips/cds/view/p/lang/en/nid/1332
Thanks
-Vamshi Ainapur
Solved!
Go to Solution.

Hello Vamshi,
The NI-CAN 2.6 driver supports the PCMCI-CAN Series 2 under Vista x86. Please note that the PCMCIA-CAN and PCMCIA-CAN/2 interfaces are not supported on the 64-bit version of Windows Vista. This information is available in the readme file, located on the driver's download page.
Have a great week.
O. Proulx
National Instruments
www.ni.com/support

What is the multiplexing sequency for the DAQ cards?

I have a PCMCIA DAQ card (AI-16E-4). How does the multiplexing work on the that card?
In my setup I connect the same signal to channel 0 and channel 3 (differential termination). I notice that the acquisition of channel 0 is delayed by what appears to be half of the time increment between samples.
Does that sound right? I would have expected channel 3 to be delayed. Is there a way to know how the delay works?
Thanks,
Jerome.

Hi Jerome,
The multiplexer(mux) on your card will sample all of the channels in order. That is, channel 0 will be sampled first, and the channel 1, and so on. What happens is the mux will then take all of those samples and send that information to the ADC. With Traditional DAQ, the convert of all channels will be done as quickly as possible between sample clocks.
I hope this helps. Have a Great Day!
George

From a beginner of DAQ.

Dear,
I obtained PCMCIA DAQ card recently.
I would like to use it under Labview control.
Please give me your comments some preparation document for labview programming and example code?
Thank you in advance.

Hello Labmaster:
Using DAQ in LabVIEW is actually quite simple. First there are some steps that you should take to ensure your instruments work prior to using them in LabVIEW. Second you can use our "Example Finder" to find data acquisition examples for all DAQ functions.
In "Measurement and Automation Explorer"(MAX) you can view and test the various inputs/outputs of your DAQ card. If you are using a PC you can go to Start->Programs->National Instruments->Measurement and Automation Explorer. If you click the tab "Devices and Interfaces" you should see your card under NI-DAQmx Devices. Click on your device and to the upper middle of your screen you will see a "Test Panels" button, click on that. Here you will be able to monitor the various I/O of your card, the screen is easy to navigate and control is reasonably simple.
Next, in LabVIEW there are many examples for data acquisition. First you should open a new project in LabVIEW. Navigate to help on the toolbar and select "Find Examples". Within the "Browse" tab in the middle window you will see various folders that contain specific user examples. Go to Hardware Input and Output->DAQmx... here you will find many examples based on the type of data acquisition you might need.
If you have any further questions you can feel free to ask...
Regards
Matt Sweetland
NI Applications Engineer

Laptop & DAQ card

Is it possible to use a PCI daq card (like the 6035e) on a laptop computer (Dell computer Inspiron 8100) via an adaptor or do I have to buy a PCMCI card?

Hello;
Even though you might find PCI/PCMCIA adaptors to adapt one bus type to the other, that doesn't guarantee the DAQ board will work on that setup.
I'm saying that because the NI-DAQ driver wasn't tested under such circunstance. Depending on how the driver of the adaptor is structured, the NI-DAQ driver for our DAQ devices might have difficulties on recognizing the DAQ device.
I think the safe choice is to purchase a PCMCIA DAQ card.
Hope this helps.
Filipe A.
Applications Engineer
National Instruments

Noise on PCMCIA DAQ 6024

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