General > General Technical Chat
how to know the type of linearity ?
(1/1)
harrysmith:
Hello everyone.
is there a method to follow to know that a system is linear or non-linear in electronic field of sensors ?
indeterminatus:
Note that I am a beginner myself.

My understanding is: a system is only linear if all of its components (at least on a very abstract, lumped component level) are linear. It becomes non-linear once you introduce a non-linear component.

Not sure I understand your question. Could you be more precise?
harrysmith:
precisely on a datasheet of a BPW41N photodiode sensor. or I can know its linearity. do we observe these graph characteristic of the datasheet. if so how ?
https://pdf1.alldatasheet.com/datasheet-pdf/view/26252/VISHAY/BPW41N.html
ChristofferB:
I think you're mixing two concepts: a circuit component or circuit can be linear or nonlinear (based on C-V response I believe)
https://en.m.wikipedia.org/wiki/Linear_circuit


The linearity of a sensor is a completely separate physical quality, as a photodiode by the above definition is a nonlinear component, its light intensity to current conversion can be linear within a range.

I guess youd have to compare its output against a calibrated variable intensity light source.
Simon:
https://www.eevblog.com/forum/beginners/linearity-of-an-electronic-system/msg3267336/#msg3267336
Navigation
Message Index
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod