Patent ID: 7013703

Claim:
A system for evaluating or calibrating a bubble detector, comprising: a conduit adapted to pass a flow material therethrough, wherein the conduit is configured for passing flow materials of different viscosities; a pump operatively coupled to the conduit to pump the flow material through the conduit; a bubble-forming device operatively coupled to the conduit, the bubble-forming device being adapted to introduce bubbles into the flow material passing through the conduit; and a bubble detector to be evaluated positioned to examine the bubbles in the flow material passing through the conduit, wherein the bubble-forming device comprises: a connecting device operatively coupled to the conduit; a bubble-forming capillary adapted to be positioned within the connecting device in communication with the flow material passing through the conduit; and a bubble-pumping device operatively coupled to the bubble-forming capillary, the bubble-pumping device adapted to deliver a bubble-forming material to the flow material in the conduit through the bubble-forming capillary to create bubbles in the flow material, wherein the capillary comprises: a proximal portion operatively coupled to the bubble-pumping device and a distal portion slidably positioned within the connecting device.