[Alt-photo] Exposure Unit
don at sweetlegal.co.nz
don at sweetlegal.co.nz
Wed Sep 6 01:31:03 UTC 2017
If you are reading the UV sensor values at regular intervals into an
Arduino, this sketch may help. It is said to produce a running average
of the values. Displaying that and the elapsed time would give you a
quick way of calculating the dose.
On 2017-09-06 02:04, Greg Brophy via Alt-photo-process-list wrote:
> Hi Don and Larry. Thanks for the interest. I am using Arduino with the
> ML8511 sensor and I need to figure out how to code for dose.
> “Radiant exposure (H), is dose, and is described in joules (unit of
> energy) per square meter (J m2) or joules per square centimeter (J
> cm2). Note that a watt is a joule per second thus the dose rate (W
> cm2) multiplied by the exposure duration (seconds) equals dose (J
> So basically I need to create a timer, then multiply that with the W
> I just found out the sensor I am using is no longer available and will
> have to find a new one.
> I am using the basic code that was provided with the sensor.
>> On Sep 4, 2017, at 6:18 PM, Larry Ogrodnek <ogrodnek at gmail.com> wrote:
>> Hey Greg, that sounds really great! Would love to hear about it when
>> you are ready to share.
>> I have some C firmware experience and may be able to help depending on
>> what you need.
>> I used to make/sell some LED nametag kits
>> (http://analogmachines.com/p/nametag/) and have some experience in
>> basic/amateur hardware/software work...
>>> On Mon, Sep 4, 2017 at 9:49 AM, Greg Brophy via
>>> <alt-photo-process-list at lists.altphotolist.org> wrote:
>>> I also wanted to order one of the light measure UV meters and was
>>> disappointed that it was discontinued. I went on Facebook and some
>>> people pointed me in the right direction for creating my own which I
>>> am now in the process of doing. I have a prototype I am working on
>>> and am just trying to fix a few kinks in the code, but when done I
>>> will share how to do it or if people don't want to make it, I can
>>> make it as well. I also plan on making a few improvements like touch
>>> screens. The best part is that most of the parts are open source and
>>> what isn't can easily be printed with a 3-D printer. I will send out
>>> updates as I get closer. If anybody know how to program in C++ and
>>> wants to help, let me know.
>>> Alt-photo-process-list | altphotolist.org
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