10/16/2016 at 21:06 •
This is a CFL calibration done today using Spekwin32 control prototype capture program, and this is a test run for the ELP-USBFHD01M-l21 CMOS camera placed in it's mounting enclosure;
10/13/2016 at 13:23 •
This is the new prototype CMOS Camera module mount, for the DAV 5 UV/VIS Spectrometer which I am now starting to bring back to life. I designed the camera mount using FreeCad version 0.16 and sculpted a working model out of high density matte foam.
06/20/2016 at 09:02 •
410nm UV high pwr 1W LED 4.0vdc 350mA-Prolight
470nm Blue high pwr 1W LED 4.0vdc 550mA-Cree
623nm Red high pwr 1W LED 2.7vdc 700mA-Cree
400nm UV thru-the-hole LED 40mA 9vdc-Generic
470nm Blue LED 1W 2D EEM Plot
623nm RED LED 1W 2D EEM Plot
06/19/2016 at 12:52 •
This is resolution test number 2 for my spectrometer after adjusting the DVD grating, I scanned a sample of Fluorescein in Ethanol and compared it to that of the standard done by the Oregon Medical Laser Center for the same sample: I have a quantum yield of 62.8 and a peak wavelength of 540nm, which hits the mark at the second peak on the OMLC's plot.
06/18/2016 at 23:50 •
I did another resolution test for the DH 4.2 spectrometer today because I made some minor adjustments to the DVD grating and got a really good calibration with a quality fit of 7. ( the middle BLUE band is at 438nm ( 3nm over specs/perfection would be 435nm,) and the GREEN band is at a near perfect 547nm ( 1nm over spec.)
So I am just tickled pink!!
06/17/2016 at 09:59 •
Well I finally got around to doing a current cost analysis for this project and I was pleased to see I was only .86 cents over budget!
My initial goal was to build a reliable and accurate homemade spectrometer, with professional industry standard resolution...and I'm getting ohhhh so close!!
06/11/2016 at 17:13 •
Top View and Front View of PWR supply
I made a new power supply for my LEDs, and wanted to test it out so here are the results of that test:
Power supply: Old Zip drive/ITE/ Input-120vac 60Hz 0.3A
Output- 5vdc 1A
Buck puck- LED driver module - 5-14vdc input 1000mA
400nm UV high pwr LED 3.5vdc 350mA/ Prolight 470nm Blue high pwr LED 3.5vdc 700mA/ Cree 623nm Red high pwr LED 2.7vdc 700mA/ Cree
- 06/06/2016 at 14:12 • 0 comments
06/04/2016 at 12:48 •
Well, I am within 5nm of the SpexFluoroMax spectrometer that the Oregon Medical Laser Center used for their spectroscopy studies. I am presenting my results here first, so everyone has a chance to soak in the value of a very simple and cost effective design verses a $25,000.00 piece of equipment...
- 06/01/2016 at 17:06 • 0 comments