I''m working on a full automatic aquarium
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An indirect but effective approach would be to switch on the light, and then
use electro-optical techniques to smoothly increase the light intensity.
Possible examples would be a polarization filter for the light, combined
with crossed polarizers. Rotate one of the latter to increase light
intensity. Another approach would be a Kerr cell, which allows electrical
control of light intensity.
Dennis
Original Message
From: <iceninevt@y...>
To: <basicstamps@yahoogroups.com>
Sent: Tuesday, November 20, 2001 8:07 AM
Subject: [noparse][[/noparse]basicstamps] Re: I'm working on a full automatic aquarium
> Dimming flourescent tubes requires the use of a special ballast and
> dimmer. The ballast is either expensive, or very expensive, depending
> on the size/number of lamps. Even with the necessary ballast and
> dimmer the effect is not smooth. I doubt you will be satisfied.
>
> --- In basicstamps@y..., "Smalcor" <Smalcor.AmusementsProducts@1...>
> wrote:
> > Hello, I have a few problems, I'm trying to control fluorisent
> light. I know it is possible, I only don't know how ! I Want to use
> this for my aquarium and for a neighbour of me who has his special
> birds in his house.
> >
> > I'm trying to build a circuit to be able to smoothly turn on my
> fluorisent lights of my aquarium in the morning and smoothly turn
> them off in the evening. I want this to be controlled by a basic
> stamp. Also I would like to monitor my temperature and PH value end
> display this together with the current time on a LCD. Has anyone any
> experiences with this or is there someone who can help me work this
> out?
> >
> >
> >
> > [noparse][[/noparse]Non-text portions of this message have been removed]
>
>
> To UNSUBSCRIBE, just send mail to:
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Body of the message will be ignored.
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>
>
>
use electro-optical techniques to smoothly increase the light intensity.
Possible examples would be a polarization filter for the light, combined
with crossed polarizers. Rotate one of the latter to increase light
intensity. Another approach would be a Kerr cell, which allows electrical
control of light intensity.
Dennis
Original Message
From: <iceninevt@y...>
To: <basicstamps@yahoogroups.com>
Sent: Tuesday, November 20, 2001 8:07 AM
Subject: [noparse][[/noparse]basicstamps] Re: I'm working on a full automatic aquarium
> Dimming flourescent tubes requires the use of a special ballast and
> dimmer. The ballast is either expensive, or very expensive, depending
> on the size/number of lamps. Even with the necessary ballast and
> dimmer the effect is not smooth. I doubt you will be satisfied.
>
> --- In basicstamps@y..., "Smalcor" <Smalcor.AmusementsProducts@1...>
> wrote:
> > Hello, I have a few problems, I'm trying to control fluorisent
> light. I know it is possible, I only don't know how ! I Want to use
> this for my aquarium and for a neighbour of me who has his special
> birds in his house.
> >
> > I'm trying to build a circuit to be able to smoothly turn on my
> fluorisent lights of my aquarium in the morning and smoothly turn
> them off in the evening. I want this to be controlled by a basic
> stamp. Also I would like to monitor my temperature and PH value end
> display this together with the current time on a LCD. Has anyone any
> experiences with this or is there someone who can help me work this
> out?
> >
> >
> >
> > [noparse][[/noparse]Non-text portions of this message have been removed]
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>