Notes tagged with spectrometer

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Sneak preview of new Spectral Workbench sets display

by warren 2 days ago | 0 | 133 views | 0

Check it out here: http://spectralworkbench.org/sets/show2/2446 And see the embed here:

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Silhouette Cameo desktop paper cutter for prototyping

by warren 2 days ago | 2 | 124 views | 0

What I want to do I've been wanting to do more laser cutting to prototype things like the Oil Te...

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Musings: Spectrometer Stability

by stoft 16 days ago | 9 | 460 views | 2

My experiments with the PLab 3.0 spectrometer and PLab oil-test kit prototypes demonstrated the r...

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447nm Oops!

by scottvr 18 days ago | 2 | 362 views | 2

Careful with even the backscatter from 1000+mW Watching my laptop screen, smelling something bur...

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Testing the Oil Testing Kit: identifying a "somewhat unknown" sample

by warren 18 days ago | 0 | 458 views | 2

I finally made time to test @mathew's prototype Oil Testing Kit attachment for the Public Lab Spe...

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Announcing the Oil Testing Kit Public Beta Program

by ygzstc 18 days ago | 1 | 2,069 views | 2

You may have seen hints of this across the site in recent weeks, but today, Public Lab is formall...

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Testing if light leaks through the walls of the PL Spectrometer v3

by warren 19 days ago | 2 | 375 views | 1

Following up on a note on possible light going through the black cardstock walls of the v3 spectr...

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Oil Testing Kit -- mixing 5W30 20W30

by gretchengehrke 21 days ago | 2 | 307 views | 1

What I want to do Since the oils in the Oil Testing Kit 5W30 and 20W50 are distinguishable by th...

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Achieving a high quality spectrum

by Ankur_Bodhe 21 days ago | 3 | 325 views | 0

Hey Guys, So I wanted to use the spectrometer to Characterize Carbon Nanotubes. I used a 50 W hal...

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Desktop Spectrometry Kit (V3) for VNIR Field Spectroscopy

by lukebrown 21 days ago | 7 | 453 views | 3

Introduction I was interested in whether the Desktop Spectrometry Kit (V3) could be successfully...

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Oil Testing Kit -- discerning 5W30 20W30

by gretchengehrke 22 days ago | 1 | 292 views | 2

What I want to do I am taking spectra of the five oils in the Oil Testing Kit, and I forgot to l...

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Mid stream Urine analysis: Check whether you need to drink more water or not

by chongyukwai 2 months ago | 4 | 751 views | 2

Background: This is an experiential application of using spectro as a measurement of the concentr...

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Internal Image of Desktop Spectrometer with "Gum Stick" Camera

by kbollhorst 3 months ago | 0 | 967 views | 2

I have posted an image of the "gum stick" camera version of the desktop spectrometer. I wish to a...

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The accidental raspberry pi spectrometer: first light

by khufkens 3 months ago | 0 | 1,163 views | 2

I put my design together today. The design used is shown below, but has some issues still. Genera...

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can a surface sheen be collected for oil testing?

by mathew 4 months ago | 1 | 798 views | 2

image by by Cesar Harada CC-BY-NC-SA Can an oil slick be picked up off the surface and concentra...

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curved grating

by DarkGreen 4 months ago | 2 | 952 views | 0

so... I use a blank DVD-R, and ofcause that makes the grating curved. Are there any software for...

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a history of crediting contributions

by mathew 4 months ago | 3 | 1,288 views | 3

photo credit @Stevie, Washington University students build camera rigs. Giving proper credit for...

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Link to: An introduction to the use of fluorescence spectroscopy in inorganic analysis

by Frikkie 5 months ago | 0 | 1,471 views | 1

This is some very useful info: www.perkinelmer.co.kr/files/fluorescence_inorganic.pdf

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Baffle for Spectrometer 3.0

by ke4rjg 5 months ago | 3 | 1,074 views | 2

Sometimes, scattered light can degrade the contrast of the spectrum, particularly if you are obse...

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PLab 3 Gain Correction

by stoft 5 months ago | 10 | 900 views | 3

In a previous note ( http://publiclab.org/notes/stoft/02-25-2015/plab-spectrometer-gain-correcti...

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Gulf Coast: Build your own spectrometer event!

by stevie 5 months ago | 0 | 1,005 views | 2

Public Lab and IDIYA are hosting a “Build your own spectrometer” event! Colored light is given o...

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Multi parameter analysis using a DIY Spectrometer

by Frikkie 5 months ago | 4 | 1,203 views | 4

A colorimeter, flame photometer and conductivity meter all in one. A few years back I got fas...

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PLab 3 Spectrometer Upgrade Prototype

by stoft 5 months ago | 6 | 1,174 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 5 months ago | 3 | 791 views | 2

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 5 months ago | 0 | 771 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 5 months ago | 0 | 671 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 5 months ago | 8 | 720 views | 4

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 6 months ago | 20 | 2,050 views | 5

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 6 months ago | 4 | 1,293 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 6 months ago | 1 | 713 views | 3

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

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