Notes tagged with spectrometer

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Reduce interior reflections in your spectrometer with black ink

by warren 4 days ago | 3 | 141 | 3

Goals After building the stability upgrade to the Desktop Spectrometry Starter Kit, I needed to ...

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Building the @stoft stability upgrade for Desktop Spectrometry Starter Kit 3.0

by warren 6 days ago | 1 | 178 | 2

Build attempt At #leaffest-2016, Molly DeBlanc and I followed the instructions and photos @sto...

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Landfill leachate in Louisiana ditches?

by eustatic 6 days ago | 3 | 183 | 3

Event details Let's take water samples in the Plaquemines ditches on Woodlands Hwy, and discuss ...

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See the Fraunhofer absorption lines in sunlight

by warren 8 days ago | 0 | 217 | 1

This is a draft -- still in progress, based on this note I'm still working on: a graph of repl...

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Laser Calibration (532nm) of New DVD Diffration Grating 4.7 GB

by dhaffnersr 14 days ago | 1 | 190 | 0

Resolution and Calibration for the DH 4 v4a Spectrometer I replaced the DVD diffraction grating ...

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Comparing The Ebert CFL Spectral Image To the DH 4.0 v4 CFL Spectral Image

by dhaffnersr 16 days ago | 1 | 147 | 0

references http://publiclab.org/notes/cfastie/2-19-2013/ebert http://publiclab.org/wiki/dh-4-...

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A Near Perfect CFL (compact fluorescent light) Calibration

by dhaffnersr 16 days ago | 0 | 156 | 0

I had to run another slit width test verification, so I used Plab's spectral workbench 2.0 online...

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Empirical Verification Of Slit Width For The DH4.0 v4 Spectrometer Section II

by dhaffnersr 16 days ago | 0 | 134 | 0

Verification through quality control check procedures Using my Premeire Professional binocular m...

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Empirical Verification Of 0.05mm Slit Width of DH4.0 v4 Spectrometer

by dhaffnersr 17 days ago | 0 | 170 | 0

Understanding Spectral Bandwidth and Resolution in the Regulated Laboratory Upon closer scrutiny...

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0.05mm Slit Gillette Utility Knife Razor Blade design 100X Magnification

by dhaffnersr 17 days ago | 0 | 159 | 0

This is actually a follow up on my previous post on the two laser scans using the new 0.05mm slit...

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New Laser Testing Using a 405nm UV laser Pointer and a 532nm Portable Green Laser

by dhaffnersr 18 days ago | 0 | 151 | 0

New testing on a 0.05mm Gillette razor Blade Utility Knife Open-Air Slit (based on my previous de...

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Microscopic View of Plab Acetate slit and My Gillette razor Blade Open Air Slit

by dhaffnersr 20 days ago | 2 | 185 | 0

Using my Premiere professional binocular microscope (model - 3000,) and a new camera I got for it...

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CFL and LED Bulb Study Section III

by dhaffnersr 20 days ago | 0 | 173 | 0

Author, David H. Haffner Sr. September, 5 2016 3 Different LED bulbs and 3 different CFL bulbs f...

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Spectral Irradiance Study Section ll using The DH4.0v4 Spectrometer

by dhaffnersr 23 days ago | 0 | 241 | 1

10 Scans using a 54W 1050 lumens Halogen bulb and 8 Scans using a 10W LED 2850K bright stik This...

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Calibrate your spectrometer in Spectral Workbench

by warren 24 days ago | 1 | 529 | 4

Goals In Public Lab's spectrometry project, we've long used compact fluorescent lamps (CFLs) as ...

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CFL Spectral Irradiance Study using Spekwin32

by dhaffnersr 25 days ago | 1 | 308 | 1

10 CFL Scans using a 13W 2300K CFL (LTS brand_Generic) A CFL (compact fluorescent light,) mimics...

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Resolution Test Using 532nm Laser and 405nm UV Laser Pointer

by dhaffnersr 29 days ago | 3 | 303 | 1

Resolution Test for The DH 4.0 v4 Spectrometer (Replaced Slit with new 0.09mm Gillette metal razo...

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Effects of Solvents on Fluorescence of Biological Dyes

by dhaffnersr about 1 month ago | 0 | 325 | 0

_5 Biological Dyes in Water and Isopropyl Alcohol Author David H Haffner Sr. 08/24/2016_ Abstra...

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Final Data Analysis for My New 0.11mm Entrance Slit Design

by dhaffnersr about 1 month ago | 0 | 214 | 0

Abstract This is the final data analysis for my new 0.11mm slit design. I used Eosin Y as my med...

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Special Scan - Sweet Wyoming Crude Oil 2D EEM Analysis of 0.11mm Slit Width

by dhaffnersr about 1 month ago | 0 | 197 | 0

These are 4 EEM graphic plots showing the before and after effects of removal of Rayleigh/Raman S...

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Comparison Values for 0.09mm and 0.11mm Slit Width

by dhaffnersr about 1 month ago | 0 | 219 | 0

Here is the data for the second part of my comparison of the 0.09mm acetate film strip and the 0....

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EEM 2D Spectrums Showing Evidence of Attenuation from Imperfections in Acetate Film Strips

by dhaffnersr about 1 month ago | 1 | 235 | 0

This is part 2 from my previous research post on Microscopic View of Public Lab's Acetate film sl...

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Microscopic View of Public Lab's Acetate film slits

by dhaffnersr about 1 month ago | 3 | 245 | 0

I have wanted to do this for awhile now, and finally got around to it and I am glad I did, I took...

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UV Laser Pointer and Green Laser Spectra Through 1 Quartz Cuvette

by dhaffnersr about 1 month ago | 0 | 320 | 0

2 Different Laser Wavelength's through 6 Different Solvents I wanted to test the resolution of m...

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Carbol Fuchsin Doped with Lugol’s Iodine Solution AUG 13 2016

by dhaffnersr about 1 month ago | 1 | 244 | 0

References http://en.wikipedia.org/wiki/PH - what pH indicatio...

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SNR Data for Eosin Y Study on 8/10/2016

by dhaffnersr about 1 month ago | 0 | 259 | 0

Absorption and Emission of Eosin Y in Ethanol Eosin is a name of several fluorescent acidic comp...

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Complete Redesign of Entrance Slit

by dhaffnersr about 1 month ago | 0 | 362 | 1

I have been also working on a far more stable entrance slit design and decided to include it with...

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Build Instructions For The DH 4.0 v4 Spectrometer

by dhaffnersr about 1 month ago | 2 | 595 | 1

Here are the step by step instructions for building the spectrometer that I am using at this mome...

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Validating The DH 4.0 v4 Spectrometer using - MALACHITE GREEN (Oxalate)

by dhaffnersr about 1 month ago | 0 | 307 | 0

Environmental Impact of Malachite Green Here is an excerpt from a study done by The National Cen...

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DH 4.0 v4 Spectrometer Build Illustrations, Modifications and Specifications

by dhaffnersr about 1 month ago | 0 | 472 | 2

The ZEN of simplicity Measurements between the slit to cmos camera eye are not as critical, as p...

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