US Patent No. 9,389,110

MEASUREMENT APPARATUS FOR MEASURING THE THROUGHFLOW OF A FLUID


Patent No. 9,389,110
Issue Date July 12, 2016
Title Measurement Apparatus For Measuring The Throughflow Of A Fluid
Inventorship Burghardt Schaefer, Mutterstadt (DE)
Tuan Chu Anh, Ludwigshafen (DE)
Assignee Sensus Spectrum LLC, Raleigh, NC (US)

Claim of US Patent No. 9,389,110

1. A measurement apparatus comprising:
a measuring tube having an inlet and an outlet;
a thermal sensor for measuring a flow rate of a fluid flowing through the measuring tube, the thermal sensor being arranged
in a measurement section of the measuring tube; and

an inner tube having an inner tube inlet, an inner tube outlet, and an inner tube measurement section, the inner tube arranged
in the measuring tube,

wherein the inlet has an inlet inside diameter and the measurement section has a measurement section inside diameter, the
measurement section inside diameter being greater than the inlet inside diameter,

wherein the inner tube measurement section has an inside diameter that is greater than an inside diameter of the inner tube
inlet,

wherein the thermal sensor is arranged at the inner tube,
wherein the inside diameter of the inner tube increases steadily from the inner tube inlet towards the inner tube measurement
section and tapers steadily from the inner tube measurement section towards the inner tube outlet, and

wherein the sensor is arranged at the inside wall of the inner tube in a region of the measurement section.