DAQ Speed of Sound Measurement
This question is probably 50% labVIEW and 50% physics related. I’ve been asked to create a labVIEW program to measure speed of sound in different materials using a DAQ operating at ultrasonic...
View Articlecomma delimited number to array
I am trying to split the comma delimited number from read Buffer.Only the first number can be convtered into array.But if I replaced the read buffer with a input spreadsheet string (1.1 , 2.943, 44)...
View Articleclosing main vi while sub vi is running
Hi everyone, I am designing a useful interface for a programmable robotic system. Firstly, i wanted to add a language selection to make easy the interface for the users. This is ok.When the user...
View ArticleVerilog files and LabVIEW
How do I read verilog files into labview? I have GUI that I created which will interface with I2C by using the evaluation board with USB controller and FPGA. Our designer can provide the verilog code...
View Articlefgv with two types of variables
it goes something like thisi want the FGV to have a cluster of two 1D arrays of double (that will be the FGV variable). and the data that i'm "adding" is a double number/constant (whatever), this will...
View ArticleDAQmx Acquire not opening
hey, guys! this is my first post, so please bear with me.i'm having problems with how my DAQ poorly reads data from a thermistor i have. So, i decided to re- create the program i was running. but when...
View ArticleErrors with VI after down converting from 2009 to 8.x and porting from...
Hi All, I'm pretty new to Labview so I've been trying to learn along the way. I've been tasked with porting a .VI that my supervisor developed on Windows to a Linux machine. The ultimate goal would be...
View Article.net start process java
I'm currently working on starting a .jar file in labview. So far I get the application to start, but then it immeditiatly terminations (Have same issue in system.exe) Image of the VI Here is a...
View ArticleIncrease the width of numeric array constant
I am using a type def data structure that is an array of a cluster of numeric controls. When this structure is placed on the block diagram as a constant, the numeric values appear about 1 digit wide....
View ArticleLabview Microcontroller interface
Hi. I have written a simple program for my microcontroller so that when character A is sent, one of the output ports turns high. I am trying to establish a serial communication between microcontroller...
View ArticleResolve issue with updating the tip strip of individual elements in arrays of...
It is currently possible to change the value of a control in an array of clusters using the approach illustrated in the VI available at this link:http://zone.ni.com/devzone/cda/epd/p/id/4951 The...
View ArticleWhy do LabVIEW Example Projects use Global Variables?
I'm puzzled. I've been to enough talks by good LabVIEW programmers (including some who work for NI) and have come away with the impression that Global Variables should, in general, be avoided, with...
View ArticleClik here to view.
How to configure NI 9265 analog output
I am using a compact RIO system whose components are listed below: NI cRIO 9025 (controller)NI 9229 (24-bit analog voltage input module)NI 9265 (16-bit analog current output module) connected to 24 VDC...
View ArticleLabVIEW XML, GXML, or EasyXML?
I'm developing some routines to collect behavioral data. I want to generate a "Header file" that contains two kinds of data -- Experiment-wide (constant) data, such as the name of the subject, the...
View ArticleRun-Time Menu Not Displayed
I am using LabVIEW 2012 DS2. I have created a custom cluster control and associated a run-time menu with the control. This control is used on the front panel to display test status. When I right-click...
View ArticleSin wave generation for R series FPGA
Dear All, I am generating sin Wave with (FPGA Sin Wave Generation Express vi) from Rseries FPGA Target.Frequency range is from 1500Hz to 3000Hz.Frequency and Amplitude parameters are coming from Host...
View ArticleWeb Services Deployment Failed. The NI Application Web Server is still loading.
I've installed LabVIEW 2013 and I'm trying to publish web service. Every time I try, I see this message: "Web Services Deployment Failed. The NI Application Web Server is still loading." I have no idea...
View ArticleConnecting a cRIO over internet
Hi guys, i am working on a data aqq cRIO project which is working with headless datalogger architecture, so far it is deployed at a power plant in their local LAN some miles away from my desktop.We...
View ArticleDerivative problem
Hello, i am getting data from excel file into array, then i am using 'sim arbitrary signal' block to set a dt which i need and to plot signal(it is voltage signal). Then i need to get a 1st derivative...
View ArticleLabview Remote conection and acquire sound and image
Good afternoon for everyone, What I want is the following: 1. º How do I record values from a graph in Excel by pressing a button (eg recording). 2. º How do I show my power picture and sound on my pc...
View Article