Method, apparatus and computer medium for correcting transient flow errors in flowmeter proving data
First Claim
1. An apparatus for increasing the accuracy of meter factors of a flow instrument in conjunction with a prover having upstream and downstream prover detection switches and a flow computer, the apparatus comprising a flow instrument having a time constant, and a computer program embodied on a computer readable medium for correcting errors in a meter factor of the flow instrument measured in a proving run produced by flow changes in a proving run.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for increasing the accuracy of meter factors of a flow instrument in conjunction with a prover having upstream and downstream prover detection switches and a flow computer including a computer program embodied on a computer readable medium for correcting errors in a meter factor of the flow instrument measured in a proving run and correcting effects of flow rate changes during proving. A computer program embodied on a computer readable medium whose contents causes a processor to increase the accuracy of meter factors of a flow instrument in conjunction with a prover having upstream and downstream prover detection switches and a flow computer. A method for increasing the accuracy of the meter factors of a flow instrument in conjunction with a prover having upstream and downstream prover detection switches and a flow computer.
7 Citations
25 Claims
- 1. An apparatus for increasing the accuracy of meter factors of a flow instrument in conjunction with a prover having upstream and downstream prover detection switches and a flow computer, the apparatus comprising a flow instrument having a time constant, and a computer program embodied on a computer readable medium for correcting errors in a meter factor of the flow instrument measured in a proving run produced by flow changes in a proving run.
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14. A computer program embodied on a computer readable medium whose contents causes a processor to increase accuracy of meter factors of a flow instrument in conjunction with a prover having upstream and downstream prover detection switches and a flow computer comprising the computer implemented steps of:
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receiving signals from the upstream and downstream prover detection switches and the flow instrument having a time constant; and correcting errors in a meter factor of the flow instrument measured in a proving run produced by flow changes in a proving run.
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15. A method for increasing accuracy of meter factors of a flow instrument in conjunction with a prover having upstream and downstream prover detection switches and a flow computer comprising the steps of:
activating a processor; and
correcting errors in a meter factor of a flow instrument having a time constant measured in a proving run produced by flow changes in a proving run by implementing a computer program in a processor.- View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
Specification