Photon counting using R series FPGA. Problem generating TTL signals
Greetings, I'm trying to use NI R series FPGA to read and count the TTL pulses from a discriminator (Hamamatsu C9744 photon counting unit) connected to a PMT (Hamamatsu H7422P-40). The output from PMT...
View Article10MhzRefClock as Trigger
HelloI'm using a NI-USB 6343 device. I was able to generate 2 TTL signal with one is delayed from the other. I'm using 10MHzRefClock as trigger. It seems to work. Is it the right way to do so? (i.e....
View ArticleHow to use the counter present on cDAQ 9174 through the digital output module...
Hello, I have a cDAQ 9174, which I believe has 4 counters on it, I need to generate a pulse train (0-5V) using the cDAQ and digital output module NI 9472. Is this possible? And how do I do it? The...
View ArticleMinimum pulse width detectable counting with USB-6210
Hi,Can anyone tell me which is the minimum width of a pulse at a digital input that the counter of an USB-6210 module can count?The specs sheet only talks about the debouncing filter, which has a...
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Counter timing issues
Hello!I am using an NI USB-6001 to calculate the speed of a moving wire. The wire rotates a wheel with a known diameter and an inductive sensor pulses 4 times each rotation when it detects holes evenly...
View Articlelarge frequency readings using the DAQ Express VI: Counter
I am currently using a 6341 DAQ and trying to read a speed signal from an electric motor (5 vdc square wave) using the DAQ assistant express VI. I can read the correct frequency of the square wave,...
View ArticleHelp to implement simultaneous 3 counters on PCI 6602
Hi,I have a problem and need your advices.Currently, I am using Pci 6602 board with labview and I can use 2 counters simultaneously.However, when I add one more DAQmx task with one more counter, all...
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Buffered pulse train generation with cDAQ-9181 and NI 9474
Hi,I would like ask, is it possible to make a buffered pulse train generation application using cDAQ-9181 and NI 9474 as hardware? I have an application, in which approx. 18 bits are generated, with...
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Generating arbitrary pulses with PXI-6602
Hi everyone! I have a problem generating pulses with the PXI-6602. What I need is a sequence of pulses that appear for example at t0=0, t1=1ms, t2=5ms, t3=100ms and loop after 1000ms. As far as I...
View ArticleNI PXIe-6612 Quadrature Encoder Setup
I plan to use a NI PXIe-6612 and count up to 8 linear quadrature encoder sensors. I've determined that quadratures use the Gate, Source and Aux counter I/O. I would like to know if I can se the Out...
View ArticleHow many quadrature encoders can be read simultaneously with the cDAQ-9188...
We may need to record position periodically of 8 motors (at the same time that we sample corresponding analog inputs). It looks like the 4 built-in counters limits the chassis to 4 encoders. Is this...
View Article6120 double counter generation and routing through backplane
Hello everybody, I would like to use NI6120 (in PXI 1045 chassis) to generate double counters (counter 0 and counter1). I am using .NET platform. For each counter generation, I create a task, then here...
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PWM Acquisition at same rate
Hello All, I am currently trying to read continuously a PWM using the counter input of a NI USB-6361. The PWM has a frequency of 1kHz, therefore I should read a sample every 1ms. Unfortunately, the...
View Article6602 PCI
Hello Everyone, I am no expert in the field of electronics.I have his older model 6602-PCI timer-counter (it was puschased back in 2001) for the fast multi-tau real-time correlator PCS (Photon...
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Two independent but synchronized pulse outputs
Hi everyone, I have a NI cDAQ-9174 with a NI9401 card (4 counters, 8 DIOs). I want to do the following: I want to have two pulse outputs on different terminals, both completely adjustable (i want to...
View Articlehow to connect four counters via SC-2345 terminal block
GivenUSB-6361 mass-termination DAQ (spec sheet)SC-2345 carrier (manual)2 counter inputs: 2 X4 rotary encoders2 counter outputs: 2 PWM signals that modulate power from benchtop power supply to...
View ArticleSemi-Period Measurement with 3 synchronously starting Counters
Hello Everybody, I am a very Beginner to the NI DAQ Cards.I use X Series Cards and want to programm it in C. My Problem: I need to measure the Changes of three Digital Pulse Signalsover Time , very...
View ArticleHow to synchronize 2 Counter tasks in .Net
I create 2 Counter tasks to measure the same square wave signal in c#. Task 1 will measure the signal's semi-peroid, sample size 20 and start at rising edge. Task 2 will measure the signal's peroid,...
View Articlewhile loop inside control & simulation loop
Hi all, I have a problem when using while loop inside mathscipt used inside control & simulation loop. I want to read a excel cell each 5 seconds and to do it I'm using matlab scrip to know when I...
View ArticlePulse Measurement with PXI-6624
My PXI-6624 works with PXIe-8135. I want to measure a PWM both frequency and duty cycle. I set up the select measurement type is "Pulse Measurement" in System Explorer. Once I deploy it, I got an error...
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