USB Camera Spectrometer
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- čas přidán 13. 09. 2024
- A simple and easy to use design for a DIY spectrometer. The components are a 55mm handheld spectroscope, 8MP HD Webcam IMX179 Sensor High Speed USB Camera Module Board USB camera, 6-22mm 5MP M12 mount varifocal lens F1.6 lens, M2 bolts and a 3D printed structure. Also includes a quick comparison to the Gaudi Labs spectrometer.
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Hey, thank you - exactly what I've been looking for....for many years! cheers
Near Slit , What is there ??? Diffraction grating or Mirror ?How to select wavelength for this caase? for example 400-700nm for analytical analysis of chemical solution or dye /Where you had connected DVD Diffraction grading? Have you connected the mirror? At the edge of the slit? Or you have connected in front of the camera-Lens?How to get absorbance -wavelength curve for a cuvette
Can it be treated as raman spectra?
How to place the sample? For detection
very nice...just what I wanted to analysis spectrum of various sources... but can you provide a parts list? the lenses is not available on Amazon at the moment. thanks, Gene
If you search for "handheld spectroscope 55mm", "6-22mm 5MP M12 mount varifocal lens F1.6", “8MP HD Webcam IMX179 Sensor High Speed USB Camera Module Board”, and M2 bolts you should be able to find everything. I’ve also updated the video description with the terms as well for future reference.
Great! However, the link for your spectroscope is broken... can you provide the company and part# for this? Thanks!
You should be able to find it by searching for: handheld spectroscope 55mm. The links change fairly often but here is an example: www.amazon.com/TEKCOPLUS-Handheld-Diffraction-Spectroscope-Gemological/dp/B01HNRVY3Y/ref=sr_1_fkmr0_1?crid=3UFLA4T931WM7&dib=eyJ2IjoiMSJ9.cihCUFztR9KBXzVPirBO1kMHkSmiE9agGe7ROZI_LUq8MBnyWQWJnANJ8xEtHZe_4ADagbFVYHIsG8OGk7CY0A.F70IDcqNufrmAWrzGD4G8VhXS5nlssK5sDIAlBwG9G8&dib_tag=se&keywords=handheld+spectroscope+55mm&qid=1720506953&sprefix=handheld+spectroscope+55mm%2Caps%2C265&sr=8-1-fkmr0
@@qosmoschem Thanks - very helpful!
WHich software are you using for the tool you built? I am loving the build! Could this also capture spectrum from glowing metals maybe [Laser Induced Breakdown Spectroscopy = LIBS]?
I use SpectraGryph for the spectrum analysis. I'm not familiar with LIBS, but if it produces a signal in the visible light range then I guess you should theoretically be able to use this to detect it.
The reason I ask is that a handheld unit to identify junkyard scrap cost at present an astounding $15-50,000 ! It would be terrible if a DIY fellow could make a unit. [hint hint] I am thinking a laser or even a plasma cutting machine for light source @@qosmoschem
The sensor seems to grab plenty of IR data about 700nm, but what about UV below about 380nm? Is there a UV filter on the IMX179 Sensor?
I couldn't find any information that the IMX179 sensor has a UV filter. However at some wavelength the glass in the lens will start to absorb UV.
@@qosmoschem thanks!
Note also that the camera sensor is based on silicon which has a peak response at around 1000nm and drops off a cliff above that. Below that it falls (sort of linear) to somewhere around 0 at 200-400nm. The camera doesn't give you a lot of gain options so it's hard to do much about it. If you want good IR and UV response you best use a photo diode or photo multiplier tube that has an exotic glass/crystal face except you then need to build hardware to mechanically select which wavelength you want to measure. This gives you great results but takes a lot more effort.
I've wondered about using a hard drive actuator to sweep the diffraction grating. Seems like might be effective for targeting a PMT. I also was wondering about sweeping back and forth tuned for persistence when using a finer line diffraction grating and wanting to try this later thought along with using a laptop HD sled to control the slit width. @@etmax1
Kindly give a circuit diagram or assembling procedure for the same. Thank you. What is that software? Software link..Please provide. How to operate the software is not clear at all. Good work.
Can it be treated as FTIR or NMR
Dear Sir,
Actually, I want to plot that curve from Spectra getting from Smart Phone for different concentrations of DYE on a single window for wavelength-Absorbance.PFA. Thanks. Seeking Software tutorial of software for that like IMAGE J Or any other else.
Actually, I want to plot absorbance & wavelength curves in a single frame or window with all possible concentrations of methylene blue DYE. From spectra
I want you to guide me about that software for the requirements. Spectra is also attached as my possible setup. This means an optical path for the spectrophotometer
would you tell me the type of usb modul camera for spectrometer with optical fibre.
The Gaudi Labs spectrometer uses hbvcam 1901-720 v11
Hi @Qosmos Chem it seems only two of the components are no longer available, any suggestion?
The listings from the sellers often get discontinued. You can always search for the keywords though to find equivalent parts from other sellers. The key search terms are: M2 screws, CCTV lens 1/2.5 inch 6-22mm 5MP M12 mount varifocal lens F1.6, 8MP HD Webcam IMX179 Sensor High Speed USB Camera Module Board, and 55mm spectroscope. That should get you what you need.
@@qosmoschem Thank you. Any recommendation on how I can adapt this to include 300nm-400nm as well?
Unfortunately the camera sensor just won't work in that range. You would need to find a camera sensor that is sensitive in the UV range.
can you provide link for the STL files for your mount?
The following Github link (also included in the video description) now contains the STL file for the spectrometer: github.com/qosmoschem/Spectrometer
Can it be treated as FTIR or NMR