Recent content by Larsoo

Hi, can anyone explain to me why wavelength is a limiting factor in determining whether a radio wave will pass through an object, a wall for example? Thank! L

Thanks guys for your inputs. All food for thought. I'm going to have a think about it and see how best to approach it. I'm not completely off the speed of sound idea either, just need to figure out which is most likely to work for me. Thanks L

The programming doesn't bother me. However, I can't see the speed of sound approach working as the liquid is a lot more than just ethanol and water. Dependant on reipe/process there will be varying amounts of unfermentable sugars, proteins, break material and yeast in suspension. Measuring...

Sophiecentaur, you have me interested. However, my background is electronics rather than physics. Could you elaborate a little on the type of sensors/transducers would be used to achive that. Also, I'm not familiar with what a standing wave is. I wonder is the solution homogenous enough for a...

Thanks MFB, its important that I have as little as possible under the liquid as it must be in food grade enclosures. I thought it would be simple to have, maybe a ball pushing a rod upwards through a pipe. Also, it being a wet environment everything will need to be enclosed anyway. Also, I...

Thanks for the responses guys. During fermentation, a thick creamy yeast head forms on the surface of the liquid(called Wort, pre fermentation and Beer post fermentation) so its difficult to measure anything from the surface. Also, the liquid gives off CO2 as the fermentation occurs in varying...

Hi, I brew beer and part of the process is measuring the specific gravity of the fermenting liquid. This is done visually using a hydrometer. Digital hydrometers are available and very expensive. I'm trying to come up with a way to measure the liquid specific gravity electronically. Typical...