11 Sep 2024
Water Activity Meter Working Principle
Water activity meter is an instrument used to measure the water activity in samples. It is widely used in food, medicine, feed, chemical industry and other industries. This article will introduce the principle of water activity meter in detail from the aspects of water adsorption, infrared drying method, chemical method, vapor pressure method, refractive index method, coulometric method, thermogravimetric method, Raman spectroscopy, etc.
