[chbot] Filter

Trevor Wignall zl3adz at gmail.com
Thu Oct 18 00:13:11 BST 2018

It might also help to know the nature of the noise that is affecting the
data. Is this quantisation noise, noise from other equipment, thermal
noise, ESD?

On Thu, Oct 18, 2018 at 11:51 AM Eliot Blennerhassett <ewblen at gmail.com>

> On 18/10/18 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 none the wiser. Rectangular or Triangle filters are an
> option but
> > these will lose some data integrity. The profile is a very gentle curve
> with
> > the data around the centre line.
> As others said, more context would help.  Can you give us the raw data?
> Are you trying to measure the true profile of the cam? (by measuring its
> radius vs 360 degrees of rotation).
> Can you average data gathered from multiple rotations?
> --
> Eliot
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