Patent ID: 7877888

Claim:
An apparatus for measuring one or more installation dimensions of a predetermined section of a non-circular pipe configured to accommodate a flow measurement system, the apparatus comprising: a first device configured to be detachably coupled to a plurality of positions measured circumferentially from a datum point along an outer peripheral surface of the predetermined section of the pipe and configured to measure a radius of curvature at each of the plurality of positions of the outer peripheral surface of the predetermined section of the pipe; a second device configured to be detachably coupled to the plurality of positions along the outer peripheral surface of the predetermined section of the pipe and configured to measure a wall thickness along the plurality of positions of the outer peripheral surface of the predetermined section of the pipe; and a processor configured to receive measurement data comprising the radius of curvature and wall thickness along the plurality of positions of the outer peripheral surface of the predetermined section of the pipe, wherein the processor is configured to determine a cross-sectional area of the predetermined section of the pipe based on the measurement data.