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Micro-fluidic dead-end channel structure for pressure measurement within a fluid channel on the basis of the change of the volume of a trapped gas bubble
专利权人:
发明人:
Andreas Geipel
申请号:
US13757995
公开号:
US08943894B2
申请日:
2013.02.04
申请国别(地区):
US
年份:
2015
代理人:
摘要:
A device for detecting pressure and/or temperature changes in a fluid-channel and method thereof are disclosed. The device includes a main duct with an inlet and an outlet, a branch ductwork with a first branch end branching off the main duct downwards the inlet and with a second branch end discharging into the main duct upwards the outlet, and at least one dead-end channel with a first end that branches off the branch ductwork and a second closed end. The dead-end channel is adapted to trap a gas bubble within the dead-end channel when the device is primed or filled with a liquid fluid, wherein the gas bubble changes its size or position if a change in pressure or temperature occurs in the device.
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