UV Sensor

You may also need to consider that unshielded florescent lights emit strongly in the UV and the sunlite is an increase. If you are able to put a UV blocker (as used in clear plastic report covers) coating on light covers and windows the UV quantity will be decreased. If the lights in your facility were replaced the UV may have increased where people are exposed to the lights for many hours per day. The UV from the lights also contributes to cataracts, according to an eye laser tech.

I've seen light meters that measure in the UV.

That isn't a problem with this ALF (Assisted Living Facility). It's a reconverted mansion on Long Island, NY, and has incandescent lighting or spiral florescent.

No, it seems that they get feisty when they reach 73. They want to spend every free moment in the sun and, at times, nudity becomes an issue. I need to determine quickly if they are close to maximum daily exposure without being too obtrusive about it. That's another thing - the illusion of Independence is crucial for their well being, hence all the skull-duggery.

I'm praying for either a UV expert of a Sensor guru can point me in the right direction.

Not that I don't appreciate your reply, guest. Thanks for the suggestions.

Ari (Orpheuse)

With all the sunblock formulations, wouldn't it be easier to provide the ALF residents with same, unless they are too proud or stubborn to use it?

I could easily design an electronic device that would do this task. For a device as you have described you would probably need a chemical engineer.

You may want to do a casual patent search and if you find nothing work up your idea and go to someone like Johnson & Johnson or 3M who produce health care products.

Good luck!

You can use HAMAMATSU UV photocell with the diameter of 5mm

On the other han you can remove from a fluorescent tube the powder inside the cylinder and can color it. In UV ligh it will be bright.
On the third hand you can by UV dosimeter. Look at the Cole-Parmer catalog (now Kurt J. Lesker Co.) or at coleparmer.com.

Thank you, one and all. I've got some engineering to do.

Ari (Orpheuse)