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Global Radiation monitoring system

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radhoo

Wed Apr 23 2014, 02:46PM

Registered Member #1938 Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 701

I found a Chinese manufacturer to do the PCB works (including soldering) and another for the aluminium enclosures (including engraving, cutting, etc) . Anyone has any experience with manufacturing processes ?

What I am looking for is a way to assemble everything together in one place, to save on moving the devices around too much. Calibration and writing the software will then be made at my end, no automated process for that yet. Having all these manufacturers taking what I previously did by hand, I expect to be able to offer some very competitive prices when entering the market.

Steve Conner

Wed Apr 23 2014, 04:03PM

Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706

I've designed dozens of industrial electronic gizmos and taken them through to factory production. It has been a 10 year learning experience and I could probably write a book about it. For starters, read Bunnie Huang's "Factory Floor" series about dealing with Chinese contract manufacturers.

Steve Conner

Thu Apr 24 2014, 03:15PM

Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706

PS: Turns out Bunnie has already made a Geiger counter!

radhoo

Sun May 11 2014, 05:31PM

Registered Member #1938 Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 701

Thanks Steve, that's a good read indeed. Where I am now, I'll try to do the most with the limited resources I have. I want to see this project happening, even if that will cost me a few mistakes down the road.

tobias

Tue May 13 2014, 11:57PM

Registered Member #1956 Joined: Wed Feb 04 2009, 01:22PM
Location: Jersey City
Posts: 172

Any ideas for what happened at Denmark?

That is a nice looking spike right there!

[EDIT] It is a live graph! Change interval if looking after May 14th.

Mads Barnkob

Wed May 14 2014, 05:52AM

Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968

tobias wrote ...

Any ideas for what happened at Denmark?

That is a nice looking spike right there!

[EDIT] It is a live graph! Change interval if looking after May 14th.

Hey Tobias

It is my unit, it is one of the first units and it have a few flaws that are being worked on, it was shutting itself down software wise because of too high temperature and the measurements are most likely the result of short measuring intervals just after restarting or when it was overheated.

I have taken it offline now to have it upgraded :)

radhoo

Thu Jun 12 2014, 09:15AM

Registered Member #1938 Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 701

I've settled for LCTech for now, you probably know the many modules available on ebay. As Steve pointed out, communication goes slowly because of language and other differences. Nevertheless progress has been made. I will also go for an indiegogo campaign soon.

I still have a few of the later prototype units, if anyone is interested.

radhoo

Fri Jun 27 2014, 08:28PM

Registered Member #1938 Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 701

The Chinese manufacturer I've been discussing with from March has finally signed an NDA, I found a positive mail in my mailbox today, and so I am ready to start the long and difficult process of discussing the PCB details and have them made and assembled in China, to hopefully reduce costs and be able to provide a decent number of detectors. For the aluminium rugged cases, things are already in place.

I've migrated the centralised radiation portal to wordpress, I find it better looking, but I'd love to know you're opinion too. Any suggestions are welcome.
See it here:

There is also the blog section, were I plan to post short news, give it a read, there are already 3 posts there:

Attached is a pic with the devices that are ready to ship next.

1403900889 1938 FT155675 Img 20140624 125535

radhoo

Sun Jun 29 2014, 11:39AM

Registered Member #1938 Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 701

Just joined the hackaday.io competition. Winning it or at least exposing the project there, would help push the development further, and expanding the network:

Counting on your support, it only takes seconds to vote and we all get to benefit from having this network up and running.

Mads Barnkob

Sun Jun 29 2014, 01:17PM

Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968

radhoo wrote ...

Just joined the hackaday.io competition. Winning it or at least exposing the project there, would help push the development further, and expanding the network:

Counting on your support, it only takes seconds to vote and we all get to benefit from having this network up and running.

Good luck with the competition.

I signed up and voted, true it is easy with hackadays new project site, almost web 3.0 :)

I made a separate thread about some measurements made with the uRadMonitor doing a thunder storm that shows elevated radiation, the possible causes is to be discussed there:

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