Measuring time elapsed for measurements
Hello, I am controlling a signal generator and a VNA using labview. I have set the program to do the measurements for 700ms. but its not correct. how do I measure the real time (in ms) of my...
View Article¿ por que no da error la simulacion de un 555 con la salida sobrecargada ?
Hago un circuito astable y en la salida coloco 2 bombillas de 12v 25w (+- 4 A) y en la simulación funciona. ¿Como es posible, ya que un 555 da una salida max. de 200mA?¿Hay que preparar la simulación...
View ArticleDisplay time in milliseconds
HI When i run my program I need to display time only in milliseconds . How can i achieve that ? Which block should i use for that ?
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PCI-6602, How to convert Pulse Width to RPM and stop updating datalogging at...
Hi all,My objective is to stop updating data logging pulse width measurements at 30 RPM so I can record the time lenght it takes the RPMs to stop from 6000 to 30 RPM. When I turn off the tool. I have...
View ArticlePulse counter for encoder with interface with arduino how to count pulse
i need to take the pulse from encoder attach to arduino and start to count it through positive edge labview doesn't contain a counter up except in real time can i use it ? and if i use it it gives me...
View ArticleDoing something the DAQmx way that doesn't fit? (Triggered counter on PXI 6608)
Hi, I want to create a counter with my PXI6608 that is triggered with an external input, then counts up. I then want to be able to read the count in LabVIEW and hence determine the time since the...
View Articleactivate external clock
Alrighty, I'm a total noob to LabView and the like. I'm at the point where I don't even know if what I know is relevant, so pardon if I give way too much information and probably not enough. I've...
View Articlehi
HIhow to get the start time of a program ( in milli seconds ) .When i start executing the program i should get the start time starting with zero . And I need to merge with the incoming 2 D data Please...
View Articlehow to reroute counter signal
Hi, I am using Labview 2010 and 6212 usb board. I am generating a signal using counter 0 which by default outputs signal to PFI12. However I would like to output the signal to PFI2 or PFI3 for instance...
View ArticleAcquiring velocity using optical (infrared) screens
We are looking to acquire velocity using 2 infrared velocity screens hooked up to a BNC-2090 connector block and a PCIe-6351 DAQ card...I am completely new to Labview so any examples/tutorials/etc that...
View ArticleMerging date and time
I have attached a JPEG file .I am trying to introduce time with an array .Please help me in inserting the time with the 1 D array . thanks and regards
View Articlehow can i get the every rising edge's time value with usb 6212 counter...
i have a usb 6212,and now i can get every pluse 'period ，frequency。 i want to know how to get the every rising edge's time point value by DAQmx Counter.thx
View Articlemeasuring distance between 2 pulses (PCI-6221)
Hi, I have a digital signal that sends a pair of pulses (100ns width each) roughly every 100ms and I would like to measure the time between the two pulses of one pair (with a resolution of 100ns). At...
View ArticleMeasure frequency lower than sampling rate - how?
Hi! My situation is quite simple. I'm using an X-series card (USB-6341) and I want to sample analog, digital and frequency at a sampling rate of 1000Hz. I want to use the analog sampling clock so that...
View ArticleNI 9423 Simultaneously get speed, direction and total count of 4 quadrature...
Hi, I am using the cDAQ-9178 chassis and the 9423 card connected to 4 quadrature encoders. I am programming in C# using the National instruments DAQmx DLL. I have a few questions: 1. Can I change the...
View ArticleTTL measurement NI 9403
Is it possible to measure RPM speed using a laser sensor (output TTL 5V) using a NI 9403? I am using cDAQ 9172 and the NI 9403 is in slot 5 of the chassis but I can not use counters option in DAQ Max....
View Article6024E counter lock up
Hi, I am working on an application using the PCI 6024E card where the card keeps locking up and will not read data from one of the counters (Dev1/ctr0) until the DAQ card is reset, it does however keep...
View ArticleTiming Card with BNC output ??
Hello all, I just have a short question: At the moment I am using the NI PCI-6503 5V TTL/CMOS card to send a TTL pulse through to a Sirah Dye Laser. However, the input of the laser is via a BNC cable....
View ArticleHow do I set the amplitude of complete pwm example?
I have successfully downloaded and executed the sample program shown here: http://www.ni.com/white-paper/2991/en and see the pulse train generate in my oscilloscope. When measuring the value of a...
View Articlecom port issue on mac os 10 x
hi there, I amm trying to connect a bicycle computer (ibike) onto an imac run ning mac os 10 x. I am getting an error message "ibike needs to use a com port in the range of 1-64". I have the latest...
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