公开(公告)号：US12038317B2

公开(公告)日：2024-07-16

申请号：US17883797

申请日：2022-08-09

Applicant: Micro Motion, Inc.

Inventor： Timothy J. Cunningham ,  David J. Kapolnek ,  Matthew J. Rensing ,  Christopher George Larsen

IPC: G01F25/10 ,  G01F1/84

CPC classification number: G01F25/10 ,  G01F1/84 ,  G01F1/8436

Abstract: A vibratory flowmeter (5) for meter verification is provided, including meter electronics (20) coupled to the first and second pickoff sensors (170L, 170R) and coupled to a driver (180), with the meter electronics (20) configured to: vibrate the flowmeter assembly (10) in a single mode using the driver (180), determine a single mode current (230) of the driver (180) and determine first and second response voltages (231) generated by the first and second pickoff sensors (170L, 170R), respectively, compute frequency response functions for the determined first and second response voltages (231) from the determined single mode current (230), fit the generated frequency response functions to a pole-residue model, and verify proper operation of the vibratory flowmeter (5) using the meter stiffness value (216), residual flexibility (218), and the meter mass (240) in embodiments.

公开(公告)号：US20220390267A1

公开(公告)日：2022-12-08

申请号：US17883797

申请日：2022-08-09

Applicant: Micro Motion, Inc.

Inventor： Timothy J. Cunningham ,  David J. Kapolnek ,  Matthew J. Rensing ,  Christopher George Larsen

IPC: G01F25/10 ,  G01F1/84

Abstract: A vibratory flowmeter (5) for meter verification is provided, including meter electronics (20) coupled to the first and second pickoff sensors (170L, 170R) and coupled to a driver (180), with the meter electronics (20) configured to: vibrate the flowmeter assembly (10) in a single mode using the driver (180), determine a single mode current (230) of the driver (180) and determine first and second response voltages (231) generated by the first and second pickoff sensors (170L, 170R), respectively, compute frequency response functions for the determined first and second response voltages (231) from the determined single mode current (230), fit the generated frequency response functions to a pole-residue model, and verify proper operation of the vibratory flowmeter (5) using the meter stiffness value (216), residual flexibility (218), and the meter mass (240) in embodiments.

公开(公告)号：US20210080312A1

公开(公告)日：2021-03-18

申请号：US17106844

申请日：2020-11-30

Applicant: Micro Motion, Inc.

Inventor： Timothy J. Cunningham ,  David J. Kapolnek ,  Matthew J. Rensing ,  Christopher George Larsen

IPC: G01F25/00 ,  G01F1/84

Abstract: A vibratory flowmeter (5) for meter verification is provided, including meter electronics (20) coupled to the first and second pickoff sensors (170L, 170R) and coupled to a driver (180), with the meter electronics (20) configured to: vibrate the flowmeter assembly (10) in a single mode using the driver (180), determine a single mode current (230) of the driver (180) and determine first and second response voltages (231) generated by the first and second pickoff sensors (170L, 170R), respectively, compute frequency response functions for the determined first and second response voltages (231) from the determined single mode current (230), fit the generated frequency response functions to a pole-residue model, and verify proper operation of the vibratory flowmeter (5) using the meter stiffness value (216), residual flexibility (218), and the meter mass (240) in embodiments.