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1. 发明申请

US20220412785A1 VIBRONIC MEASURING SYSTEM FOR MEASURING A MASS FLOW RATE OF A FLUID MEASUREMENT MEDIUM 有权
公开(公告)号：US20220412785A1
公开(公告)日：2022-12-29
申请号：US17757120
申请日：2020-11-20
申请人： Endress+Hauser Flowtec AG
发明人： Alfred Rieder , Robert Lalla , Marcel Braun , Ennio Bitto , Johan Pohl
IPC分类号： G01F1/84 , G01R33/00 , G01R33/07
摘要： The measuring system comprises a vibration-type measuring sensor, a sensor housing, a magnetic-field detector, and measuring-system electronics electrically coupled both to an oscillation exciter and to oscillation-sensing devices of the measuring sensor. The measuring sensor is inside the sensor housing and the magnetic-field detector is outside the sensor housing. The magnetic-field detector is designed to convert changes in the magnetic field into a magnetic-field signal having an amplitude dependent on a magnetic flux through the magnetic-field detector and/or on an area density of said magnetic flux. The measuring-system electronics are designed to determine, on the basis of oscillation measurement signals of the measuring sensor, the mass-flow-rate measurement values representing the mass flow rate and to at least qualitatively determine, on the basis of the magnetic-field signal, whether an external magnetic field is established inside the measuring sensor.

2. 发明申请

US20220099543A1 CORIOLIS MASS FLOW METER 有权
公开(公告)号：US20220099543A1
公开(公告)日：2022-03-31
申请号：US17414449
申请日：2019-11-21
申请人： Endress+Hauser Flowtec AG
发明人： Alfred Rieder , Robert Lalla , Rémy Scherrer
IPC分类号： G01N9/36 , G01F1/84
摘要： A Coriolis mass flow meter comprises a transformer circuit configured to receive and analyze vibration measurement signals to determine mass flow measurement values which represent a mass flow of a fluid and to determine characteristic number values for at least one sensor characteristic number, which characterizes and/or is based on at least one harmonic component of at least one of the vibration measurement signals, wherein each vibration measurement signal includes a useful component, having a frequency corresponding to a drive frequency with an amplitude based on a respective magnetic flux through a respective vibration sensor of the flow meter, and a harmonic component having a frequency corresponding to a whole-number multiple of the drive frequency and an amplitude based on the respective magnetic flux.

3. 发明授权

US11271390B2 Intrinsically safe circuit arrangement 有权
公开(公告)号：US11271390B2
公开(公告)日：2022-03-08
申请号：US16321625
申请日：2017-06-26
申请人： Endress+Hauser Flowtec AG
发明人： Bernhard Koch , Robert Lalla
IPC分类号： H02H9/00 , H02H1/00
摘要： An intrinsically safe circuit arrangement for supply of electrical power to a consumer having a maximum power requirement, comprising: a voltage source; a voltage monitor for limiting an output voltage to a maximum value; an electrical current limiting resistor for limiting an output electrical current to a maximum value; and an actively controlled electrical current limiting circuit for limiting output electrical current to an electrical current limit value, wherein the electrical current limiting circuit is embodied such that it controls at least the output current to the electrical current limit value as a function of a voltage drop across a part of the electrical current limiting circuit, when a loading of the circuit arrangement above the nominal load is present, such that an adapting of the electrical current limit value occurs, preferably based on a predetermined characteristic curve.

4. 发明申请

US20220057245A1 CORIOLIS MASS FLOWMETER WITH MAGNETIC FIELD DETECTOR 有权
公开(公告)号：US20220057245A1
公开(公告)日：2022-02-24
申请号：US17416133
申请日：2019-11-21
申请人： Endress+Hauser Flowtec AG
发明人： Robert Lalla , Alfred Rieder , Ennio Bitto , Marcel Braun
IPC分类号： G01F1/84
摘要： The Coriolis mass flowmeter comprises a measuring transducer having a vibration element, an exciter arrangement, and a sensor arrangement The flowmeter further includes an electronic transmitter circuit coupled with the exciter arrangement and the sensor arrangement. The transmitter circuit supplies power to the exciter arrangement to force mechanical oscillations having a wanted frequency. The sensor arrangement includes two electrodynamic oscillation sensors to convert oscillatory movements of the vibration element into an electrical signal having an alternating voltage having an amplitude dependent on the wanted frequency and on a magnetic flux of its oscillation sensor. The sensor arrangement includes a magnetic field detector adapted to convert changes of the magnetic field into a magnetic field signal having an amplitude dependent on a magnetic flux and/or an areal density of the magnetic flux. The transmitter circuit ascertains mass flow measured values and ascertains whether an external magnetic field is present.

5. 发明授权

US09897473B2 Measuring transducer of vibration-type 有权
公开(公告)号：US09897473B2
公开(公告)日：2018-02-20
申请号：US15107129
申请日：2014-11-17
申请人： Endress + Hauser Flowtec AG
发明人： Marcel Braun , Robert Lalla , Christian Matt
IPC分类号： G01F1/84
CPC分类号： G01F1/8431 , G01F1/8413 , G01F1/8477
摘要： The measuring transducer comprises four measuring tubes (181, 182, 183, 184) as well as two oscillation exciters and (51, 52). The oscillation exciter (51) includes a coil (511) secured to the measuring tube (181) as well as a permanent magnet (512) secured to the measuring tube (182) and movable relative to the coil (511) and the oscillation exciter (52) includes a coil (521) secured to the measuring tube (183) as well as a permanent magnet (522) secured to the measuring tube (184) and movable relative to the coil (521). In the case of the measuring transducer of the invention, the coils (511, 521) are connected electrically in parallel with one another.

6. 发明申请

US20170003156A1 Measuring Transducer of Vibration-Type 有权
标题翻译：振动型测量传感器
公开(公告)号：US20170003156A1
公开(公告)日：2017-01-05
申请号：US15107129
申请日：2014-11-17
申请人： ENDRESS + HAUSER FLOWTEC AG
发明人： Marcel Braun , Robert Lalla , Christian Matt
IPC分类号： G01F1/84
CPC分类号： G01F1/8431 , G01F1/8413 , G01F1/8477
摘要： The measuring transducer comprises four measuring tubes (181, 182, 183, 184) as well as two oscillation exciters and (51, 52). The oscillation exciter (51) includes a coil (511) secured to the measuring tube (181) as well as a permanent magnet (512) secured to the measuring tube (182) and movable relative to the coil (511) and the oscillation exciter (52) includes a coil (521) secured to the measuring tube (183) as well as a permanent magnet (522) secured to the measuring tube (184) and movable relative to the coil (521). In the case of the measuring transducer of the invention, the coils (511, 521) are connected electrically in parallel with one another.
摘要翻译：测量传感器包括四个测量管（181,182,183,184）以及两个振荡激励器（51,52）。振荡激励器（51）包括固定在测量管（181）上的线圈（511）以及固定在测量管（182）上并可相对于线圈（511）移动的永磁体（512）和振荡激励器（52）包括固定到测量管（183）上的线圈（521）以及固定到测量管（184）并相对于线圈（521）可移动的永磁体（522）。在本发明的测量传感器的情况下，线圈（511,521）彼此并联地电连接。

7. 发明申请

US20220307884A1 METHOD FOR OPERATING A MEASURING DEVICE WITH AT LEAST ONE OSCILLATOR, AND MEASURING DEVICE FOR CARRYING OUT SAID METHOD 有权
公开(公告)号：US20220307884A1
公开(公告)日：2022-09-29
申请号：US17642481
申请日：2020-08-20
申请人： Endress+Hauser Flowtec AG
发明人： Rémy Scherrer , Robert Lalla , Reinhard Huber , Martin Josef Anklin
IPC分类号： G01F1/84 , G01F15/02
摘要： A method for operating a measuring device with a measuring sensor having an oscillator, the oscillator having a vibratory measuring tube for guiding a medium, comprises: Determining a current value of a resonance frequency for a vibration mode of the oscillator; exciting a vibration out of resonance with an excitation frequency that differs from the current value of the resonance frequency; and determining the amplitude of a sensor signal that represents the vibration out of resonance. The amplitude of the sensor signal of the vibration out of resonance, a sensor signal of a vibration sensor of the oscillator, is determined by a low-pass filter the time constant of which is not less than 1000 period lengths of the vibration out of resonance. Also disclosed is a measuring device for carrying out said method.

8. 发明授权

US11092631B2 Driver circuit, converter electronics formed therewith and measuring system formed therewith 有权
公开(公告)号：US11092631B2
公开(公告)日：2021-08-17
申请号：US16324370
申请日：2017-07-14
申请人： Endress + Hauser Flowtec AG
发明人： Robert Lalla
IPC分类号： G01R27/00 , G01F1/84
摘要： In a driver circuit having a signal generator, end stage and amplitude control, the signal outputs an analog signal to a signal input of the end stage, with an amplitude predetermined by an amplitude control value. A load output of the end stage is connected with a voltage measurement input of the amplitude control providing a load current having an electrical current level dependent on an electrical input signal applied on signal input and a load voltage having a voltage level dependent on the electrical current level of the load current. The amplitude control ascertains an amplitude deviation between actual and desired amplitude values for ascertaining an indicator value, which signals that a magnitude of a measurement voltage input is too high, if a threshold value has been exceeded and, if so, to ascertain an amplitude control value lessening further amplitude control values outputted to the amplitude control input.

9. 发明申请

US20210223080A1 MEASURING DEVICE FOR DETERMINING THE DENSITY, THE MASS FLOW RATE AND/OR THE VISCOSITY OF A FLOWABLE MEDIUM, AND METHOD FOR OPERATING SAME 有权
公开(公告)号：US20210223080A1
公开(公告)日：2021-07-22
申请号：US17055853
申请日：2019-04-17
申请人： Endress+Hauser Flowtec AG
发明人： Hao Zhu , Alfred Rieder , Yaoying Lin , Robert Lalla , Reinhard Huber
IPC分类号： G01F1/84 , G01N9/00 , G01N11/00
摘要： A measuring device for determining density, mass flow rate and/or viscosity of a flowable medium includes: an oscillator including at least one oscillatable measuring tube for conveying the medium, and having at least one oscillatory mode, whose eigenfrequency depends on density of the medium; an exciter for exciting the oscillatory mode; at least one oscillation sensor for registering oscillations of the oscillator; and an operating-evaluating circuit, which is adapted to supply the exciter with an excitation signal, to register signals of the oscillation sensor, based on the signals of the oscillation sensor to ascertain current values of the eigenfrequency of the oscillator as well as variations of the eigenfrequency, and to determine a value characterizing density variations of the medium, wherein the value depends on a function, which is proportional to the variation of the eigenfrequency and has an eigenfrequency dependent normalization.

10. 发明申请

US20130197818A1 Measuring Arrangement for Registering Chemical and/or Physical, Measured Variables, as well as Measuring Device therefor 有权
标题翻译：用于注册化学和/或物理，测量变量的测量安排以及测量装置
公开(公告)号：US20130197818A1
公开(公告)日：2013-08-01
申请号：US13706535
申请日：2012-12-06
申请人： Endress + Hauser Flowtec AG
发明人： Jiri Karbula , Robert Lalla , Gernot Engstler
IPC分类号： G06F19/00
CPC分类号： G06F19/00 , G01D9/005 , G08C19/02
摘要： A measuring arrangement of the invention includes: At least one measuring device, which generates, repeatedly during operation, measured values, especially digital, measured values, representing the at least one measured variable to be registered; as well as an electronic data processing system superordinated to the at least one measuring device, especially a data processing system which is spatially distributed and/or spatially remote from the measuring device. Measuring device and data processing system are connected together by means of at least two line-pairs, through each of which an electrical current flows, at least at times, during operation. According to the invention, the measuring device transmits the internally generated, measured values to the data processing system via both line-pairs. In this way, it is then possible to transmit a plurality of measured values simultaneously, when each of the two line-pairs is embodied as part of a two-conductor current-loop.
摘要翻译：本发明的测量装置包括：至少一个测量装置，其在操作期间重复地产生表示待登记的至少一个测量变量的测量值，特别是数字测量值; 以及从属于至少一个测量装置的电子数据处理系统，特别是在空间上分布和/或空间上远离测量装置的数据处理系统。至少在操作期间，测量装置和数据处理系统通过至少两个线对连接在一起，每个线对至少有时电流流动。根据本发明，测量装置经由两条线对将内部生成的测量值传送到数据处理系统。以这种方式，当两个线对中的每一个被实现为双导体电流回路的一部分时，可以同时发送多个测量值。

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