[chbot] Filter

[Richard Jones]

Hi Wallace,

Maybe a little more context is required to understand the measurements
being taken and the problem that you have with the results.

Is this static measurement data that you wish to filter, or real time
samples with frequency domain filter, or maybe you wish to do a curve fit?

Richard Jones

On Thu, Oct 18, 2018 at 10:20 AM Mark Atherton <markaren1 at xtra.co.nz> wrote:

> Take 32 readings, add them together, divide result by 32 (or however
> long you can tolerate waiting).
>
> Need to be very careful about overflow. What is your basic data-type ?
>
> Can't think of a simpler filter than averaging...
>
> -Mark
>
>
> On 18/10/2018 9:03 AM, Marshland Engineering wrote:
> > I need to do some software filtering. I'm reading a camshaft with a 0.001
> > linear scale and there is quite a bit of noise in the data. Looking on
> the web
> > has left me non the wiser. Rectangular or Triangle filters are an option
> but
> > these will loose some data integrity. The profile is a very gentle curve
> with
> > the data around the ctr line.
> >
> > I hoping for something simple !!!!
> >
> > Thanks Wallace.
> >
> >
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