| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| mathew | "I screen-capped this graph of different sensors and their sensitivities and put it in this comment, the original link is dead. " | Read more » | over 8 years ago | |||
| mathew | "FLIR is looking in a narrow band-- 3200-3400nm -- where these hydrocarbons are most absorptive. @geraldmc pointed out that there are weaker absor..." | Read more » | over 8 years ago | |||
| mathew | "re: do we need to pop the thermistor outside the cap? the smallest , most easily filled hole would be a 'vented' screw. You'd probably want a 6-..." | Read more » | over 8 years ago | |||
| mathew | "files above didn't prep for print right. Updated: riffle-blank2.zip " | Read more » | over 8 years ago | |||
| mathew | "here are some blanks for the riffle+CT board housing-- just a rectangle that is 134mm with screw holes centered in the 106mm riffle section at 65mm..." | Read more » | over 8 years ago | |||
| mathew | "currently the schematic links to github are broken. @donblair can you re-link please? " | Read more » | over 8 years ago | |||
| mathew | "some sensors, like 1-wire sensors, have a unique hex code already to allow them to be networked. You could record a registry of those easily and a..." | Read more » | over 8 years ago | |||
| mathew | "+1 to not putting units on the CSV file. The 'signal' that this data needs further work/calibration is important and I think well articulated her..." | Read more » | over 8 years ago | |||
| mathew | "I'm trying to figure out what this flat spot is, its just soo flat! I associate it with a blow out. Digging in to the spectra themselves on your ..." | Read more » | over 8 years ago | |||
| mathew | "you may want to connect with @John_Wells and the West Lothian Archaeological Society about filters for identifying underground features. They've b..." | Read more » | over 8 years ago | |||
| mathew | "I haven't seen it on the camera we're using in the current spectrometer, but many other cameras have in-camera software that filters peaks. I'm not..." | Read more » | over 8 years ago | |||
| mathew | "I'm working on creating a spreadsheet out of these equations. @Marlokeno it looks like I'm going to use Sutherland's gas law along with average te..." | Read more » | over 8 years ago | |||
| mathew | "i agree with chris. infragram.org doesn't reflect current best practices or our research interests either, as ned continues to advance calibration..." | Read more » | over 8 years ago | |||
| mathew | "the crude looks really clipped-- I know there's a dip in the middle but it is really topping out. " | Read more » | over 8 years ago | |||
| mathew | "I may be wrong. this spectra in the RGB channels isn't clipped, but there does appear to be a flat spot that looks a bit like clipping: https://sp..." | Read more » | over 8 years ago | |||
| mathew | "the 80W-90 looks a bit clipped in the blue: https://spectralworkbench.org/spectrums/55075 the crude is substantially clipped in the blue: https:..." | Read more » | over 8 years ago | |||
| mathew | "Cindy the flat spots on your spectra are the blown out blue channel: https://publiclab.org/notes/mathew/09-23-2014/graded-oils-using-uv-fluorescenc..." | Read more » | over 8 years ago | |||
| mathew | "Ethan, the flat spot is clipping of the spectra based on blowing out the blue channel: this is one of the problematic issues mentioned in the ins..." | Read more » | over 8 years ago | |||
| mathew | "those flat spots are the clipping I warned about in my note: https://publiclab.org/notes/mathew/09-23-2014/graded-oils-using-uv-fluorescence " | Read more » | over 8 years ago | |||
| mathew | "awesome resources and case! hadn't seen this summary of low cost PM sensors: http://www.aqmd.gov/aq-spec/evaluations#&MainContent_C001_Col00=2 " | Read more » | over 8 years ago | |||
| mathew | "if you're interested, we made Dylos drivers for Open Pipe Kit for the Pi-- its a flexible platform for pushing data to Phant and any other database..." | Read more » | over 8 years ago | |||
| mathew | "the software directions are looking real promising! as for hardware, I think you're absolutely right, @Donblair-- Expose the RTC alarm and let user..." | Read more » | over 8 years ago | |||
| mathew | "nice! thanks for documenting the Excel procedures Paul! good job on formatting too! " | Read more » | over 8 years ago | |||
| mathew | "Awesome technique! the look of the 5w-30 reminds me of thawed out frozen diesel fuel. I think the milkiness in diesel from freezing is from wax cr..." | Read more » | over 8 years ago |