Re: Statistics Express VI - help
That makes alot more sense. but still the reading from the cross correlation is 12 differentce between the 2, so 12ms .. which isant correct because the real delay is 3ms. I dont suppose you know why...
View ArticleRe: Need help with selfmade Hough Transform in formula node
1. You appear to be trying to work in degrees but the formula node uses radians for trigonometric functions. Cos(180) is not equal to cos(pi)! 2. I have not programmed in a text-based language for 30...
View ArticleRe: Calculate Enthalpy values from Temperature using lookup table method
Hi Snehal, even when you read your Z data as 2D array it might just have one column of data (just a "x by 1" 2D array). That's not what the interpolation function expects... When you have (for example)...
View ArticleProgramming the game "Craps" in Labview
I've been given two weeks on this project. Time is running short, and given that I'm not a natural with LabVIEW programming, it still hasn't been enough time for me to make significant progress. The...
View ArticleRe: labview,arduino y bluetoot
ok got a new question, since i am using com 9 in the vi with 9600 baud and the bluetooth stop blinking i guess they are both right, but i read somewhere else that i have to set the baudrate in the LIFA...
View ArticleRe: Beginner questions - sampling and plotting.
Thank you for answering again Lynn. The DAQ assistant set as continuous sampling would not let me reduce the sampling frequency below 1 Hz, so I've changed the DAQ assistant to 1 sample on demand, and...
View ArticleRe: Beginner questions - sampling and plotting.
You are checking the status of the stop button every 30 seconds so of course it will be slow to start. Instead, you can use the elapsed time function with the DAQ code inside a case statement.And yes,...
View ArticleRe: Programming the game "Craps" in Labview
Your code and your task description do not match. Your code has one ' dice' but you say you need 6. The case statement is senseless. You aren't taking any sort of score.
View ArticleRe: labview,arduino y bluetoot
I did a little research under the LIFA firmware and: If you installed the labview interface for arduino you should find it under C:\Program Files\National Instruments\LabVIEW (your version...
View ArticleRe: Programming the game "Craps" in Labview
That "dice" is a random number between zero and one. The mathematical formula it's connected to is exactly what was described in the project handout sheet. The formula is supposedly feeding into the...
View ArticleRe: Programming the game "Craps" in Labview
It is irrelevant whether you think the criticism is demeaning or not. You are the one that said you needed 6 dice and you have only 1. The case statement does not accomplish anything that is in your...
View ArticleRe: Error-200477 Occurred at sinwave.vi:Instance:9:1
What NI DAQ device are you using? Is it listed in MAX (Measurement and Automation Explorer)?
View Articlechart x values normalized
Can I normalize the chart x axis range from 0 to 100 regardless of the number of samples while the program is running ? I think it needs to be done dynamically each time a point of data after 100 is...
View ArticleRe: Strange output of the PID module
Your set point is set to zero, your process variable appears to be 8.181 i.e. too high and error (SP-PV) is negative, so the output of your controller should be negative (-8.181 x Kp). The controller...
View ArticleRe: Stability of the Controller
I've not opened your VI, but do remember that stability margins are (usually) defined on the basis of an open loop transfer function to show how stable or unstable the corresponding closed loop system...
View ArticleRe: binary matrix multiplication
What Ravensfan said- your example is useless because it tells us only what the result is when we're multiplying by (0,0,0)- plus as he said, you're not directly answering the question. If 'module 2'...
View ArticleY-axis Units of Power Spectrum
Hello I am acquiring acceleration from an IEPE accelerometer. Units of the y-axis of the time domain signal are in (g). The time domain signal is then fed into the Spectral Measurements Express VI to...
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Re: Build Lock-in amplifier with PXI-4461 4462
Hi Travis,I also am trying to develop a lock in amplifier but I find that a lot of links refering to this topic, to NI pages hace been removed or no longer availableAre the three vi's (PLL .......
View ArticleRe: Beginner questions - sampling and plotting.
I guess I could just adjust the timeout value of the DAQ assistant in the first VI i posted, and this would allow me to input a lower sampling frequency directly in the DAQ assistant? I don't have...
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