NANO FLOW SENSORS

A flow meter comprises a capillary, a first and second fluid flow marker, and one or more sensors. The capillary has a longitudinally extending fluid receiving space, with a first end and a second end. The first and second fluid flow markers are immiscible and are positioned in the fluid receiving space. The one or more sensors are positioned along the capillary. A method for measuring flow rates comprises the steps of introducing a first liquid into a flow meter. That first liquid flows into the fluid receiving space at the first end of the capillary thereby displacing the first fluid flow marker and the second fluid flow marker towards the second end of the capillary. The interface between the first fluid flow marker and the second fluid flow marker is measured with one or more sensors to determine the flow rate of the first liquid. 一种流量计包括毛细管、第一流体流量标记物和第二流体流量标记物以及一个或多个传感器。毛细管具有带有第一端和第二端的纵向延伸的流体接收空间。第一流体流量标记物和第二流体流量标记物是不混溶的，并且被定位在流体接收空间中。一个或多个传感器沿着毛细管定位。一种用于测量流率的方法包括将第一液体引入到流量计中的步骤。该第一液体流入到毛细管的第一端处的流体接收空间中，