公开(公告)号：US11879760B2

公开(公告)日：2024-01-23

申请号：US17265291

申请日：2018-08-13

Applicant: MICRO MOTION, INC.

Inventor： Craig B. McAnally ,  Bert J. Downing

IPC: G06F11/30 ,  G01F1/84 ,  G01H11/00 ,  G01M99/00

CPC classification number: G01F1/8436 ,  G01H11/00 ,  G01M99/005

Abstract: A meter electronics (20) for determining a decay characteristic of a meter assembly (10) of a flow meter (5) is provided. The meter electronics (20) includes an interface (201) for receiving a vibrational response from a meter assembly (10), the vibrational response comprising a response to an excitation of the meter assembly (10) at a substantially resonant frequency, and a processing system (203) in communication with the interface (201). The processing system (203) is configured to receive the vibrational response from the interface (201), determine a response voltage (V) of the vibrational response, determine a decay characteristic (ζ) of the meter assembly (10) based on the response voltage (V), and compensate the decay characteristic (ζ) by using a previously determined decay characteristic-to-response voltage relationship.

公开(公告)号：US11852516B2

公开(公告)日：2023-12-26

申请号：US17264458

申请日：2018-08-13

Applicant: MICRO MOTION, INC.

Inventor： Craig B. McAnally ,  Bert J. Downing

IPC: G01F1/84 ,  G01F25/10

CPC classification number: G01F1/8436 ,  G01F25/10

Abstract: A method (300) for determining when to verify a stiffness coefficient K (202, 204) in a flowmeter (5) comprising receiving a first stiffness coefficient K (202), a plurality of temperatures T (206), a plurality of response frequencies ω (208), and a plurality of driver currents I (210), determining an average temperature T (212), a standard deviation temperature T (214), an average response frequency ω (216), a standard deviation response frequency ω (218), an average driver current I (224), and a standard deviation driver current I (226). A first subsequent value (236) comprising a subsequent temperature T (228), a subsequent response frequency ω (230), or a subsequent driver current I (232) is received. Upon determining that the first subsequent value (236) is outside a first respective range (237), a determination of a second stiffness coefficient K (204) is initiated.

公开(公告)号：US11821779B2

公开(公告)日：2023-11-21

申请号：US17260311

申请日：2018-07-30

Applicant: MICRO MOTION, INC.

Inventor： Bert J. Downing

IPC: G01F25/10 ,  G01F1/84 ,  G01F15/02 ,  G01N9/00

CPC classification number: G01F25/10 ,  G01F1/8477 ,  G01F15/022 ,  G01N9/002 ,  G01N2009/006

Abstract: A method for verifying accurate operation for a flow meter (5) is provided. The method entails receiving a vibrational response from the flow meter (5), wherein the vibrational response comprises a response to a vibration of the flow meter (5) at a substantially resonant frequency. At least one gain decay variable is measured. It is then determined whether the gain decay variable is outside a predetermined range. A filter used in a stiffness calculation is adjusted if the gain decay variable is outside the predetermined range. The ability to detect and/or quantify any changes to the stiffness of the meter assembly in order to maintain a high level of accuracy is an improvement in the field of flow meters.

公开(公告)号：US12181326B2

公开(公告)日：2024-12-31

申请号：US17265891

申请日：2018-08-13

Applicant: MICRO MOTION, INC.

Inventor： Craig B. McAnally ,  Bert J. Downing

IPC: G01F25/10 ,  G01F1/84

Abstract: A meter electronics (20) for detecting a change in a vibratory meter (5) based on two or more baseline meter verifications is provided. The meter electronics (20) comprises an interface (201) configured to receive sensor signals (100) from a meter assembly (10) and provide information based on the sensor signals (100), and a processing system (202) communicatively coupled to the interface (201), said processing system (202) being configured to use the information to determine a first baseline meter verification value at a first set of process conditions, determine a second baseline meter verification value at a second set of process conditions, and determine a baseline meter verification value based on the first baseline meter verification value and the second baseline meter verification value.

公开(公告)号：US12169139B2

公开(公告)日：2024-12-17

申请号：US17265631

申请日：2018-08-13

Applicant: MICRO MOTION, INC.

Inventor： Craig B. McAnally ,  Bert J. Downing

IPC: G01F1/84

Abstract: A meter electronics (20) for determining a damping of a meter assembly (10) of a flow meter (5) is provided. The meter electronics (20) includes an interface (201) for receiving a vibrational response from a meter assembly (10), the vibrational response comprising a response to an excitation of the meter assembly (10) at a substantially resonant frequency, and a processing system (203) in communication with the interface (201). The processing system (203) is configured to receive the vibrational response from the interface (201) and measure a plurality of response voltages (V) of the vibrational response, the plurality of response voltages (V) including at least one of one or more decay sections (430a, 530a-530f) and one or more rising sections (430b, 630a-630f). The processing system (203) is also configured to determine an aggregate damping-related value of the meter assembly (10) based on at least one of the one or more decay sections (430a, 530a-530f) and the one or more rising sections (430b, 630a-630f).