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| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| khufkens | "There are three variables in this setup: 1) the light source's output, which needs to be characterized or idealized (you could use the sun as a re..." | Read more » | over 8 years ago | |||
| warren | "Uh, perhaps I am not fully understanding on my initial readthrough, but since we have a big need to characterize sensitivity in the webcams we use ..." | Read more » | over 8 years ago | |||
| khufkens | "If I can back out the spectral response I'll post it online for sure. So give it some time. " | Read more » | over 8 years ago | |||
| DarylWM | "Thanks for sharing your work. I've had the same trouble trying to find the spectral response curve for the OV5647 sensor, so this technique was ver..." | Read more » | over 8 years ago | |||
| stevie | "Woah! Awesome thread... " | Read more » | about 9 years ago | |||
| amysoyka | "There is this really cool trick for peeling CD's. This video shows how it works: CD spectroscope: http://youtu.be/-cH_2mbsvBo " | Read more » | about 9 years ago | |||
| btbonval | "Thanks for the screenshot. I think it will help give people an idea of what they're getting if they should choose to use this meteorological statio..." | Read more » | about 9 years ago | |||
| mathew | "yeah! exactly. We have to do it in .1mm according to the article. I'm thinking about peeling the reflective layer off and making it sticky then s..." | Read more » | about 9 years ago | |||
| danbeavers | "Or spray glue on a DVD? " | Read more » | about 9 years ago | |||
| mathew | "I'm also looking at using stickypads. just tape catching particles. I wonder if we could run 5" tape disks in a DVD drive? " | Read more » | about 9 years ago | |||
| mathew | "woah. that CD idea is great! the biggest issue with particle monitoring is getting the particle counts measured in mircrograms/cu meter. " | Read more » | about 9 years ago | |||
| amysoyka | "Looks like it has kind of been done elsewhere for a slightly different purpose: http://pubs.rsc.org/en/Content/ArticleLanding/2011/LC/c0lc00451k " | Read more » | about 9 years ago | |||
| amysoyka | "You know what... I'm looking at this image here and can't help but think we could repurposed some old CD drives. http://en.m.wikipedia.org/wiki/Pa..." | Read more » | about 9 years ago | |||
| amysoyka | "Sure. Someone I was speaking to recently was talking about the turbidity of water being an indicator of particulate matter. I wonder if there is ..." | Read more » | about 9 years ago | |||
| mathew | "that's in beta too. I"m thinking more inline with the dustduino or Speck's cheap sensors, only with more controlled airflow. both really need corr..." | Read more » | about 9 years ago | |||
| amysoyka | "Edit: I just realised it is the Alima that does particle sensing. My apolpgies. Netatmo tries to work our Air Quality as a whole & that is with..." | Read more » | about 9 years ago | |||
| mathew | "hmmm. i can't find their particle sensor. is there a standard sensor format for these things or are they all unique? " | Read more » | about 9 years ago | |||
| amysoyka | "The weather station we have does let you plug in new sensors - the issue would be that it wouldn't display on the display - as that is limited to w..." | Read more » | about 9 years ago | |||
| mathew | "I'm interested in piggybacking particle sensors onto weather stations-- does yours let you plug in new sensors? existing commercial sensors are us..." | Read more » | over 9 years ago | |||
| btbonval | "Thanks Amy. It'd be great if you could edit this note to show us a screenshot or two of the web page after it is up and running, just to demonstrat..." | Read more » | over 9 years ago |