Fiber agitator

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Fiber agitator

Postby Andrew Smith » Fri May 25, 2018 12:44 pm

I have constructed a kitchen table prototype of the fiber agitator described in this paper https://arxiv.org/pdf/1802.01642.pdf.

This link shows it in action while testing. It will have a cover to stop my Burmese cat playing with it!

https://www.dropbox.com/s/o0axnsb9o5gt3 ... e.mp4?dl=0

Regards Andrew
Andrew Smith
 
Posts: 287
Joined: Fri Sep 30, 2011 12:23 pm

Re: Fiber agitator

Postby Olivier GARDE » Sat May 26, 2018 7:14 am

Hi Andrew,

I work on a similar project with a prototype in LEGO like this one you can find in this link page 27 :
http://www.not.iac.es/news/reports/annu ... nRep10.pdf

My prototype (in progress) will have 2 modules:
- One to shake the fiber in the X axis
- One to shake the fiber in the Y axis

Both not having the same speed.
LHIRES III #5, LISA, e-Shel, C14, RC400 Astrosib, AP1600
http://o.garde.free.fr/astro/Spectro1/Bienvenue.html
Olivier GARDE
 
Posts: 845
Joined: Thu Sep 29, 2011 6:35 am
Location: Rhône Alpes FRANCE

Re: Fiber agitator

Postby Andrew Smith » Sat May 26, 2018 9:25 am

Hi Olivier, I looked at this design. Are you to using LEGO or just the principles of the design? I liked the fact they had to return the LEGO!

I will post some results when I get them and I look forward to seeing yours.

Regards Andrew
Andrew Smith
 
Posts: 287
Joined: Fri Sep 30, 2011 12:23 pm

Re: Fiber agitator

Postby Andrew Smith » Sat May 26, 2018 1:04 pm

Here are some results with my Hi Res Spectrograph R ~2300 using tungsten flats. These images have a strong contrast stretch to highlight the difference.

I will be putting the new agitator into production.

New agitator_off.png
No agitation
New agitator_off.png (15.08 KiB) Viewed 370 times


New agitator_on.png
Agitation
New agitator_on.png (15.97 KiB) Viewed 370 times


Regards Andrew
Andrew Smith
 
Posts: 287
Joined: Fri Sep 30, 2011 12:23 pm

Re: Fiber agitator

Postby Olivier GARDE » Sat May 26, 2018 4:13 pm

Andrew Smith wrote:Hi Olivier, I looked at this design. Are you to using LEGO or just the principles of the design? I liked the fact they had to return the LEGO!

I will post some results when I get them and I look forward to seeing yours.

Regards Andrew


Yes with LEGO too, (only for the prototype...)
LHIRES III #5, LISA, e-Shel, C14, RC400 Astrosib, AP1600
http://o.garde.free.fr/astro/Spectro1/Bienvenue.html
Olivier GARDE
 
Posts: 845
Joined: Thu Sep 29, 2011 6:35 am
Location: Rhône Alpes FRANCE


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