Height Pulse measurement

[hanh]

How can I measure pulse height by my DAQ card ?I am a LabVIEW user (6.0)

[Spencer S.]

Hanh,

To measure the height of a pulse with your DAQ device, you will need to acquire the pulse signal with an analog input channel and analyze the waveform in software. LabVIEW includes a VI that makes this analysis simple. Amplitude and Level.vi outputs a waveform's amplitude, high state level, and low state level. This VI is available from the following location:

Functions >> Waveform >> Waveform Measurements

I have also created a quick example that acquires a signal and determines its amplitude and high state level. I have attached it below.

Good luck with your application.

Spencer S.

[hanh]

I have tried your example, but i can not find the "amplitude and level.vi" in my labview! ? ( I use LabVIEW6.i and 5.1)
What is problem ?

[Nirmal_Sharma]

Hi hanh,

Goto LV function pallete -> Analyze -> waveform Measurements - here u can find 2 vi which can give the amplitde.
- Extract Single Tone Information Vi
- Amplitude & Levels Vi

Best Regards,
Nirmal Sharma

[hanh]

Thank you, but I did not find "amplitude&levelVi". is this due to my uncompleted labview version ?
(I found Extract single tone...vi).

[Spencer S.]

Actually, Amplitude and Levels.vi was not introduced until LabVIEW 6.1. Thus, you will not have access to this VI in LabVIEW 6.0. I apologize for the confusion. However, you should be able to accomplish your task with Extract Single Tone Information.vi.

Spencer S.