Mysteriously Faulting Stepper Motor, Closed-loop @kentvandervelden

Uploaded November 2016 | Updated September 2026, 10 hours ago

The cause of an occasionally faulting closed-loop stepper motor is identified and repaired. I hope this short video will help others to avoid the same problem. The problem was inconsistent but after a Haimer problem was crushed, had to be solved. (All Haimer probes are doing well today.)

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Mysteriously Faulting Stepper Motor, Closed-loop

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$Spectrometer Introduction, Tear-down, and Data Analysis for Plant Phenotyping Spectrometers decompose light into a rainbow of colors and then measure each color accurately. In this video I tear-down a spectrometer, describe the theory, and use of a spectrometer. A recent leaf clip spectrometer is used to for a plant phenotyping application to predict tree lead species. Channel Love: Likes are free. https://paypal.me/KentVanderVelden Business Inquiries, Im a freelance scientific programmer: kent@confluencerd.com Finally, I demo software that Ive written for storing, organizing, analyzing (using PLS-DA), and reporting spectra. If you need help with a plant phenotyping project, let me know, I may be able to help your project. The geranium drought experiment is not fully described due to time. Theres additional background information thats needed for understand water absorption spectra. The device used in the video is not ideal for a drought application and so the results are not clear. Let me know if you would more details. The spectrometer that is tore-down is from Ocean Optics. The leaf spectrometer is from CID Bioscience. A Microsoft Surface tablet is used to power the spectrometer and collect data. CID CI-710 Leaf Spectrometer: https://www.cid-inc.com/plant-science-tools/leaf-spectroscopy/ci-710-miniature-leaf-spectrometer/ Ocean Optics USB4000: https://oceanoptics.com/product/usb4000-custom/ PLS-DA paper (So you think you can PLS-DA, Ruiz-Perez and Narasimhan): https://www.biorxiv.org/content/biorxiv/early/2017/10/21/207225.full.pdf Other PLS resources: Properties of Partial Least Squares (PLS) Regression, and differences between Algorithms: http://www.eigenvector.com/Docs/Wise_pls_properties.pdf A survey of Partial Least Squares (PLS) Methods, with Emphasis on the Two-Block Case: https://www.stat.washington.edu/research/reports/2000/tr371.pdf Diffraction grating explanation: https://www.youtube.com/watch?v=F6dZjuw1KUo https://www.youtube.com/watch?v=U02-O5Z9E6Y #KvvCreates, #Science, #Spectroscopy$

GAN (Generative Adversarial Network) Progression

Kent VanderVelden |

Mysteriously Faulting Stepper Motor, Closed-loop