Influence wood ageing (chips) on ABV

[Odin]

Hi there mentors,

I have a question, but cannot find the answer with the search function. Hope the mentors can help. My question is: how (if at all) does ageing on wood chips influence an ABV measurement? I am not talking about whiskey in a cask, angels share, etc. I am thinking in the following line ... When I put my ABV meter in a wash that is almost finished, it does not give an acurate reading. Especially sugars throw the reading on any alcohol content off. Now if I mature UJSSM on wood chips, especially Jack Daniels, there should be wood sugars left in there. Do those sugars "travel" over into the booz and can they make for an off reading with ABV again? I just measured my UJSSM that is on wood now for 3 weeks allmost. It went in at 60%. Now I get a reading of around 55%. A have a cap on top, so evaporation should be close to nill. Same seems to happen to my gin. Put in on oak a week and a half ago at 50%, now I read 45%. I took a measurement on the booz without filtering the wood or wood particles out, I must say. And temperatures are the same as one or two weeks ago ...

Any thoughts?

Odin.