How to build a spectrometer from the College of Natural Sciences - CSU Online

[@daithiod]

Man, I’ve read some of the comments on your video and you’re getting hammered for minor spelling errors and adding music. The fact that you made the effort to demonstrate not only the basics of spectroscopy and proceed to give an example of how a simple device can bring clarity of understanding about colour and light to students is fantastic as far as I’m concerned. My take away from your video is that simple spectroscopes can be made from anything as long as the tubing or box is light-tight (black) on the inside, the diffraction slit is as thin as possible, and the receiver (web cam) in this case is positioned at an angle to the path of the incoming light. With that information and a little bit of self-experimentation, I’m sure people could actually develop their own colorimeters and so on. I’m seriously considering using this approach to spectroscopy as one part of a STEM lesson set for the junior high school students and seniors also who I teach here in Japan. Thank you for the effort and never mind the naysayers. Good job.

[@tabrezsalmani9869]

💕 (m hs

[@AbhishekYadav-ce4fc]

What software did u use???? Plz tell us

[@sitihajarabdrazak7154]

may i know the name of the software you use to analyze the spectrum

[@tom3and3jerry5]

kzbin.info/www/bejne/g5jSmKqZjbp8pcU check the software here

[@Patnaikfamily01]

e

[@user-nm2db9wu2m]

PLEASE DOES ANYONE KNOW A PROGRAMM I CAN USE AS A SPECTRAL ANALYZER IVE BEEN LOOKING FOR SO LONG

[@jafinch78]

Cool, I've been wanting to make a Michelson Interferometer or maybe even a simple Dispersive diffraction grating spectrometer system using a hard drive actuator. Probably with just a webcam with the hot lens off for a wider range spectra. Was thinking can be more accurate for scanning.

[@적연-f8y]

Thank you. How can I get a program that is used for computer analysis?

[@pikubose7706]

How to get absorbance -wavelength curve for a cuvette

[@kingjames-fn8ib]

what program downloadable for windows 8 that goes with?

[@pikubose7706]

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?

[@kyuliette04]

Great help for our lab project! Thank you!

[@GemPassionpl]

what is the program you are using in the movie ?

[@vysakhak191]

I'll try making this! thank you!

[@halfabee]

Will you pick up the UV spectrum?

[@algharibe]

you must remove the IR filter from the usb webcam to have an entrance for the IR to spectrometre

[@pikubose7706]

How to select wavelength for this caase? for example 400-700nm for analytical analysis of chemical solution or dye /

[@ribkahelindra8720]

Did anyone know what apps that he using is on his laptop?

[@adri6596]

I would like to build this myself, I have a few questions: does it have to be an empty CD disk? also, why an angle of the camera is important? some videos suggest 30 degrees angle

[@vnarayan18]

I ts imoirtant because, at that angle, the light is diffracting into bands of wavelengths and the camera must pick that up

[@adri6596]

@@vnarayan18 thanks

[@irenearora8635]

Hello, I have a question about where I can find that type of webcam?

[@ali76material]

you can connect the camera directly to the website

[@kaustavkapil1407]

I am willing to make such a instrument too. Can you please tell me what is the software you are using for analysis and how are you feeding the video to the software simultaneously?

[@nicoleskinner2430]

what software are you using?

[@footballCartoon91]

Thanks for the video I guess i need that red colour splitter because i am interested to detect metal I heard that near infra red technology is useful to differentiate metal elements

[@whatelseison8970]

You'll need to remove the IR filter from your camera to analyze that part of the spectrum.

[@ALEJANDROMTZMTZ]

Great job, does it works for UV?

[@The-One-and-Only100]

Any other diy scientific instruments to make in an afternoon

[@Thirty-Thirty_30-30]

Realy nice, but which programm you use for? For me as a German guy, your speach is a littel to fast. I have to watch it more than one times.

[@Carlos-be1db]

Hello good afternoon. What is the software you use? Where can I download it?

[@alanday5255]

It looks like spectralworkbench spectralworkbench.org/capture

[@alanday5255]

It looks like spectralworkbench.org/

[@leptonsoup337]

I´ve been using a program called Thermemino.

[@omsingharjit]

It's web based

[@Scyth3934]

@@omsingharjit and what is it called

[@danielkosciuszko9788]

this guy is the real deal!

[@dsfs17987]

for undergrad this was really low density presentation, where 90% was hand waving

[@pikkuland]

Why not using a cellphone camera?

[@JulioMartinez-hy2mu]

Cool!!! And simple, good job!

[@danalaniz7314]

Thank you so much! This is great and helpful video.

[@Carlos-be1db]

.... muy buen vídeo, saludos desde México.....

[@purplefurture6960]

what is the description of system

[@atchutarao5961]

can we measure absorbance of solutions at uv range ???

[@vovanikotin]

Google teremino spectroscope

[@suyashkumar6916]

Cn anyone tell me how cn i add cuvette here to quantify solution concentration

[@suryanshtagore7180]

i completed the build a few day's ago...cuvette sits Wright after the cardboard slit. you also need to fix the positions of LED, cardboard slit, and Cuvette holder. because slightest difference in placement of those 3 results major difference in readings. using transparency sheets is a bad idea too as their refractive Index makes the reading fluctuate. use different coloured LED they come in all Wavelengths including IR. Lastly you need to calibrate the system with something like a red/green laser pointer. if you want to get scientifically significant data you need to do all above. otherwise is only good for toying.

[@swasthimaharaj9354]

What software did you use?@@suryanshtagore7180

[@shorouqalkhatteb4397]

you used the webcam as a receiver

[@justtim9767]

VSH ?

[@dumrisupab3453]

Good project

[@MikkoRantalainen]

You could also just tape a piece of DVD over your laptop camera and create a 45 degree rotated blackbox out of cardboard with a narrow slit.

[@jayblack8691]

Where's the test tube insert. What's the point of this without analyzing chemicals

[@jamaticon]

Good video, but lighting could have been better.

[@whatelseison8970]

You should wash any of the purple dye left on the piece of DVD with a bit of alcohol or acetone.

[@drdefecation]

don't use acetone, it dissolves polycarbonate (CD plastic)

[@whatelseison8970]

@@drdefecation Haha, true enough! I actually found that out. My bad. Incidentally, so do chlorinated solvents, but then it's unlikely that anyone but me would even try that. haha. Run of the mills 62% ethanol hand sanitizer works perfectly ime and that's something folks probably do have.

[@marioavila4997]

Shows video about light ***proceeds to have no lighting

[@Аналитика365]

Спектроскоп. Не Спектрометр🙃🐛

[@edinfific2576]

Aside from too much camera movement and too much animated acting on the speaker's part, this is a great video. You could have raised the volume of his speech a little bit as well.

[@dustinsmith8341]

Who the hell even has vhs containers anymore?

[@wernerhiemer406]

I tryed hard do understand what he said. I barely heard blu-ray container. But only by the explaining of the entrance cutting I knew it is some plastic thingy.

[@michaelhogan738]

Oh man! Misspelling in the opening screen! "HOW TO BUILD A LOW-COST SPECTOMETER". Way to build credibility!

[@marsaspen-murray3797]

What's with the f-ing music? Dumb, dumb, dumb. Loud, too.