US 12,169,139 B2
Determining a damping of a meter assembly
Craig B. McAnally, Thornton, CO (US); and Bert J. Downing, Longmont, CO (US)
Assigned to MICRO MOTION, INC., Boulder, CO (US)
Appl. No. 17/265,631
Filed by MICRO MOTION, INC., Boulder, CO (US)
PCT Filed Aug. 13, 2018, PCT No. PCT/US2018/046526
§ 371(c)(1), (2) Date Feb. 3, 2021,
PCT Pub. No. WO2020/036584, PCT Pub. Date Feb. 20, 2020.
Prior Publication US 2021/0302213 A1, Sep. 30, 2021
Int. Cl. G01F 1/84 (2006.01)
CPC G01F 1/8436 (2013.01) [G01F 1/8431 (2013.01); G01F 1/8477 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A meter electronics (20) for determining a damping of a meter assembly (10) of a flow meter (5), the meter electronics (20) comprising 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) comprising a storage system (204) including a routine and a process device in communication with the interface (201), the storage system (204) and the routine being configured to cause the meter electronics (20) to:
receive the vibrational response from the interface (201);
measure a plurality of response voltages (V) of the vibrational response, the plurality of response voltages (V) including one or more decay sections (430a, 530a-530f) and one or more rising sections (430b, 630a-630f); and
determine an aggregate damping-related value of the meter assembly (10) based on a decay characteristic (ζ) value determined from the one or more decay sections (430a, 530a-530f) and a damping characteristic (C) value determined from the one or more rising sections (430b, 630a-630f).