measure percentage

[hahaxuan]

I mean the SOC can not be displayed and can not measure the percentage of power left. 

[altenbach]

You need to be more specific.

[hahaxuan]

Good afternoon !

Thank u for all the help about the VI programing.

Now I have done what u said before, but the charge % still can not be displayed on front panel(remaining 0%). It cannot vary as the voltage change. There must be some problems inside. Could you help me  solve this? 

Thank u very much!!!!!

[hahaxuan]

This is what I have done now...The charge % always keep 0%. It can not change.

[GerdW]

Hi xuan,

use a probe to test the X value you're using to interpolate your points. (Using an ndicator might be a good idea too.)

What value do you feed to the Interpolate1DArray function?

[hahaxuan]

The value I feed is the voltage of battery. One voltage level  got a corresponding charge%. But now I can not get the charge%.

[Dennis_Knutson]

Move that indicator to the output of the index array and report back exactly what the indicator shows. I have no idea why you've ignored the advice about dealing with an array but you need to pay more attention to what people have said.

[hahaxuan]

We cannot use array because we need further calculation. The values are not only 11 but more exact. Like 12.23V corresponding 62%...

[GerdW]

Hi xuan,

I really don't know why this will not work for you:

The values are not only 11 but more exact. Like 12.23V corresponding 62%...

In my (simplified) example this also works nicely! You just need to wire things correctly…

We cannot use array because we need further calculation

I don't understand this. You can do calculations on arrays too…

[hahaxuan]

Thank you very much for your help...But I can not build the VI that u gave. Can you send me the VI program for me?

Thanks!