How to smoothing graph

[Jes'ter]

haha 

As you said Henrik_Volkers may be the budget is the solution hahaha.

[Henrik_Volkers]

Manager: How good is our new solder machine? Do you have a temperature record?

(We haven't ordered that option.... mmh go make it)

Eng. : Here ....

Manager: Your graph doesn't follow my powerpoint requirements and is not accurate enought.

Eng. more hours and budget later: Here ...

Auditor: Oh... You need defined boundaries, a MUB, documentation .... documentation ...  traceability ....

REQUIEREMENTS ARE AN REQUIERMENT!!

😄 😄

[Jes'ter]

Thank you cbutcher.

i decided to choose reading the temp within +-5 deg C.

(if it didn't work so well, i'll try another)

So, can you please advise me to do this method step by step.

(as i said i'm new for LabVIEW)

Thank you very much.

[cbutcher]

Then my suggestion is to follow the advice of Henrik - take a bunch of measurements, average the values, and don't claim that they're very reliable.

You'll end up with a lower measurement rate (say perhaps a few Hz) and a whole load of bad samples that you just hope are oscillating around the true(ish) value.

Given appropriate number of samples per measurement point, you can probably get them to agree with adjacent measurements to within +-5 deg C.

[Jes'ter]

thank to both of you cbuther and Henrik

and last question i want to ask, can i use low-pass filter to filter noise

from my thermocouple by this method will graph smooth ?

( i mean will the temp steady?)

[Henrik_Volkers]

If you use the mean of 1s data, it's a low pass filter with decimation (reducing the number of samples) 😉

You will (migth) have line noise in your TC measurement, so it's a good idea to sample with a higher samplerate and take the mean of n+1 line periodes.