Sensors

How about a hypodermic needle and a refractometer?

Dear Confrater,

I guess you are at the start phase of a program. You have to do some research on your products and create quality control standards. A method for the sweetness could be a conductivity test with a calibrated tool with 2 needles to penetrate the meat to a reference depth. The fructose content can be a sweetness indicator. Expect to experience variations on various types. Some empiric approach and statistics will come handy.

You can use sewing needles, made of stainless steel, wired to a measuring device.

This is a minimal invasive system.

Depending on the climate there you could also use the tiny sugar ants. They are cheap intelligent co workers with a incredible sense for sweetness. Once you have studied their behavior, they can give you a good indication of the fruit quality by the way they are longing to visit it. I am dead serious about it. These are completely harmless and almost invisible.

Personally I have experience also with black ants. They are the best barometer on earth to predict rain and storm, and never have failed to predict a coming hurricane within a 2 day lap.

I also have red fire ants, but they only bite me and as European, it took me a few months to get anti- dote build up in my system.

I have more ideas with somewhat more complicated set ups, but do not post these here. Some people here might think I make fun.

You don't give much inFormation. So I'll assume. They have color sorters with fruit already picked that can sort these.

And looking you must have posted this in several areas ..... :/

I really doubt that you're trying to develop a sensor. If you were then you would already know how others accomplish this fundamental step in food harvesting. You would already be aware that fruit ripening is a well studied chemical reaction that in many fruits can be controlled by temperature and environmental controls. The out-gasses of the fruit both regulates the ripening rates and produce tell tale chemicals in the air as they ripen. Color sorting for some species of fruit can aid but this step more often comes after controlled batch ripening is performed.

I'm not surprised that you did not read the fundamentals of ripening fruit. You did not read this CR4 FAQ:

• Do not post the same thread multiple times. The CR4 moderation team will delete all but the most appropriate instance, and may delete them all if sufficiently annoyed.