Question on NI PCIe-6320 events counting
Hello, all: I am using 6320 for digital events counting. I am using a gated buffer counting method. At the end of each counting period, I read all buffered events out to get their timestamps....
View ArticlecDAQ module for high speed pulse counting
I need to know a USB module which can be used for pulse counting. The pulses are generated from an encoder attached with an stepper motor. It generates 15 pulses per step.Pulse amplitude is 0 to 5V. I...
View ArticleTimer555 to drive a 4W Lamp
Hello, I am trying to light up a 4W lamp using timer 555 with the output connected to a transistor and the collector connected to a transformer. Below is the circuit I am trying to construct. There is...
View ArticleHow to prevent encoder duplicate count with a PCI-6036E card
Hi all, I have a PCI-6036E card which has an encoder signal connected to CTR_0_SRC (PFI8) input. When a try to read encoder counts I get a duplicated value. My card doesn't support the "Duplicate...
View ArticlePhysical Connections to use 4 counters with NI 9411 in cDAQ 9178 chassis
Hello, Currently I have a NI 9411 module in a cDAQ 9178 chassis. I am using 2 of the counters to read frequency measurements. From the NI 9411 pinout diagram (see pdf file attached to this post),...
View ArticleCounting analog pulses from a photon multiplier tube
Hi, I am trying to work out if it is possible to count random negative analog pulses from a photon multiplier tube (PMT) with any of the NI multifunction DAQ or counter/timer boards? Firstly, the...
View Articlehow to find the velocity of an incremental encoder
, i'm using RE22I encoder which can give upto 8192 counts per revolution, i have A,B,Z signals I'm using an fpga as a controller please help me. how to find velocity of the encoder using these signals...
View ArticleComplex signal routing and Sync on a 6602
I have an application for a 6602 where I need to do the following: 1) Route signals as such: GPIO (PFI0) --> RTSI0 CTR1_Out --> RTSI1 CTR2_Out --> RTSI2 CTR3_Out --> RTSI3 CTR4_Out -->...
View ArticleSynchronized AO and Counter task with DAQmx base
Hello, I'd like to get some ideas to implement the synchronized AO and either gate counting or two edge separation. My devices are PCI-6110 and 6602 connected with a RTSI cable. What I want to do...
View ArticleUnpairing Counter Outputs
Hi, I have recently discovered that the counters on a 6602 board are configured in pairs. This is causing problems for my application and I would like to unpair these counters so that variable N...
View ArticleCounters on 6014 become 'linked' using daqmx
The Scenario: I have inherited a test system running LV 8.6 on an XP box with a 6014 daq. The system controls a pump motor, two solenoid valves and other misc paraphernalia. Recent work on revising...
View ArticleGenerating a digital pulse train for muscle stimulator
Hello, I am brand new to LabView, and am trying to decide if it or MatLab (which I am somewhat familiar with) would be best for my application. I need to generate a digital pulse train, to run...
View ArticleInternal clock for the counter
Hello everyone, I am new to NIDAQmx and I am doing angular position measurement. I found provided sample for the counter, it says that I need to use external sample clock. Could someone provide me...
View ArticleExternal counter timebase when trying out NI sample...
I have a newbie question on measurement of edge separation between two rising edges.I am trying to configure an external counter timebase to measure the time between the rising edges of two digital...
View ArticleIncreasing Quadrature Decode Speed (9402 + cDAQ 9174)
I'm writing a VI that monitors two encoders in real time and outputs a given value. These encoders are extremely high precision (80,000 pulses per revolution) and I need a high sample rate (> 10kHz)...
View Articlepci 6132: counter too sensitive?
I'm using the pci 6132 to sample a microphone, with analog triggering on that same input channel.At the same time, parallel, I need to follow an index of a conveyor belt on which the samples move, so I...
View Articlesynchronized retriggerable finite pulse train
Hi there, I'd like to know how many counters are needed in 6602 togenerate two synchronized retriggerable finite pulse trains with different initial delay times. I know that two counters are required...
View ArticlePXI6602: Setting up for simple data capture
I am attempting to setup a simple input capture with a PXI 6602 card in LabWindows. I have 8 signals which I would like to read back at a rate of 100Hz into an array. When I attempt to set the sample...
View ArticleNeed COTS Analog Speed Signal from Encoder
Hello everyone, need some shopping help. I have a customer who wants to get a scaled analog output corresponding to rotational speed from an encoder instead of doing traditional freq measurements. We...
View ArticleCounter Output with NI cDAQ 9188
I am trying to generate pulses with the counters included in the NI 9188 cDAQ chassis.I tried first to do that with NI 9411 module but this task didn't figure out in MAX.I'm trying now to perform that...
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