Notes tagged with spectrometer

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PLab 3 Spectrometer Upgrade Prototype

by stoft | 2 days ago | 6 | 226 views | 3

Even though the ink is barely dry on the new manuals for the PLab 3.0 Spectrometer Kit, I'd like ...

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CFL Cal Error Explained

by stoft | 3 days ago | 0 | 145 views | 0

The PLab spectrometer can be, and should be, calibrated for wavelength. Presently this can be acc...

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Optimal Slit Width

by stoft | 3 days ago | 0 | 213 views | 1

The PLab spectrometers use a thin slit to provide pseudo-collimated light which has been effectiv...

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PLab 3 Sanm Camera Focus

by stoft | 6 days ago | 0 | 216 views | 2

There has been continuing discussion about PLab spectrometer camera focus since poor focus can ad...

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PLab Spectrometer Gain-Correction

by stoft | 7 days ago | 5 | 245 views | 2

Calibrating the PLab spectrometer for absolute intensity will likely remain a difficult and expen...

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Planning for Spectral Workbench 2.0

by warren | 22 days ago | 17 | 527 views | 3

Hello Spectral Workbench community! Do you wish you could do more with Spectral Workbench? Do y...

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Working with the Spec. 3.0!

by stevie | about 1 month ago | 2 | 560 views | 4

I was interested in testing out the new Public Lab Desktop Spectrometry Kit 3.0 and was excited t...

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Adjustment of slit in Gullaume123 spectrometer

by Guillaume123 | about 1 month ago | 1 | 451 views | 3

As promised, here are the details of the slit adjustment of my spectrometer. The clips have notes...

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Spectrometer for analysing garden soil

by Guillaume123 | about 1 month ago | 8 | 655 views | 3

I am new to this game and have already made one mistake. I hope that this effort gets published. ...

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shortlinks: putting contributors directly on a kit

by mathew | about 1 month ago | 2 | 504 views | 2

What I want to do I want to help users of Public Lab kits understand community research that goe...

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Preparing a DVD-R to act as a diffraction grating

by MrBumper | about 1 month ago | 7 | 1,223 views | 2

Main image - A segment of a DVD-R bottom layer with the photo-reactive dye removed See also - ht...

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Question: Spectrometer Desing

by Deforme | 3 months ago | 2 | 697 views | 1

Let's think, we have a detector array (128x1 and each cmos detector responds 400 to 1000 nm TSL14...

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a paper spectrometer design, pt 2

by mathew | 3 months ago | 11 | 1,595 views | 3

What I want to do This is a substantial revision to an earlier design, which integrated a bunch ...

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Low-cost multimeter colorimeter

by jakemartin | 3 months ago | 4 | 932 views | 2

What I want to do Make low cost quantitative measurements of the concentration of chemicals in s...

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a paper spectrometer design

by mathew | 4 months ago | 7 | 1,214 views | 3

What I want to do build a spectrometer that doesn't use a conduit box, out of mostly paper and c...

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CFL detection by contrast, for auto-calibration

by warren | 4 months ago | 0 | 747 views | 0

What I want to do I was thinking we might be able to do a crude but very fast CFL detection by m...

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Passing Light Through an Object.

by amysoyka | 4 months ago | 0 | 873 views | 1

What I wanted to do Related Posts: http://publiclab.org/notes/amysoyka/10-07-2014/a-lil-box-for-...

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Spectral Workbench previewing and clipping warnings

by warren | 4 months ago | 1 | 1,881 views | 2

Just a quick update here - I added a webcam preview to the capture interface (see above) as well ...

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Quantifying reflector brightness assistance

by warren | 5 months ago | 1 | 564 views | 1

What I want to do At the New Orleans oil testing meetup, started using reflective foil mylar (li...

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shorter spectrometer geometry with two slits?

by mathew | 5 months ago | 3 | 844 views | 2

What I want to do answer two questions: Can straylight be eliminated in a simple spectrometer se...

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PVC Pipe Fitting Modification to 3D Printed Body

by bsugar | 5 months ago | 1 | 1,215 views | 2

Special thanks to a friend at my local hometown library for her help in making this possible, and...

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A Lil' Box for the Oil Testing Kit. (Incomplete)

by amysoyka | 5 months ago | 7 | 639 views | 3

Oil Testing Kit from a sheet of A4 Paper? (kind of...) Sometime ago, @warren and @mathew were tr...

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Public Lab Launches a Kickstarter for a Homebrew Oil Testing Kit

by liz | 5 months ago | 1 | 1,564 views | 1

NEWS RELEASE FOR IMMEDIATE RELEASE September 24, 2014 Public Lab Launches a Kickstarter for a Ho...

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Oil fluorescence scanning on an Ocean Optics spectrometer

by warren | 5 months ago | 2 | 972 views | 1

What I want to do At LEAFFEST 2014, Mary, Luisa, and others reproduced the kind of fluorescence ...

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Graded oils using UV fluorescence

by mathew | 5 months ago | 22 | 1,080 views | 1

What we want to do Me and @Warren are trying to replicate the heavy to light sorting of oils, a...

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Better smoothing and equalizing graph height for comparison of oil spectra

by warren | 5 months ago | 2 | 1,236 views | 1

What I want to do Based on the difficulties @mathew highlighted in his research note yesterday, ...

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Replicating the Grading of oils with UV Fluorescence on other cameras pt 1

by mathew | 5 months ago | 4 | 647 views | 0

What I want to do replicate the results of my previous note using different other cameras. I wa...

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Grading oils with UV fluorescence

by mathew | 6 months ago | 5 | 621 views | 0

What I want to do I want to be able to grade oils from light to heavy. I'm going to use a means ...

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LEAFFEST 2014 accounting

by cfastie | 6 months ago | 6 | 876 views | 8

. 18 LEAFFEST attendees . 10 tents on lawn . 50 % of attendees at their first LEAFFEST . ...

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Laser Pointers and the LIF Literature

by mathew | 6 months ago | 1 | 952 views | 1

*LIF stands for Laser Induced Fluorescence. What I want to do I want to answer three questions ...

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