Patent ID: 9040303
Filing Date: 2015-05-26
Classification: B01L,G01L,G01N,Y10T

Abstract:
1. An apparatus for measuring volume of a fluid, comprising: at least one emitter configured to project a signal toward a predetermined position of a sample container, wherein the at least one emitter resides adjacent a side of the sample container and is configured to project a respective signal across the sample container; at least one receiver configured to receive the signal after the signal interacts with the sample container, wherein the at least one receiver resides below the at least one emitter and under the sample container, and wherein a change in the signal received by the receiver indicates when the fluid has dropped below the predetermined position; and a fluid transfer device in communication with the receiver and sample container, wherein the apparatus determines a volume of fluid that the fluid transfer device has removed from the sample container when the at least one receiver detects that the fluid has dropped below the predetermined position.