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  • Reads temperature and relative humidity from two locations on the rack (DS22 sensors)
  • Provides 6 potentiometers - one for each bank - acting as dimmer controllers
  • Includes a display showing temperatures, humidity, lux and light percentages for each bank
  • AC voltage and amperage
  • Main power switch to PS’s
  • Air conditioning thermostat control
  • Records cumulative times for bottle exposure and lumens (question)

Preliminary results from the first set of measurements 

Illumination Experiment

These results include Principal components analysis on 512 bottles of newly bottled MTB2018 red wine. The bottles were measured with VeriVin prototype n.0 (Frankie) before any light exposure. The collected spectra were then used to build a PCA model. Out of 512 bottles tested, about 14% of the measured were discarded, as they did not present sufficient signal intensity or signal/noise ratio. The model shows clear separation of brown bottles and martial separation of transparent bottles. Green bottles are more scattered. This confirms that

  1. Brown borgoña bottles from this particular type and producers are relatively thin and transparent in the region between 1000nm and 1400nm. The glass thickness is also relatively uniform
  2. Transparent bottles have a less uniform thickness 
  3. green bottles also are relatively uneven, and generally thicker than brown ones

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The bottles were exposed to 24h of LED light (Red/green/Blue), 4 bottles per type were then tested again with Frankie. No divergence was observed. This result is compatible with different scenarios:

  1. 24h of exposure are not enough to see a sensible change
  2. LED light does not contain frequencies that affect the wine 
  3. Frankie is not Able to detect a difference

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Useful comparative analyses to keep track of changes:

UV-Vis spectroscopy in cuvette (absorption spectrum, 300-700nm for red wine)