How to drive two shakers simultaneously?

Hi,
I wish to perform a MIMO modal analysis by using two shakers and two accelerometers and control and monitor them simultaneously.
Which hardwares do you suggest and is it possible by LabVIEW vibration toolkit?
Tanx

You should investigate the 4461 to verify that it meets your performance requirements. The 4461 supports two high-quality analog inputs and two high-quality analog outputs. LabVIEW and the Sound and Vibration Toolkit can be used to configure and control the analog channels in order to perform MIMO testing. The following document on modal parameter extraction should also be helpful as you move forward: http://zone.ni.com/devzone/cda/epd/p/id/6121
Doug
NI Sound and Vibration

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How to plot two points simultaneously on image?

I want to plot two points simultaneously on an image. I tried using IMAQ overlay point and IMAQ Light meter for point. But when I try to plot two points using either of these two VIs, I find not even one point is plotted. How to resolve this?
Solved!
Go to Solution.

intensity a écrit:
I want to plot two points simultaneously on an image. I tried using IMAQ overlay point and IMAQ Light meter for point. But when I try to plot two points using either of these two VIs, I find not even one point is plotted. How to resolve this?If your image is zoomed out, the point size may be to small to allow a proper drawing of the point. Otherwise IMAQ overlay point works flawlessly...
Message Edité par chilly charly le 01-31-2009 11:40 AM
Chilly Charly (aka CC)
E-List Master - Kudos glutton - Press the yellow button on the left...
Attachments:
Example_VI.png ‏223 KB

How to drive Two External Displays w/MacBook Pro

I'd like to drive 2 external 24" displays with my MacBook Pro (MacBookPro5,1 -- mid 2009 I think) and have a couple of questions before I spend the money on the displays:
1) It appears this can be done based on some of the other threads I've read, but I just want to be sure.
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Message was edited by: rnanderson
Message was edited by: rnanderson

The Matrox DualHead2Go DP Edition can drive two 1920 x 1200 displays off the MBP's mini-Displayport:
http://www.matrox.com/graphics/en/products/gxm/dh2go/
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http://eshop.macsales.com/item/Other%20World%20Computing/VIDU2DVIA/

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Hello All,
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How to do this?
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Google on: java producer consumer example
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How to set two Conditions Simultaneously in set where clause

Hi,
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CO Code
if("OrderNoself".equals(event))
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am.invokeMethod("initWorkOrderNumberself",params11);
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Now when i run my form then Work order list only populateon set conditions ofContractor NAme only.
Please suggest....

Hi Tarun,
Thanx for ur reply,
i have used below mwntioned code provided by you but still i m getting error...
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getDprWorkOrderpopVO1().setWhereClause("PROJECT_NAME =:1 AND CONTRACTOR_NAME=:2");
getDprWorkOrderpopVO1().setWhereClauseParams(null);
getDprWorkOrderpopVO1().setWhereClauseParam(1,ProjectName);
getDprWorkOrderpopVO1().setWhereClauseParam(2,ContractorName);
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ERROR:---
oracle.apps.fnd.framework.OAException: oracle.jbo.SQLStmtException: JBO-27122: SQL error during statement preparation. Statement: SELECT * FROM (select * from omaxe_work_order_headers
where work_order_number is not null) QRSLT WHERE (PROJECT_NAME =:1 AND CONTRACTOR_NAME=:2)
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## Detail 0 ##
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Regards
Saurabh

How to VIEW two tracks's materials SIMULTANEOUSLY and SYNCHRONIZED in MONITORS?

How to VIEW two tracks's materials SIMULTANEOUSLY and SYNCHRONIZED in MONITORS?
"Program-monitor" shows the final edited material, and "Source-monitor" shows only one track at a time, and NOT SYNCHRONIZED with the sequence. "MultiCam-monitor" shows the tracks as I need, BUT editing is very stiff: I want to do edits+cross-fades by hand IN THE TIMELEINE rather than by clicking the monitors. (Some of the "MultiCam-monitor's" other problems: 1) the timeline's time-inspector doesn't move while clicking the monitors, 2) vice-versa: monitor-image doesn't roll when the space-key is pressed for playback the timeline, 3) monitor doesn't show the cross-fades.....) I understand the "Reference-monitor" doesn't help either at this.
I would SO much like to SEE all tracks' materials simultaneously in whatever monitor, to edit efficently in the timeline.
Software: Premiere CS3 version 3.2.0
Operating System: Mac OS X (v10.4)

You can only do this in the multicamera monitor. That's what it's there for. Proper procedure is to cut there, then go to the timeline and add transitions.
If you're multicamera monitor playback isn't working correctly (I admit having a hard time understanding your points here), then try solving those.

How to establish two ethernet connections simultaneously?

Hi!
I have a two-ports router. The first port via ordinary RG-45, and the second port via usb interface.
I want to have both of them to be connected simultaneously. I done this at Gentoo, but can't to do at Arch.
So, what I done exactly:
I found and loaded usbnet module: modprobe usbnet. After that I written appropriate values for new interface (eth1) in /etc/conf.d/network
interface=eth0
address=192.168.1.7
netmask=255.255.255.0
broadcast=192.168.1.255
gateway=192.168.1.1
interface=eth1
address=192.168.1.70
netmask=255.255.255.0
broadcast=192.168.1.255
gateway=192.168.1.1
At this point I restarted networking: systemctl stop/start network and checked for new interface:
ip addr | sed '/^[0-9]/!d;s/: <.*$//'
and got output:
1. lo
2. eth0
3. eth1
OK, I decided to test new interface:
ip link set eth0 down
ip link set eth1 up
eth1 started succesfully. But I can't to start eth0 back: 'ip link set eth0 up' does nothing, even I stopping eth1
I tried to reboot and checked eth0 again: eth0 gone. No more eth0...
ip addr | sed '/^[0-9]/!d;s/: <.*$//'
1. lo
3. eth1
Second interface that was eth0 is missing. And I can't get it back.
Where is eth0 and how to connect both interfaces simultaneously?
Thanks in advance for any help.
Last edited by chord (2012-11-14 21:35:07)

fukawi2 wrote:
hunterthomson wrote:No, using a bridge device connecting two Hosts to your Arch router/switch will not cause a loop.
I'm assuming the "two devices" are actually the 1 router (via Cat5 and USB), and that the router is also acting as a bridge between those 2 interfaces.
That's my understanding of the OP's situation anyway.
That will not cause a switching loop. STP is enabled by defualt on a bridge device and will take care of that. The packets will only use one inteface, until one link is down. Then the packets will use the other interface.
EDIT: Hum, really the OP didn't really give us enough info.
The way I read it was that the Arch computer is a Router with 2 interfaces 1 RJ-45 and one USB-to-RJ-45. Then that's it. He didn't say anything more about his network. So, origonaly thought that he must be wanting to connect to other computer to this "Arch Router"
|----------------------|
| Arch |
| ____#-B___ |
|--/--------------\----|
|--#1----------#2---|
| |
| |
|--#--| |--#--|
| H1 | | H2 |
|------| |------|
BUT, This 'could' cause a broadcast storm if the "Switch GW" didn't suport STP.
|----------------------|
| Arch |
| ____#-B___ |
|--/--------------\----|
|--#1----------#2---|
| |
| |
|--#---#---#--#---|
| Switch GW |
|----------------------|
Last edited by hunterthomson (2012-11-19 08:39:22)

How to grab two IEEE 1394 cameras simultaneously?

Is it possible to grab two or more firewire cameras simultaneously? I have two Sony XCD-X710 cameras and they are both connected in same card in PC. Grabbing works fine with only one camera, but when trying to grab two cameras simultaneously, the computer will crash. Sometimes it crash immediately and sometimes it takes few seconds to crash.
Used frame rate is quite low (about 3.75 fps).

It is definitely possible to acquire from two or more firewire cameras simultaneously, as long as you are not exceeding the bandwidth of the firewire bus (which you should not be at a frame rate of 3.75 fps).
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How to initiate two simultaneous tasks? First waits on second.

I'm looking for guidance. I feel my problem is likely very common. It involves performing two tasks simultaneously.
I have a digitizer (pxi5105) and a waveform generator (pxi5412). I need to generate a pulse and record the response simultaneously. My experiment basically works like this. Imagine that a hammer strikes an object causing it to vibrate. I need to record the resulting vibration beginning with the hammer strike. The generator is the hammer, it generates a pulse. The digitizer records the vibration.
I can imagine a couple of ways to do this. One is to first initialize the digitizer (set it up to measure voltage), then start the generator. The rising generator signal would trigger the digitizer to take a reading. The reading would be returned to the program for processing. I'm thinking the digitizer task would have to run in a separate thread. Upon completion, the digitizer task would invoke a callback function in the main program to process the data. I think there's an example program demonstrating this kind of threaded programming. Is this the best way?
Another approach might be to first turn on the generator and let it run continuously. Then activate the digitizer to trigger off the generator signal as before. This would avoid the complexity of a separate thread. Is this a better approach?
Is there a way to trigger generator and digitizer simulaneously?
If there is documentation/example of this please point me there.
Any recommendations are greatly appreciated.
thanks!

Hi,
I do not think you have to use multiple threads.
Being very expensive devices, the digitizer and the wave gen are capable of handling most of the stuff on their own.
First, you configure the generator to generate and the digitizer to trigger and acquire.
Then, you start the wave generation by software command (digitizer starts acquiring automatically after the waveform crosses the trigger level).
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As you see the flow of operations that your program should implement are sequential, not parallel.
So I do not see a point where you will need multiple threads.
If the generated waveform is very slow and thus the acquisition is supposed to last too long,
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S. Eren BALCI
www.aselsan.com.tr

How do I drive two Dell M110 projectors from my new 15" Macbook pro

I am trying to drive two Dell M110 projectors from my 15" Macbook Pro. When connecting one projector via the HDMI port I am able to utilize two seperate "screens" (laptop screen and projector display), but when I connect any projectors via the Thunderbolt port I am only able to clone the laptop desktop across all the connected displays. I want to be able to display a seperate image on each display. I am running Mountain Lion 10.8.2 and Windows 7 via Parallels 8. Thank you.

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I have the following problem:
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the event with a third channel.
I have installed the Labview-IVI drivers for my OS, but looking at the
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Hi,
Scenario:
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Can anybody suggest how do I achieve this?
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s@k

Dear Radhika,
Thanks..:)
To add to the problem, after the first program is processed and I get the result, I prepare a selection parameter table. This
table I pass to the other two programs as shown:
Program 2:
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Program 3:
SUBMIT <program_name> AND RETURN
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Regards
s@k
Edited by: siemens.a.k on Feb 4, 2010 4:03 PM

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Hi,gurus:
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Hi...
You should be able to send same file to two different receivers. For that you need to create :
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Hey everyone. I've been using iTunes for a long time now, as it is a relatively good program for organizing my huge library> I don't use it to listen to music, but I often need to move files around and onto the appropriate devices for my family. Because of this, I got an external hard drive. From time to time, iTunes will forget that my library comes from my external. usually, this is after booting iTunes without having the external plugged in. This can be a nuisance, because iTunes then decides to fill up my laptop's free space with the large amounts of music I put on at once. It gets especially annoying when I need to consolidate files to ensure they are all on the hard drive because it will consolidate to the computer instead.
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Aarowaim wrote:
how do I set iTunes up so it will always look for my hard drive and use that as the library first?
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Aarowaim wrote:
Then, and only then, if it cannot find my hard drive, it will use my computer's storage.
Again, this is done by default.
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How to drive two shakers simultaneously?

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