Date:

Author: Bernard Cleyet

Subject: Re: Driven Harmonic Motion Analyzer, PASCO, Brushes

Post:


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I discover I didn't attache the link.

http://www.uiitraining.com/b51a/300/3201and36021.htm

bc


On 2009, Mar 19, , at 11:09, Bernard Cleyet wrote:

> Do not use solvents! (I don't know the geometry.)
>
> http://www.morganamt.com/pdf/TB11_DustRemoval.pdf
>
> I used chalk on a motor-generator powering a Beta-ray spectrometer
> (cylindrical type).
>
> Here's a rather detailed servicing of a motor generator. You may
> be having a problem w/ eccentricity. Note the instruction for
> resurfacing. [Go to cleaning slip rings.]
>
> Note: improper pressure, if the brush is worn the pressure may be
> too low. I suspect proper pressure results in self cleaning. Is
> the ambience high humidity?
>
> bc read just enuf to think should send
>
>
>
>
> On 2009, Mar 19, , at 08:10, Bill Norwood wrote:
>
>> Hi Taplers,
>>
>> Back again with the PASCO ME-9210A Driven FHM Analyzer:
>>
>> Due to dimming and eventual non-lighting of the rotating LED,
>> We must frequently clean the sliding contacts,
>> which uses up too much time and disrupts the labs.
>>
>> One contact is carbon-to-steel (brush against rotating shaft)
>> Other contact is carbon-to-brass (brush against rotating annular
>> ring)
>>
cut
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I=A0discover=A0I didn't attache the link.

http://www.u= iitraining.com/b51a/300/3201and36021.htm

bc


On 2009, Mar 19, , at 11:09, = Bernard Cleyet wrote:

Do = not use solvents! =A0(I don't know the = geometry.)

http://www.morg= anamt.com/pdf/TB11_DustRemoval.pdf

I used = chalk on a=A0motor-generator=A0powering a Beta-ray
spectrometer = (cylindrical type).

Here's a rather detailed = servicing of a motor generator. =A0
You may be having a problem w/ = eccentricity. =A0Note the
instruction for resurfacing. [Go to cleaning = slip rings.]

Note: =A0improper pressure, if the = brush is worn the pressure
may be too low. =A0I suspect proper pressure = results in self
cleaning. =A0Is the ambience high = humidity?

bc read just enuf to think should = send




On = 2009, Mar 19, , at 08:10, Bill Norwood wrote:

Hi = Taplers,
=A0PASCO=A0ME-9210A Driven FHM = Analyzer:
Due = to dimming and eventual non-lighting of the rotating =
LED,
We = must frequently clean the sliding = contacts,
One = contact is carbon-to-steel (brush against rotating =
shaft)

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