Optical Concentration Sensor for Liquid Solution

Innovators at the NASA Kennedy Space Center have developed a new optical sensor for measuring concentration in a liquid solution. The sensor was designed for measuring the pretreat solution concentration within the Universal Waste Management System (UWMS), a specialized toilet designed for the International Space Station (ISS) and other future missions. The sensor was developed to replace the current pretreat concentration sensor within the UWMS that uses electrical conductivity instead of light-based methods.