Ppm clone

pyppm-clone

This project is a modern update of https://github.com/geekysuavo/pyppm.

All design credits go to geekysuavo.

see kicad/ppm-clone.pdf for schematic

Changes

This project implements pyppm ver 2.2 in KiCAD 10.0 instead of gEDA.

• The CTX02-13665 and LT3439 have been replaced with a Wurth 78931812512 and TI SN6505BDBV due to the CTX02 becoming obsoleted

Notes

No changes so far. Any parts changes will be performed in separate branches.

Project Goals

I would like to measure olive oil purity.

• [] Check over schematic, simulate it in kicad/whatever spice it comes with
• [] Order a board, assemble it
• [] Get firmware compiled and running
• [] do some math

FID vs FDM for olive oil?

• olive oil NMR spectra has a lot of overlapping signals due to a lot of different types of triglycerides, fatty acid chains
• could probably use FID for now, and figure out FDM later?
• pyppm performance should be quantified first

Papers

• A New Method for Olive Oil Screening Using Multivariate Analysis of Proton NMR Spectra, Colleen L Ray, James A Gawenis, C Michael Greenlief - https://doi.org/10.3390/molecules27010213
• Olive oil as seen by NMR and chemometrics, Luisa Mannina, Anatoli P. Sobolevb, Annalaura Segreb - https://www.spectroscopyeurope.com/system/files/pdf/NMR_15_3.pdf
• Nuclear magnetic resonance spectroscopy in extra virgin olive oil authentication, Valentina Maestrello, Pavel Solovyev, Luana Bontempo, Luisa Mannina, Federica Camin, 10.1111/1541-4337.13005
• Detection of olive oil adulteration by low-field NMR relaxometry and UV-Vis spectroscopy upon mixing olive oil with various edible oils, Ok, S - 10.3989/gya.0678161
• NMR-based metabolomic approach to estimate chemical and sensorial profiles of olive oil, Gaia Meoni et al, https://doi.org/10.1016/j.csbj.2025.03.045
• NMR Analysis of Extra Virgin Olive Oil of the Epirus Region of Greece with Emphasis on Selected Phenolic Compounds, Theodoros Tsolis et al., https://doi.org/10.3390/molecules29051111