Homebrew_PCBs

Discussions of the need for a UVA Dosimeter are on topic.

Discussion of the design are not. Electronics_101 is an excellent place for that.

http://groups.yahoo.com/group/Electronics_101

Steve Greenfield AE7HD
moderator of both groups

--- In Homebrew_PCBs@yahoogroups.com, william casselberry <wcasse@...> wrote:
>
> If design and code was available, would you build one? What
> features should it have?
>  
> Uses
> * Check your safe light
> * Check your light box
> * Check your photoresist
>
> * Share results with group
> * Consistent results regardless of light source
> * Use the sun
>
>  
> Design ideas
> * Battery powered
> * Thin sensor at end of FFC (fit under glass)
> * Display can be pointed in any direction
> * Display dose in mJ/cm^2As for the photodiode, I thought that the ML8511 would
> work well. It outputs 1.0v at 0 mW/cm^2 (no UV light) with constant slope to
> 2.8v at 15 mW/cm^2 (lots of UV light).
>