开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育
  1. VacuumX
  2. Topics

vacuum regulator

 

I am? a tech? in instrumentation
maybe? you can help me

i use vacuum? for made some? coupole? Mirror by? put? some vacuum? inther? a schett of milar

but? I know? how to? built a pressure regulator?? like steam?analog regulator
but? fot? vacuum?? ana;laog? regulator


difficle

can? yhou help

jack 47 71?

quebec city
 

Can you give a few more details on your chamber/ what you're trying to achieve? Is this a sputtering process?
 

开云体育

I? am not in the process of mirror alluminium?

?

Only in vacuum? control

?

I use a circle? from a byke wheel

?

Put a alluminium? sheat? over? and? peut a cover in the back

?

Like this? if? <I make? some? vacuum? betting I have? a curve? in the front

?

This ?curve? look like a parabole? od near a? Astro mirror

But ?not exactly? it is a catenaray? curve? like? the calble over a sdpended? brige

?

And ?not usable? for? astronomy? mirror

?

But good? for? my? sound? application

?

My ?problem is? to control? the vacuum

?

I have? some linkage? in the system

And ?have to pur some? vacuum contanly

?

In ?vapor instrumentation we have? pressure? analog regulator

?

Ne electronic? at all

Juste ?mechanical ?we have? differential? ajust? integration of error

?

But ?that? not work? with ?vacuum

?

I seach? for? more? then just a valve

?

Is it possible? ???

?

?

Jack 47 71

?

?

?

Can you give a few more details on your chamber/ what you're trying to achieve? Is this a sputtering process?

 

This sounds like he is trying to use vacuum to pull a parabola on a sheet ..... for that to work you will need a very sensitive feedback loop that is constantly checking on temperature, local atmospheric pressure, pressure of the vacuum line, and some kind of surface profile feedback.? I tried all that a long time ago and it was just to insense for my DIY skill set.? ?

As far as making a vacuum regulator, you will need to tie in something like a piriani meter or a thermocouple meter to a feedback loop that controls a calibrated leak of some kind.? The trick is that it is all temperature dependant and everything will be changing all the time.??

Drew in sunny FLA??

On Mon, Jul 27, 2020 at 1:50 PM Jacques Savard <jacquessavard@...> wrote:

I? am not in the process of mirror alluminium?

?

Only in vacuum? control

?

I use a circle? from a byke wheel

?

Put a alluminium? sheat? over? and? peut a cover in the back

?

Like this? if? <I make? some? vacuum? betting I have? a curve? in the front

?

This ?curve? look like a parabole? od near a? Astro mirror

But ?not exactly? it is a catenaray? curve? like? the calble over a sdpended? brige

?

And ?not usable? for? astronomy? mirror

?

But good? for? my? sound? application

?

My ?problem is? to control? the vacuum

?

I have? some linkage? in the system

And ?have to pur some? vacuum contanly

?

In ?vapor instrumentation we have? pressure? analog regulator

?

Ne electronic? at all

Juste ?mechanical ?we have? differential? ajust? integration of error

?

But ?that? not work? with ?vacuum

?

I seach? for? more? then just a valve

?

Is it possible? ???

?

?

Jack 47 71

?

?

?

Can you give a few more details on your chamber/ what you're trying to achieve? Is this a sputtering process?

 

Doesn't sound like that high of a vacuum then, but lots of variables. What's the governing metric? How precisely do you need to control? What's the limiting budget?

If vacuum level is the metric, there's a pretty good thread using an MPX5100 and an Arduino for vacuum measurement (add a ?if you need environmental feedback). Maybe couple that with a vacuum generator and a proportional solenoid valve?

1 - 5 of 5