Measuring frequency with CompactRio

[GerdW · Accepted solution]

Hi iam,

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However I failed to measure the frequency with Tone Measurements function or Extract Single Tone.VI. They only gave me 0, what did I do wrong?

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Well, you create a waveform with just one single sample in it. How should ToneMeasurement be able to get some frequencies from just one sample?

[iamnewhere]

Thank you for poionting out the mistake. I ended up making a rising edge  counter and calculated the frequency that way. Thank you for the help throughout the days. I really appreciate it.

[docOMAR]

Hello I hope you are doing fine and safe.

i have the same problem. i use NI9205 for measurement velocity, temprature, humidity and CO2.

I want to know how I can display on labview (Humidity Temperature CO2..) while I used a NI9205 acquisition card.

is that I have to make a formula to convert the signal or is there a method of transforming the signal volt into (Humidity Temperature CO2)?

help please !

[GerdW]

Hi docOMAR,

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@docOMAR wrote:

is that I have to make a formula to convert the signal or is there a method of transforming the signal volt into (Humidity Temperature CO2)?

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Read the datasheets of your sensors to learn about the formulas you need to convert voltage into humidity, temp or CO2 content!