TCD1304-based spectrometer

TCD1304-based spectrometer - Part 1

День тому

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In this video, I show you my TCD1304-based spectrometer. This is just a prototype, but it is a good starting point to see how to develop this project further. I built a driving circuit for the TCD1304 using my custom PCB, then I measured two lasers and used them for calibrating the CCD. Then, I measured the spectra of different LEDs.
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КОМЕНТАРІ: 40

@7alfatech860 Рік тому

Great idea putting the SMD components on the back side. Nice video, as always

@CuriousScientist Рік тому

Thank you! Yes, I tried to squeeze everything as close as possible to the CCD to avoid any unnecessarily long traces. I think, if I would use both sides of the board, I could also add an STM32 microcontroller to drive and read the CCD. However, in this chip shortage, I cannot play around with that option. :)

@Yorumcu63 8 місяців тому

Great video Thank you for project

@CuriousScientist 8 місяців тому

You're welcome! Cheers!

@CoDBuffett Рік тому

Awesome, I’ve been having trouble on wiring up the CCD and getting a OS signal on oscilloscope via breadboard design

@CuriousScientist Рік тому

I hope my explanation helped you to solve your problems.

@CoDBuffett Рік тому

I think the CCD could be fried because I get a SH, IcG and master clock pulse going in just nothing coming out of the CCD

@CuriousScientist Рік тому

Or just wrong signals. I gave quite a challenge to these CCDs and I haven't fried any of them yet.

@beamarge9803 Рік тому

It is a great work. I enjoyed vey much. Have you compared the results with commercial spectrometers? How is the noise level compared to other spectrometers?

@CuriousScientist Рік тому

Thanks! I haven't yet tried it. I am now saving up some money so I can buy different lasers to properly calibrate the sensor. Then, I will try to replicate some measurements in the UV-VIS region and compare it with others' results. But unfortunately this will be a lengthy process.

@connerphillips1228 Рік тому

Amazing work. Thanks for making the video around it to boot. I have some questions about the bench. First, what material is it? It looks like a machined plastic to me. Delrin maybe? Second, could you elaborate on the alignment components? Are they off-the-shelf or also custom made?

@CuriousScientist Рік тому

Thanks! The bench is a refurbished B&W TEK BRC100 spectrometer, you can find them on eBay. The casing is metal. All the optical components are "off-the-shelf". My contribution is the customized PCB that fits the enclosure and the software I developed for the MCU and for the computer.

@bluefishactcl1464 Рік тому

Excelent work !!!! Where did you get the optical components ?

@CuriousScientist Рік тому

Thank you! I found them on Ebay.

@ifzq0 2 місяці тому

Great project 😍.But how can I buy or made the focusing mirror? Your onlinestore not offers that! 😪😪

@CuriousScientist 2 місяці тому

Hi and thanks! I also bought it from ebay. It can be found if you search for "optical bench b&w tek". Making the focusing mirror would be extremely difficult. It's not something we (at least I) can do at home.

@ifzq0 2 місяці тому

@@CuriousScientist thank you a lot 😃👍🏼

@KANKDINGcreations Рік тому

Great video! Always enjoy your projects. We are working on a Dielectric Barrier Discharge - Optical Emission Spectrometric detector (DBD-OES) as part of a government-funded academic project and have to build our own UV-vis CCD spectrometer for this purpose. Trying this configuration would be amazing and really add value to the work. Are you able to share the dimensions of the optical bench and the optic cable connector/type? Any information you can spare would be great, really. Many thanks and keep up the great work!!

@CuriousScientist Рік тому

Thank you very much! Please drop me an email, so I won't forget it and I can also attach pictures. Cheers!

@gtalckmin Рік тому

@@CuriousScientist I would also be interested on replicating your setup (obviously getting your PCB). Do you have a bill of materials you could share? Also, is the software on github? It would be great if it was open-souce. Cheers

@CuriousScientist Рік тому

I don't know if you have checked the page of PCBWay where I shared the PCB, but I made a list of components, basically a BOM and shared it there. I hope that's sufficient. The software is not available for the public, however I made a very detailed video and wrote a long article which you can follow in order to write the code yourself.

@gtalckmin Рік тому

@@CuriousScientist Thanks for the reply. I am aware of the the PCB+electronic components, but I would also be keen to purchase the optics: grating etc. I assume you got those from Edmund Optics. Thanks, Gustavo

@CuriousScientist Рік тому

You're welcome! The optics is from eBay. Search for "optical bench" or "optical banch" (yes, with the typo). It is an old B&W Tek spectrometer without the CCD. I designed my PCB to exactly fit this type of instrument.

@NFL_31258 2 місяці тому

Is the PCB link above in your description already has the foxes, or we will need wires to do fixes?

@CuriousScientist 2 місяці тому

What do you mean by "foxes"? If you buy the PCB, you get the PCB only, without the components. However, I think you can order the PCB with assembly, then in that case, you get it with the components. But you will still need to get and program the STM32F401 microcontroller yourself.

@morningstarsci 9 місяців тому

Where did you get the "optical bench"?

@CuriousScientist 9 місяців тому

It is from ebay.

@pmcquay1 2 місяці тому

Is there a place that you've posted the design files for this? Also the firmware and client software? I want to use this to make a planar laser based precision height measuring tool, but given what I can find its going to be difficult to assemble this with no documentation. I found your wordpress with the (extremely detailed) firmware building instructions, so that part is not as necessary, but I was a little confused to not find a github link somewhere. Im thinking I missed something.

@CuriousScientist 2 місяці тому

Hi! No, the software are not available publicly. Sorry!

@pmcquay1 2 місяці тому

@@CuriousScientist would you at least point us towards a listing of what values of component go where on the board? I can likely figure out the rest. Firmware can be assembled from your article. It would be good to have the basic test software, but if everything else works it shouldnt be that difficult to put something together.

@CuriousScientist 2 місяці тому

All the components are listed on the corresponding PCBWay project page. I created a BOM for it.

@pmcquay1 Місяць тому

@@CuriousScientist I did find that, but there is nothing to indicate there that those components are listed in the order that they appear on the board, but it makes sense that way. Appreciate the help. If I end up with a basic client implementation I'll put together a github with the code and link your stuff.

@CuriousScientist Місяць тому

Sorry, but that is simply untrue. I uploaded an interactive BOM that does not only list the components by their ID such as R1, C1...etc, but it also highlights a selected list item on the schematics of the PCB.