US Patent No. 9,748,818

METHOD AND DEVICE FOR SUPPLYING A MEASUREMENT ELECTRONICS SYSTEM WITH ELECTRICAL ENERGY


Patent No. 9,748,818
Issue Date August 29, 2017
Title Method And Device For Supplying A Measurement Electronics System With Electrical Energy
Inventorship Burghard Schaefer, Mutterstadt (DE)
Volker Keller, Speyer (DE)
Tuan Chu Anh, Ludwigshafen (DE)
Assignee Sensus Spectrum LLC, Raleigh, NC (US)

Claim of US Patent No. 9,748,818

1. A method for supplying a fluid flow rate electronic measuring system in a fitting on a pipe section, through which a fluid
flows, with electric power, wherein a flow rate of the fluid flowing through the fitting fluctuates, via a power generating
device, the method comprising:
arranging a generator having a turbine in the pipe section through which the fluid flows, the generator and the fitting being
arranged in series, and the generator generating electric power to supply the electronic measuring system, so that the electronic
measuring system in the fitting has electric power to measure the flow rate of the fluid;

providing a control device; and
providing at least one element for influencing the fluid flow through the power generating device,
wherein the turbine of the generator generates electric power starting at a predetermined minimum flow rate of the fluid through
the fitting,

wherein a pressure loss of the fluid that the fluid experiences in the power generating device is determined by measuring
pressure at a position upstream of both the generator and the fitting and at a position downstream of both the generator and
the fitting, and

wherein the control device, depending on the determined pressure loss and/or the flow rate measured by the electronic measuring
system in the fitting, controls the at least one element for influencing the fluid flow so that the pressure loss that the
fluid in the power generating device experiences does not exceed a predetermined value.