Systems and methods for sweat rate determination

A system (300) for determining per gland sweat rate and measuring biomarker concentration is provided. The system includes a device and a sensor (166). The device receives sweat from the skin and delivers the sweat to the sensor in discrete sweat droplets. The sensor senses each of the counted sweat droplets. The system also includes a processor that counts the number of sweat droplets sensed over a period of time. The processor also determines a time interval between successively sensed sweat droplets and receives a measure of a volume of each of the counted sweat droplets. The measurements of time intervals and volumes are then used by a processor to identify sweat outbreak and rest periods for one or more sweat glands that produce sweat. The identification process necessarily involves assigning sweat outbreak and rest periods to the one or more sweat glands such that a processor is allowed to determine the number of sweat glands involved in producing sweat. A per gland sweat rate may then be determined bas