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Question:Intensity for spectra too low?

chuynh451 is asking a question about spectrometer: Subscribe to answer questions on this topic

chuynh451 asked on November 01, 2016 20:21
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I am a new user trying to make use of the mini-foldable spectrometer with my phone. The images I get have very bright lines and yet the intensity is labeled as 7% or lower. How do I get the intensity up?



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3 Comments

warren 11 months ago

Can you link to your spectra so I can see?

chuynh451 11 months ago

Here is my latest try: https://spectralworkbench.org/spectrums/89850

larsonreever 8 months ago

You'll need to ensure all your data has the same cross-section if you want to compare it or use this calibration for other readings.

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1 Answers

Thanks for sharing the link. Because you're using an uploaded image, the top row of pixels is quite dark, and that's the one used as your cross-section line.

I tried forking your spectrum and selecting a new cross-section: https://spectralworkbench.org/spectrums/89900

That looks much better and makes a good calibration. But note that since your spectrum is curved, the choice of cross-section will shift your calibration left or right depending on what height it is. You'll need to ensure all your data has the same cross-section if you want to compare it or use this calibration for other readings.

Hope that helps!


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