Hall effect gaussmeter

Hey everybody!
I'm a total LabView newbie, so maybe my question
is probably answered in about a dozen places. All help is appreciated,
and please feel free to point me to other threads/tutorials/examples.
What i'm trying to do is simulate a gaussmeter via labview.I have a hall effect sensor from honeywell,model ss496a1 and a daq(NI USB-6008).How exactly can i build my gaussmeter?I know i have to supply my sensor with a Vc and then measure Voutunder the presence of a magnetic field,but i cant because obviously i'm doing something wrong!Can anyone tell me the exact steps i have to go through?
Many thanks in advance!
Solved!
Go to Solution.

You can use the separate buttons. To be sure that only one button is pressed at a time, you would need to use local variables or property nodes to reset the others.
I customized the radio button to look more like your panel. The radio button has the "one button at a time" functionality built in so you do not need to program it yourself. You could make the frame invisible using the coloring tools.
Lynn
Attachments:
Gaussmeter.3.vi ‏87 KB
Gaussmeter Scale.ctl ‏6 KB

Similar Messages

Biased Hall effect sensor and NI 9201 module. How can I calculate the velocity of an object?

For my final year project at university I have designed and built a drop tower for testing the energy dissipation performance of test pieces.
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1. The NI 9201 has only analog inputs, so you have no other choices with that devices. I did not look it up before my earlier response. Something about the wording of your first post made me think you were measuring the period with a counter.
2. I am not sure which "time period measuring block" you are using. Please post your VI. Before you post it, run it with your Hall sensor so that you have some data recorded. Go to the Edit menu and choose Make Current Values Default." Save the VI. The indicators on your VI will then have your data saved. Post that VI.
3. I am assuming that you will get a signal which looks something like this, although not necessarily starting exactl at zero time or having exactly uniform spacing between the pulses.
Using some simple logic you can determine the time of the transitions between high and low. The differences between the times of successive transitions are your periods. For the image above the falling edges (going from +1 to -1) occur at about 64, 192, 320, and 448. The differences are 128 in each case. For your impact data the differences are likely to not all be the same as yout target decelerates.
After I see you VI, I can give some suggestions about how to proceed to calculate the differences.
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Measuring Digital Output from 3 Hall Effect Sensors

I'm working on a project where I need to map the digital signal coming from 3 hall effect sensors, plugged into the first three channels of a NI 9402 installed in a NI cDAQ-9172 chassis (slot 5). I've done plenty of analog signal measurements before but this is my first time trying to map a digital one. I'm trying to measure the signal at the fastest possible rate (20MHz is what NI 9402 is capable of) and I cannot get the signal to record in any way that I could analyze it. At this point all I'm looking for is a way to record the signal at 20MHz and look at a plot from the three sensors. We're essentially just checking how quickly the signals are being sent to the sensors, so I need to be able to record it and zoom in to see all the 1's and 0's.
I'm also doing this in signal express which may or may not be the whole problem. To me it seems like a simple task, so I assume I'm just missing something obvious. I got 3 digital signals, I want to record them at 20Mhz and then be able to look at the plots afterwards. I don't even want to really analyze them yet, just want to be able to zoom in and see the high's and low's from each sensor. The test I'm recording takes about 7-8 seconds. So far when I try this it looks like it reads the signal in the preview screen but if I try to look at the data afterwards there's nothing there to see. If anyone could point me in a direction to look or has an idea it would be extremely helpful. If more information is needed I can get it for the board. Thanks.
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Hi Tyler,
Are you pressing the Record button to log the data?
Josh B
Applications Engineer
National Instruments

Connecting Hall Effect Sensor as an encoder(feedback) for PCI 7356 Motion Controller

Hi,
We have Labview 2010 and the following hardwares for testing a specific motor (a brushless DC motor):
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NI UMI 7774
AKD Servo Drive P00606
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If the above doesn't work, can I feed only one Hall Effect sensor signal as Encoder Phase A and don't feed anything to Phase B (since I only need control the motor speed in one direction)? Will PCI 7356 or Labview recognize the signal and function accordingly?
If it doesn't work as well, could I use motor's Back EMF as a feedback (this motor produces a decent sinusoidal back EMF)? If I can, how should I configure the hardware and wire the motor to controller accordingly?
If all three above don't work, could you suggest a way to solve this problem?
Thanks so much for your help.
Best,
Chen

Hey Chen,
I have comfirmed that the PCI card will not be able to do feedback with the hall effect sensors. However, you could do that with our NI 951x modules if you run it in FPGA mode. You would need an extra IO module to set up the hall effect sensors with, but you could effectively customize your control and your feedback on the FPGA board immediately.
For your other post, I am not sure you can create a time constraint on the move, I believe that when you define a motion, you would need to define the number of steps or the position and not the time. If you are running the motor at a specific velocity for an amount of time, you would need to set that as the number of revolutions and not time.
I hope this helps.
Regards,
A. Zaatari
National Instruments
Applications Engineer

I have an optical sensor and two hall effect how can I data log?

I have built a test rig which consists of a gyroscope. The gyro is spun up by and electric motor.
I need to measure the speed of rotation. I’m using an optical sensor and two Hall
Effect sensors. I would like to record the
output of these and I would like to build in some redundancy because there will
be another bigger rig that will require more measurement. E.g. vibration.
I’m new to data logging so I’m not sure which hardware I
should be getting.
Thanks

analog inputs are the most universal. with software such as the functions included in the Sound and Vibration Measurement Suite, you can analyze the analog input channel which is connected to your hall effect and optical sensors for frequency and speed. Vibration specific input cards will power accelerometers. with the speed and angular position sensors (hall effect and optical) you can combine this information with your vibration sensors to determine the movement of the device with respect to position and speed. These order analysis functions are part of the Sound and Vibration Measurement Suite.
What is more is that the Suite includes an assistant. The assistant allows for the capture and datalogging of all analog and digital inputs as well as frequency and vibration analysis. This is all configurable and does not require any LabVIEW programming. If you decide you want LabVIEW programming, all the functions are there to support LabVIEW as well.
Here is the link:
http://www.ni.com/soundandvibration/
Preston Johnson
Principal Sales Engineer
Condition Monitoring Systems
Vibration Analyst III - www.vibinst.org, www.mobiusinstitute.com
National Instruments
[email protected]
www.ni.com/mcm
www.ni.com/soundandvibration
www.ni.com/biganalogdata
512-683-5444

How do you use a hall effect sensor to act as a trigger to start the aqusition of data ?

On a 4 stroke engine, a hall effect sensor acts as a trigger to instigate the aquisition of data. Data is recorded from a pressure transducer on both the compression and exhaust cycle.

Paul,
Here is a great resource the help you get started:
http://zone.ni.com/devzone/devzone.nsf/webcategories/327C75ED77E1B8E5862567E80051CF83
Additionally, if you need more help, please supply information such as:
1. What daq board are you using?
2. What kind of signal does your hall effect sensor output?
3. What have you tried?
Best Regards and good luck!

Which card should I buy if I like customizable EAX/DSP listening effects?

Hello all,
I'll first tell you, what audio system I currently use&know, then what I am looking for... and about the mispurchase I have unfortunately already made.
My current main audio system:
SoundBlaster X-Fi Titanium PCI-E on Win7 x64
Samsung HW-C770 (includes 7.1 boxes and an AVR that supports distinct 8-channel connection to the PC)
my EAX/DSP listening profiles created in Creative Console Launcher / Audio Creation Mode (especially making use of custom Reverb and Chorus DSP effects for my/our music&film listening enhancement and pleasure...)
I am looking for:
a small version of the above for another room
must be compatible with my Laptop => USB connection!
(I already have 5.1 boxes with a built-in amplifier for this room)
My mispurchase: I already bought a SoundBlaster X-Fi Surround 5.1 Pro and am very disappointed with it, because:
only the Creative Console Launcher / Entertainment Console is available! (The few predefined EAX environment effects available in the entertainment console are not customizable. Also, they sound pretty bad in my ears compared to my hand-crafted ones...)
the Audio Creation Console is not available (not even the game console), so no customizable effects like Reverb/Chorus/AutoWah at all!
I already found the sad cause for this: this USB card does not have a real X-Fi chip built-in and is pretty much just a software solution (TruStudio...) without user-programmable DSP effects!
Question 1:
Does anyone know of any Creative USB sound card that allows me to create custom EAX/DSP listening profiles (i.e. customizing the Reverb, Chorus, Mixer settings like in audio creation mode...)?
What about the non-pro version of the X-Fi 5.1 Surround, maybe/hopefully, because it is from the pre-TruStudio generation? Can someone with this card please either confirm or deny, before I make my second mispurchase...?
Question 2:
Secondly, I already wonder what Sound Card I should buy, when I'll assemble my new main PC system sometime next year. As explained above, I need 7.1 for my boxes and a programmable DSP for listening pleasure.
I read daniel_k's post about the Recon3D generation cards and was appalled, because he says: "... X-Fi Titanium Features you'll be missing: ... Fully programmable DSP in Audio Creation mode.". So, this is a no-go for me!
What about the new ZxR, maybe? Does its hardware have the X-Fi features back or is it still weaker like the Recon3D?
Thanks for your input!

Many of the good effects and presets from the SoundBlaster Audigy (or even Live!) generation unfortunately did not make it into the X-Fi software generation, but you are lucky: the customizable Jazz Club preset did. To find it, enter audio creation mode and click on the "..."-button of the Reverb effect. Then open the drop-down box and choose "Jazz club". Click on the advanced button to see (and optionally change) all of its effect details (this screenshot is for the Royal Hall effect, but the Jazz Club is at the same place...)
It is not so easy with the X-Fi software to stack two EAX/DSP effects, but this is necessary for great-sounding custom audio profiles. However, it is possible to get back about 80% of the features you once had with the older Audigy software generation via a method that I have detailed in another thread.
So you see: even during the Audigy=>X-Fi transition there has already been some feature loss. Then the effect features were lost altogether on hardware level(!) in the transition from X-Fi=>Recon3D as Daniel K. pointed out. My hope was that Creative brings them back in the Z series, but I fear this company has shredded yet another one of its once great features/assets...
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I also had the idea of looking for a good EAX-based audio player when I changed to the X-Fi generation, but found nothing that came remotely close to the EAX/DSP effects one could/can configure with the SB Audigy or X-Fi (with the help of my workaround). If someone knows of a good EAX software playback solution, please let us know as it might be the only viable way after the X-Fi generation to get these features back!
>>"You may have to do the same as what im going to do for my Z until Creative bring it back with a upgrade for us unhappy customers who thrive on this feature."
I have already waited years for them to bring back these basic Audigy features into the X-Fi software generation. I have long since lost this hope...
Thanks for the link to the X-Fi HD USB card, but it is not useful for my scenario as I have 5.1 speakers. Additionally, it is also based on this TruStudio software, i.e. I assume that it is not software-capable of configuring EAX/DSP listening profiles either. (Can someone confirm?)
>>"but i cant believe the X-Fi version doesn't even have the X-Fi Core it has to have a cut down version at least."
I have this info from a German forum, where they basically say that the 5.1 surround USB card does not have a real X-Fi chip, because it is built like the X-Fi Xtreme Audio (which doesn't have one either). I think this is plausible. In the same thread it is also confimed (by a cited eMail answer from Creative support) that the 5.1 surround only offers the entertainment mode (and thus loses out on all the entertainment/listening effects that you can only configure with "audio creation mode", which should simply be named "expert mode" in my opinion).

How to process the analog output of hall-effect sensors to determine gear RPM.

Hi,
I am using a hall effect sensor to determine the rpm of my shaft. Attached to my shaft is a spur gear, and the sensor detects when the gear teeth passes it.
The attached pdf shows the "idle" state when there is no ferrous target detected. And when a ferrous target (my gear tooth) is detected, a horizontal like is displayed.
I am using the NI-9229 device connecting my hall effect sensor to my PC.
I would like to know how I can process this signal so as to determine the rpm of my shaft in real-time.
Thanks and appreciate the assistance.
Regards,
ST
Attachments:
Hall_effect_sensing.pdf ‏218 KB

Hi, check this one out:
https://decibel.ni.com/content/thread/13337
Br,
/Roger

Weird effect in iTune

Laptop : HP Pavilion dv7-4061nr with Beats Audio
iTune: latest version
For some reason I'm getting this weird sound effect, sorta like a hall effect or something whenever I'm playing music in itune. I just recently bought this laptop so the speakers can't blown. Whenever I play music from Windows Media or youtube the sound quality sounds right or good. So it can't be my speakers. I checked the all settings and EQ and everything's okay. I also like iTune so I don't wanna change to a different media player just to get good sound quality from my laptop and I need it for my iTouch and apps.
Message was edited by: Beeb1134

Right, this will be the last attempt to uninstall iTunes. I wanted to try the last way just in case it worked, it doesn't, so I wont be offering that as a fix anymore.
Instead, try "Revouninstaller". Again, backup first if you're unsure. I've had success with another person on here who was having that same problems as you using that software.
If this works with you too, then this will be a permanent solution to audio quality problems in iTunes.
Good luck.

Daniel_k we need microphone effects in windows 7 please

Hi please we need new driver support EAX Console & Microphone like Concert Hall effects in windows 7
Karaoke_feature1.jpg
my sound Card is creative Audigy SE SB0570
please if u can just add EAX Console & karaoke .
i try driver SB Audigy Series recompiled Install u made Unofficial When I try to install a window installation says that the card is not supported
i just want EAX console & karaoke & mixer to set what u hear .... please please i wait u

Heya
Im not 100% sure how Daniel is supposed to help you with this.
If he is an employee at Creative it mite be out of his control to add EAX Presets back into the creative control panel.
But speaking of which. I recently upgraded from my X-Fi Xtreme Gamer to a Z and I am extremely annoied that Creative decided to remove EAX presets like Jazz Club etc I really like the EQ but it would be better to have both and be able to use both at the same time.
I am still looking for alteritive software that will allow me to pick or set a effect that will give me the live sound for my music like Jazz Club
If these features your asking for where once there, use the last driver you had that had these features available
Uninstall your drivers this way to unsure that they are completely gone.
DOWNLOAD EVERYTHING FROM CREATIVE THAT YOU MAY NEED FOR YOUR SOUND CARD BEFORE UNINSTALLING, E.G WAVESTUDIO ETC
Close any programs that can make sound, even steam. (A message from a friend will play a unwanted sound when uninstalling the driver, part of the driver component will then be in use and may not be able to be removed) This is a Common cause of errors. Thats why it tells you to ensure every program is closed before installing and uninstalling.
Open Control Panel, Then At the top where its says View By click the small arrow pointing down on the right side of "View By" and select small icons, Then select Programs and Features,
Remove Everything that says Creative starting with Creative Control Panel,
Before Restarting your Pc
Open Control Panel, Then Select Device Manager,
In Device Manager click the arrow pointing right on the left of "Sound Video and Game Controllers"
Then right click your Creative Sound card if its still there after uninstalling everything from the creative uninstaller.
If its still there Right click your sound card and select Uninstall. When the window pops up "TICK" the check box saying "Delete All The Software For This Device" "DO NOT PERFORM THIS STEP FIRST!!!!!!!!!!!!!!!!"
Restart the computer and install the Original latest driver that had the funcions you desire.
I haven't proof read this to check for spelling mistakes so sorry if there is any lol

Usb 6501 unresponsive causing BSOD(Blue Screen Error)

There are a lot posts about the same issue but mine is a little peculiar so i decided to post it.
I am using two usb DAQ in the same pc(usb-6501, usb-6001), connected to the usb port on the back. The usb-6501 is used to obtain digital inputs from read switches, Sensors through an ssr. The usb-6001 is used to control 2 double valve solenoid, 1 dc motor, 2 indicator lamps. usb-6001 is also used to read analog values of current(using hall effect sensor) and voltage(using potentiometer).
At first i was facing problems with the usb-6001(the usb-6501 was working fine at this point) resetting during operation accompanied by BSOD. Then i learned it was due to my relay, which requires 30 mA of current to switch so i used the ULN2003a to interface the usb-6001 with the relays and after that the application was running perfectly for 4 days.
Now the usb-6501 is having the same problem and when i perform "Self Test" from NI MAX it shows "Error Code:50405" and i am able to reset the device from NI MAX only sometimes, other times i would have to unplug the USB device then plug it back in. As the application is used for an automated test rig the customer is frustrated by this problem. Once the card becomes unresponsive(or after the card is reset) BSOD occours.
I have checked all the device drivers and OS for any errors but they are fine. i have even tried changing the ram to solve the BSOD with no use.
System Details:
Windows 7 SP1
NI MAX 14.0
power saving is disabled
I have attached the latest mini dump files as they might help in finding out the reason behind this problem(File extensions changed for the purpouse of uploading).
I need to know: Is there any permanent solution for this problem? and what is the reason for this problem.
Attachments:
060115-12480-01.txt ‏315 KB
053015-12324-01.txt ‏315 KB
052615-17440-01.txt ‏315 KB

Additional info : i did an analysis of the dump files and this is the result
0: kd> !analyze -v
* Bugcheck Analysis *
DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1)
An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high. This is usually
caused by drivers using improper addresses.
If kernel debugger is available get stack backtrace.
Arguments:
Arg1: fffff88009fe10b1, memory referenced
Arg2: 0000000000000002, IRQL
Arg3: 0000000000000000, value 0 = read operation, 1 = write operation
Arg4: fffff8800657922e, address which referenced memory
Debugging Details:
READ_ADDRESS: GetPointerFromAddress: unable to read from fffff800032c30e8
fffff88009fe10b1
CURRENT_IRQL: 2
FAULTING_IP:
nifslk+822e
fffff880`0657922e 0fb650ff movzx edx,byte ptr [rax-1]
CUSTOMER_CRASH_COUNT: 1
DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT
BUGCHECK_STR: 0xD1
PROCESS_NAME: System
TRAP_FRAME: fffff80000b9c6b0 -- (.trap 0xfffff80000b9c6b0)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=fffff88009fe10b2 rbx=0000000000000000 rcx=0000000000000000
rdx=fffff80000b9c8e0 rsi=0000000000000000 rdi=0000000000000000
rip=fffff8800657922e rsp=fffff80000b9c840 rbp=fffff88009fe10b1
r8=0000000000000000 r9=0000000000000000 r10=0000000000000000
r11=0000000000000000 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0 nv up ei ng nz na po nc
nifslk+0x822e:
fffff880`0657922e 0fb650ff movzx edx,byte ptr [rax-1] ds:c8e0:fffff880`09fe10b1=??
Resetting default scope
LAST_CONTROL_TRANSFER: from fffff80003091be9 to fffff80003092640
STACK_TEXT:
fffff800`00b9c568 fffff800`03091be9 : 00000000`0000000a fffff880`09fe10b1 00000000`00000002 00000000`00000000 : nt!KeBugCheckEx
fffff800`00b9c570 fffff800`03090860 : fffffa80`06adc250 fffffa80`05c3a060 fffffa80`06adc250 00000000`0000ffff : nt!KiBugCheckDispatch+0x69
fffff800`00b9c6b0 fffff880`0657922e : fffff880`05d47468 fffff880`01d91f90 00000000`00000000 fffff880`09fe0770 : nt!KiPageFault+0x260
fffff800`00b9c840 fffff880`05d47468 : fffff880`01d91f90 00000000`00000000 fffff880`09fe0770 fffff880`09fe17a0 : nifslk+0x822e
fffff800`00b9c848 fffff880`01d91f90 : 00000000`00000000 fffff880`09fe0770 fffff880`09fe17a0 fffff880`09fe10b1 : 0xfffff880`05d47468
fffff800`00b9c850 00000000`00000000 : fffff880`09fe0770 fffff880`09fe17a0 fffff880`09fe10b1 fffff800`00b9c8e0 : nipalk+0x75f90
STACK_COMMAND: kb
FOLLOWUP_IP:
nifslk+822e
fffff880`0657922e 0fb650ff movzx edx,byte ptr [rax-1]
SYMBOL_STACK_INDEX: 3
SYMBOL_NAME: nifslk+822e
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: nifslk
IMAGE_NAME: nifslk.dll
DEBUG_FLR_IMAGE_TIMESTAMP: 51f2daeb
FAILURE_BUCKET_ID: X64_0xD1_nifslk+822e
BUCKET_ID: X64_0xD1_nifslk+822e
Can anyone help me with what this means?

How can I get files off of a MacBook Pro stuck in sleep mode?

A bit of a backstory: Recently my mid-2008 MacBook Pro stopped working. When I try to boot it up, the screen just stays black and the idle light flashes perpetually. I've reset the NVRAM and SMC, even attached it to an external monitor, but nothing works. After a lot of research, I'm pretty sure it's a problem with the hall effect switch.
But I digress; I don't actually need this computer repaired, as I have a second (newer) MacBook Pro I can use. However, there are some files on the old one that I'd like to retrieve. And yes, I've tried booting into target disk mode, which unfortunately doesn't work for reasons listed above.
Essentially what I'm asking is, is there a way I could transfer the files off the old computer to the new one? I know, I should take it to the Apple store, but that's not really an option right now due to personal reasons. I'd just like to know if anyone could suggest another way.
Thanks a lot in advance.

Remove the drive and connect it to your other Mac with a SATA to USB adapter. Copy whatever files you want off the drive.

How to measure current and voltage and rpm with daq device

i am measuring current and voltage and am wondering should i use shunt resistors or current sensors hall effect sensors. i have a pci 6221 and a scc-68 breakout box. what specifications or size should the shunt resistor/current sensor be or should i use another device to measure the currrent and voltage. do i need any other safety device between the resistors, current sensors and the scc-68 breakout box when measuring the current and voltage. will the daq card pci 6221 pick up a signal from the resistor. what terminals should the wires from the resistors and current sensors be connected to in the scc-68. i am using a proximity switch to measure rpm of a motor. should the proximity switch be 2 or 3wire connection. should it have an analog or digital connection and is a power supply required to power the proximity switch and should it have an npn or pnp connection

hello,
i was going to use a 20amp 50mv, or a 20amp 100mv current shunt and connect wires directly into the AI input terminals of the scc-68 from the current shunt would these be suitable. would current shunts such as these be suitable to use http://uk.farnell.com/elc/sh10020/shunt-sh10020-20a-100mv-1-class/dp/1319576 or http://uk.farnell.com/datel/3020-01098-0/shunt-50mv-20a/dp/1339338
is it ok to use either a current shunt or should a hall effect sensor be used such as this http://ie.farnell.com/honeywell-s-c/csla2cd/sensor-hall-effect/dp/1082269 . which of them would be more accurate or are both of them fairly accurate.
when i am measuring voltage can i connect two resistors between the positive and negative of the wires going to the battery and connect two wires from either side of the resistor directly into the analog inputs of the scc-68 and measure the 12-15 volts directly would the pci6221 and scc-68 be able to measure the voltage drop across the resistor.
i wanted to measure rpm also does it matter whether the proximity switch has 2 or 3 wires and should it have an analog or digital/frequency output for cponnecting to the scc-68

SOS help please. Macbook Pro won't turn on. Blinking Light

Hello to everyone this is my first post here and sadly its about a problem with my macbook pro.
The notebook in question is a 17'' Macbook Pro I bought in September 2008.
I simply closed it (without turning it off, just let it go on sleep) and took it with me as usual and when I tried turning it on again, it would not turn on.
I press the power button and I hear the hard drive/superdrive (not sure which of the two) start up and I see the sleep light turn on but after a few seconds its turns off again. If I hold the power button down for a few seconds the sleep light starts blinking and then the notebook turns off once more. In all cases the screen is black.
I tried everything here http://support.apple.com/kb/TS1365 and tried removing and re-installing the RAM and nothing changed.
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see http://support.apple.com/kb/HT2674 and http://support.apple.com/kb/HT2341 for some information about beeps and flashes.
In your case, though, jinnes, the slow blinks suggest that the computer is simply refusing to wake up from sleep.
One possible, though unusual, cause of this can be if you are using the computer with it stacked on top of a macbook. In this case the magnet in the macbook underneath activates the Hall effect switch in the MBP, making the latter think the lid is closed, and preventing wakeup. I've had this happen to me and it is quite unnerving at the time! Simply moving the MBP will fix it. see http://support.apple.com/kb/TS2917
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Cheers
Rod

How to connect Trigger USB-6009 on a flowmeter

I have a flowmeter with the data:
sensing principle: hall-effect, non contacting
output square wave: NPN o.c.
Voltage supply: 4,5-24 VDC
output current: 13mA max
more you can find in the attachement and i use the USB-6009.
How i have to connect the flowmeter to the trigger (PFI0)?
Thanks in advance for any help!
E.Stein
Attachments:
flowmeter.pdf ‏17 KB

Thanks for
Info!
I work with
LabVIEW 8.6 and the configure and programming
of
falling-edge
events is not the problem.
The Problem
is the connection. How to connect the flowmeter to the
USB-6009? Because the 6009 have no gate and out.

Hall effect gaussmeter

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