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1
Coriolis frequency tracking
Published 2018“…Motion is induced in a conduit such that the conduit vibrates in a major mode of vibration having a major amplitude and a minor mode of vibration having a minor amplitude. …”
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2
Coriolis frequency tracking
Published 2014“…Motion is induced in a conduit such that the conduit vibrates in a major mode of vibration having a major amplitude and a minor mode of vibration having a minor amplitude. …”
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3
US Patent 7,660,681 B2: Compensating for frequency change in flowmeters
Published 2010“…A method for calculating a property of a fluid includes inducing motion in a conduit such that the conduit oscillates in a first mode of vibration and a second mode of vibration. The first mode of vibration has a corresponding first frequency of vibration and the second mode of vibration has a corresponding second frequency of vibration. …”
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4
US Patent 7,599,807 Compensating for frequency change in flowmeters
Published 2016“…The motion is induced such that the conduit oscillates in a first mode of vibration and a second mode of vibration. The first mode of vibration has a corresponding first frequency of vibration and the second mode of vibration has a corresponding second frequency of vibration. …”
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5
US Patent No. 8,473,224: Compensating for frequency change in flowmeters
Published 2013“…The motion is induced such that the conduit oscillates in a first mode of vibration and a second mode of vibration. The first mode of vibration has a corresponding first frequency of vibration and the second mode of vibration has a corresponding second frequency of vibration. …”
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6
Compensating for frequency change in flowmeters
Published 2009“…The motion is induced such that the conduit oscillates in a first mode of vibration and a second mode of vibration. The first mode of vibration has a corresponding first frequency of vibration and the second mode of vibration has a corresponding second frequency of vibration. …”
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7
US Patent 8,165,828 Compensating for frequency change in flowmeters
Published 2012“…The motion is induced such that the conduit oscillates in a first mode of vibration and a second mode of vibration. The first mode of vibration has a corresponding first frequency of vibration and the second mode of vibration has a corresponding second frequency of vibration. …”
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8
US Patent No 7,930,114 Compensating for frequency change in flowmeters
Published 2011“…The motion is induced such that the conduit oscillates in a first mode of vibration and a second mode of vibration. The first mode of vibration has a corresponding first frequency of vibration and the second mode of vibration has a corresponding second frequency of vibration. …”
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9
US Patent No. 8,706,430: Compensating for frequency change in flowmeters
Published 2014“…The motion is induced such that the conduit oscillates in a first mode of vibration and a second mode of vibration. The first mode of vibration has a corresponding first frequency of vibration and the second mode of vibration has a corresponding second frequency of vibration. …”
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10
US patent no. 7,509,219 B2: Correcting frequency in flowtube measurements
Published 2009“…Techniques are described for accurately measuring a density or other parameter of a fluid traveling through a vibratable conduit, using a flowmeter. The techniques involve obtaining measurements of a frequency of vibration of the conduit, as a function of a phase difference between two sensors measuring the vibration. …”
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11
US patent no. 7,065,455 B2: Correcting frequency in flowtube measurements
Published 2006“…Techniques are described for accurately measuring a density or other parameter of a fluid traveling through a vibratable conduit, using a flowmeter. The techniques involve obtaining measurements of a frequency of vibration of the conduit, as a function of a phase difference between two sensors measuring the vibration. …”
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12
US patent no. 7,146,280 B2: Startup and operational techniques for a digital flowmeter
Published 2006“…Once the flowtube reaches a resonant mode of vibration, the digital flowmeter may transition to a positive feedback mode, in which a sensor signal representing a motion of the flowtube is fed back to the flowtube as a drive signal, as part of a feedback loop. …”
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13
US patent no. 7,505,854 B2: Startup techniques for a digital flowmeter
Published 2009“…Once the flowtube reaches a resonant mode of vibration, the digital flowmeter may transition to a positive feedback mode, in which a sensor signal representing a motion of the flowtube is fed back to the flowtube as a drive signal, as part of a feedback loop. …”
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14
US patent no. 6,950,760 B2: Startup and operational techniques for a digital flowmeter
Published 2005“…Once the flowtube reaches a resonant mode of vibration, the digital flowmeter may transition to a positive feedback mode, in which a sensor signal representing a motion of the flowtube is fed back to the flowtube as a drive signal, as part of a feedback loop. …”
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15
US patent no. 7,904,256 B2: Startup techniques for a digital flowmeter
Published 2011“…Once the flowtube reaches a resonant mode of vibration, the digital flowmeter may transition to a positive feedback mode, in which a sensor signal representing a motion of the flowtube is fed back to the flowtube as a drive signal, as part of a feedback loop. …”
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16
Coriolis flow meter (RU 2715371)
Published 2020“…Operation of the Coriolis flow meter includes obtaining a measure of the input energy required to vibrate the conduit and a measure of the vibrational energy of the conduit, and determining the liquid volume fraction of the wet gas flow from the input energy and the vibrational energy. …”
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17
Wet gas measurement
Published 2009“… A multi-phase process fluid is passed through a vibratable flowtube. Motion is induced in the vibratable flowtube. …”
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18
US patent no. 8,447,535: Wet gas measurement
Published 2013“…A multi-phase process fluid is passed through a vibratable flowtube. Motion is induced in the vibratable flowtube. …”
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19
Wet gas measurement
Published 2016“… A multi-phase process fluid is passed through a vibratable flowtube. Motion is induced in the vibratable flowtube. …”
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20
US patent no. 8,126,661: Wet gas measurement
Published 2012“…A multi-phase process fluid is passed through a vibratable flowtube. Motion is induced in the vibratable flowtube. …”
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