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1. 发明专利

JP2008170448A Viscometer 有权
标题翻译：粘度计
公开(公告)号：JP2008170448A
公开(公告)日：2008-07-24
申请号：JP2008023640
申请日：2008-02-04
申请人： Endress & Hauser Frohtec Ag , エンドレスウントハウザーフローテックアクチエンゲゼルシャフトEndress + Hauser Flowtec AG
发明人： DRAHM WOLFGANG , RIEDER ALFRED
IPC分类号： G01N11/14 , G01N11/16 , G01N1/00
CPC分类号： G01F1/849 , G01F1/8413 , G01F1/8418 , G01F1/8422 , G01F1/8431 , G01N11/167
摘要： PROBLEM TO BE SOLVED: To provide a viscometer for expressing the viscosity of a fluid, inside pipe.
SOLUTION: This viscometer is provided with a vibrating transducer having at least one flow tube 13 communicated with the pipe to guide the fluid, The flow tube is vibrated and driven by an excitation part 16 to generate a friction force in the fluid. The viscometer further includes a meter electronic circuit 50 for feeding an excitating current to the excitating part. The first internal intermediate value for expressing the friction force, acting in the fluid is formed by the meter electronic circuit, corresponding to the excitation current. In the present invention, the second internal intermediate value expressing a uniform substance in the fluid is generated in the meter electronic circuit, and the meter electronic circuit determines the viscosity value by using the two intermediate values. The first internal intermediate value is preferably normalized, by an amplitude control signal for the excitation current corresponding with the vibration of the flow tube. As a result, the viscosity value of the viscometer is very accurate and robust, in particular, irrespective of an installation position of the flow tube.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供用于在管内表达流体粘度的粘度计。解决方案：该粘度计设置有具有至少一个流管13的振动换能器，该流动管13与管道连通以引导流体。流管由激励部分16振动并驱动以在流体中产生摩擦力。粘度计还包括用于将兴奋电流馈送到兴奋部的仪表电子电路50。用于表达作用在流体中的摩擦力的第一内部中间值由对应于激励电流的仪表电子电路形成。在本发明中，在仪表电子电路中产生在流体中表现均匀物质的第二内部中间值，仪表电子电路通过使用两个中间值来确定粘度值。第一内部中间值优选地通过与流管的振动相对应的激励电流的幅度控制信号来归一化。结果，粘度计的粘度值非常精确和鲁棒，特别是与流管的安装位置无关。版权所有（C）2008，JPO＆INPIT

2. 发明申请

WO2005090926A2 IN-LINE MEASURING DEVICE 审中-公开
标题翻译： IN-LINE MONITOR
公开(公告)号：WO2005090926A2
公开(公告)日：2005-09-29
申请号：PCT/EP2005051200
申请日：2005-03-16
申请人： FLOWTEC AG , RIEDER ALFRED , FUCHS MICHAEL , DRAHM WOLFGANG , ITIN IBHO , SPRICH HANS-JOERG , WYSS SAMUEL
发明人： RIEDER ALFRED , FUCHS MICHAEL , DRAHM WOLFGANG , ITIN IBHO , SPRICH HANS-JOERG , WYSS SAMUEL
IPC分类号： G01F1/84 , G01N9/00 , G01N11/16 , G01F
CPC分类号： G01F1/849 , G01F1/8409 , G01F1/8413 , G01F1/8418 , G01F1/8422 , G01F1/8427 , G01F1/8431 , G01F1/8436 , G01F15/024 , G01N9/002 , G01N11/162
摘要： The inventive in-line-measuring device comprises a vibratory-type measuring sensor provided with at least one measuring tube through which a measurable medium passes during the device operation. Said measuring tube is displaceable by means of an exciter arrangement at least temporarily and/or at least in a parallel direction according to lateral oscillations and at least temporarily and/or at least in a parallel direction according to torsion oscillations around the longitudinal imaginary axis of the measuring tube alternating with lateral oscillations or temporary superimposed therewith. In addition, the in-line-measuring device comprises a sensor arrangement for producing the measuring tube oscillations corresponding to representative oscillation measurements. An electronic unit of the measuring device, which controls the exciter arrangement, generates, by means of the oscillation measuring signal an/or an excitation current at least temporary at least one measuring value representing at least one measurable physical measuring quantity, par example mass flow rate-mass flow rate, a medium density or viscosity. Said electronic unit of the measuring device also makes it possible to determine a first intermediate value which corresponds to the lateral current fraction of the excitation current for maintaining the lateral oscillations of the measuring tube and a second intermediate value corresponding to the torsion current value of the excitation current for maintaining the torsion oscillations of the measuring tube and/or to a torsion oscillation damping of the measuring tube. A high-accuracy value is determined taking into account said two intermediate values and is valid event for two- or more-phased media.
摘要翻译：在线测量装置包括振动型换能器和至少一个测量管，该测量管在待测量介质的操作期间流过。测量管至少部分地由至少临时和/或在横向振动和至少在时间和/或至少部分地在激励装置偏移，与横向振荡交替或这些叠加约假想测量管纵轴暂时扭转振荡。此外，在线测量装置包括用于产生与代表性振动测量信号相对应的测量管的振荡的传感器装置。由至少一个振荡测量信号产生的激发组件控制端仪表电子设备和/或通过至少暂时激励电流的装置中的至少一个测量值表示所述至少一个要测量的物理测量变量，诸如质量流的质量流率，密度，或所述介质的粘度。此外，仪表电子设备还提供与激励电流的横向电流部分相关的第一中间值，用于维持仪表管的横向振动，和/或; 测量管的横向振荡的阻尼对应，并且第二中间值与保持激励电流的测量管扭转电流分量的扭转振荡服务，和/或对应于所述测量管的扭转振荡的阻尼被确定。为了以较高的测量精度产生测量值，这也是考虑到两个中间值而确定的。如此获得的测量值特别是甚至在使用两相或多相介质时也以高精度表征。

3. 发明申请

WO2007045539A3 IN-LINE MEASURING DEVICE 审中-公开
标题翻译： IN-LINE MONITOR
公开(公告)号：WO2007045539A3
公开(公告)日：2007-06-21
申请号：PCT/EP2006066636
申请日：2006-09-22
申请人： FLOWTEC AG , DRAHM WOLFGANG , RIEDER ALFRED , FUCHS MICHAEL
发明人： DRAHM WOLFGANG , RIEDER ALFRED , FUCHS MICHAEL
IPC分类号： G01F1/84 , G01F25/00 , G01N9/00 , G01N11/16
CPC分类号： G01F1/849 , G01F1/8413 , G01F1/8418 , G01F1/8431 , G01F1/8436 , G01F15/024 , G01F25/0007 , G01N9/002
摘要： One object of the invention is to specify an in-line measuring device having a vibration-type measurement sensor (1), in particular a Coriolis mass flowmeter/density measuring device and/or a viscosity measuring device, which is suitable, on the one hand, for measuring the physical measurement variable to be measured, in particular the mass flow rate, the density and/or the viscosity, in a very accurate manner and, on the other hand, is capable of detecting a deposit, which forms on the measuring tube (10), at least when a minimum deposit thickness is exceeded. Another object of the invention is to specify a corresponding method which enables reliable detection and/or sufficiently accurate measurement of a deposit which has formed on the measuring tube (10). Furthermore, one object of the invention is also to monitor tube walls which come into contact with the medium, in particular also the pipeline which is connected to the measurement sensor, for any possible occurrence of a deposit.
摘要翻译：本发明的一个目的是提供一种具有一传感器的振动型，尤指，一种科里奥利质量流量/密度测量装置和/或粘度测量装置，以指示上适于一方面（1）的所测量的物理的在线测量装置被测，尤指的质量流率，密度和/或精确地测量粘度，另一方面是能够（10）在所述测量管内衬，至少在超过最小涂层厚度被检测到。本发明的另一个目的是提供一种相应的方法，其允许可靠的检测和/或所形成的测量管覆盖物（10）的足够精确的测量。此外，本发明的目的与管壁接触的介质的一个目的，尤指，连接至传感器管道的装置来监测注意力一个可能的覆盖物侵染。

4. 发明申请

WO2005057131A9 CORIOLIS MASS FLOWMETER 审中-公开
公开(公告)号：WO2005057131A9
公开(公告)日：2005-08-25
申请号：PCT/EP2004053322
申请日：2004-12-07
申请人： FLOWTEC AG , MATT CHRISTIAN , WENGER ALFRED , FUCHS MICHAEL , DRAHM WOLFGANG
发明人： MATT CHRISTIAN , WENGER ALFRED , FUCHS MICHAEL , DRAHM WOLFGANG
IPC分类号： G01F1/84 , G01F25/00 , G01N9/00 , G01N11/16 , G01C19/00
CPC分类号： G01F25/0007 , G01F1/8409 , G01F1/8413 , G01F1/8418 , G01F1/8422 , G01F1/8431 , G01F1/8436 , G01F1/849 , G01N11/16 , G01N2009/006
摘要： Disclosed is a Coriolis mass flowmeter/density meter comprising at least one measuring tube (11) through which a two-phase or multiphase medium flows during operation thereof. A supporting means (12) of the Coriolis mass flowmeter/density meter is fixed to an inlet end and an outlet end of the measuring tube (11), thus clamping the same so as to allow the measuring tube (11) to vibrate. The measuring tube (11) is made to vibrate mechanically, particularly to perform bending vibrations, by means of an excitation system (13). The inventive Coriolis mass flowmeter/density meter further comprises means (141, 142) for generating test signals (xs1, xs2 ) representing vibrations at the inlet end and outlet end of the measuring tube (11). An electronic evaluation unit (2) generates an intermediate value (X'm) that is derived from the test signals (xs1, xs2) and represents an uncorrected mass flow rate as well as a corrected value (XK) for the intermediate value (X m), said corrected value being derived from the test signals (xs1, xs2), especially from a measured value (X

5. 发明申请

WO2005057137A9 CORIOLIS MASS FLOWMETER 审中-公开
公开(公告)号：WO2005057137A9
公开(公告)日：2005-08-25
申请号：PCT/EP2004053323
申请日：2004-12-07
申请人： FLOWTEC AG , MATT CHRISTIAN , WENGER ALFRED , FUCHS MICHAEL , DRAHM WOLFGANG
发明人： MATT CHRISTIAN , WENGER ALFRED , FUCHS MICHAEL , DRAHM WOLFGANG
IPC分类号： G01F1/84 , G01F25/00 , G01N9/00 , G01N11/16 , G01F
CPC分类号： G01F25/0007 , G01F1/8409 , G01F1/8413 , G01F1/8418 , G01F1/8422 , G01F1/8431 , G01F1/8436 , G01F1/849 , G01N11/16 , G01N2009/006
摘要： Disclosed is a Coriolis mass flowmeter/density meter comprising at least one measuring tube (11) through which a two-phase or multiphase medium flows during operation thereof. A supporting means (12) of the Coriolis mass flowmeter/density meter is fixed to an inlet end and an outlet end of the measuring tube (11), thus clamping the same so as to allow the measuring tube (11) to vibrate. The measuring tube (11) is made to vibrate mechanically, particularly to perform bending vibrations, by means of an excitation system (13). The inventive Coriolis mass flowmeter/density meter further comprises means (141, 142) for generating test signals (xs1, xs2 ) representing vibrations at the inlet end and outlet end of the measuring tube (11). An electronic evaluation unit (2) generates an intermediate value (X'm) that is derived from the test signals (xs1, xs2) and represents a tentatively determined mass flow rate as well as a second intermediate value (X2) derived from the test signals (xs1, xs2), especially from a measured value (Xrho) which is also generated in the electronic evaluation unit (2) and represents a density of the medium, said second intermediate value (X2) representing a measure of a concentration of a phase in the medium. A corrected value (XK) for the first intermediate value (X'm) is determined using the second intermediate value (X2), said corrected value (XK ) being selected among a plurality of predefined values stored in a table memory (56) by means of the intermediate value (X2). The electronic evaluation unit (2) additionally generates a measured value (Xm) representing a mass flow rate with the aid of the intermediate value (X'm) and the corrected value (XK).

6. 发明申请

WO2004053428A3 PROCESS METER 审中-公开
公开(公告)号：WO2004053428A3
公开(公告)日：2004-10-28
申请号：PCT/EP0313543
申请日：2003-12-02
申请人： FLOWTEC AG
发明人： DRAHM WOLFGANG , RIEDER ALFRED
IPC分类号： G01D20060101 , G01D3/028 , G01D3/036 , G01D21/00 , G01F1/84 , G01F15/02 , G01N9/00 , G01N11/00 , G12B7/00
CPC分类号： G01F1/8409 , G01D3/0365 , G01F1/8413 , G01F1/8422 , G01F1/8436 , G01F1/849 , G01F15/024 , G01N9/00 , G01N11/00 , G01N2011/0013
摘要： The process meter serves for the measurement of a physical process parameter of a medium contained in a process vessel or flowing in a process line and comprises a meter probe (10), with a sensor arrangement (60), providing measured signals (s1, s2) and a meter electronics device (50), connected to the meter probe (10). The sensor arrangement (60) comprises a primary sensor element (17), reacting to the physical process parameter, also in particular, changes in the physical process parameter and provides a measured signal (s1), dependent on the physical process parameter. The sensor arrangement (60) further comprises at least one temperature sensor (40), arranged in the meter probe (10), which records a local temperature (T1) in the meter probe (10) and provides the sensor arrangement (60) with a measured temperature signal (theta1) which represents the temperature (T1) in the meter probe (10). The meter electronics device (50) generates an instantaneous measured value (X), representing the physical parameter, using the measured signal (s1) and using a correction value (K1) for the measured signal (s1). The meter electronics device (50) determines said correction value (K1), by means of the curve with time of the one measured temperature signal (theta1), such as to take account of the temperature values recorded by the temperature sensor (40) in the past. According to the invention, temperature generated errors in the measured signal are well compensated by said process meter, even with a fluctuating transition range for the temperature distribution within the meter probe and particularly with the application of only a few temperature sensors.
摘要翻译：用于测量的预先保存的物理过程变量中的处理容器中或在工艺管线中流动的过程测量设备。它包括具有一个测量信号（S1，S2）供给所述传感器装置（60），并且耦合到所述测量传感器（10）测量的设备电路（50）的测量换能器（10）。传感器组件（60）具有主要的物理过程变量，尤指，改变工艺变量，传感器元件（17）反应，并通过物理过程变量测量信号（S1）的影响的传感器元件（17）的装置提供。此外，传感器组件（60）的至少一个在测量换能器（10），布置用于检测的温度，T1，在测量换能器（10）在本地和由温度Senors的装置（40）一个提供所述传感器装置（60）的温度传感器（40）温度，T1，在测量变换器（10）代表温度测量信号（theta1）的。使用测量信号（S1），并使用用于测量信号（S1）的修正值（K1）产生测量装置电子器件（50），表示当前测量值（X）的物理量。测量装置电子器件（50），基于在以这样的方式，在过去的通过检测的温度传感器（40）的温度值被考虑一个温度测量信号（theta1）的时间分布的校正值（K1）。在本发明方法的测量装置的特征在于，温度分布的非稳态过渡区域测量换能器（10），温度诱导的错误在ESP中的测量信号的内部。，即使仅使用少量的温度传感器，以及补偿时。

7. 发明申请

WO2006122881A2 IN-LINE MEASURING DEVICES AND METHOD FOR COMPENSATION MEASUREMENT ERRORS IN IN-LINE MEASURING DEVICES 审中-公开
标题翻译： IN-LINE用于补偿测量误差测量设备和方法，IN-LINE测量装置
公开(公告)号：WO2006122881A2
公开(公告)日：2006-11-23
申请号：PCT/EP2006062072
申请日：2006-05-04
申请人： FLOWTEC AG , DRAHM WOLFGANG , RIEDER ALFRED , ZHU HAO
发明人： DRAHM WOLFGANG , RIEDER ALFRED , ZHU HAO
CPC分类号： G01F1/8409 , G01F1/74 , G01F1/8413 , G01F1/8418 , G01F1/8422 , G01F1/8427 , G01F1/8431 , G01F1/8436 , G01F1/849 , G01F15/02
摘要： The inline measuring device comprises a vibratory-type transducer and a measuring device electronics electrically coupled with the vibratory-type transducer. The vibratory-type transducer includes at least one measuring tube being inserted into the course of a pipeline and serving for conducting a mixture to be measured. An exciter arrangement acting on the measuring tube for causing the at least one measuring tube to vibrate and a sensor arrangement sensing vibrations of the at least one measuring tube and delivering at least one oscillation measurement signal representing oscillations of the measuring tube. The measuring device electronics delivers an excitation current driving the exciter arrangement. Further, the inline measuring device electronics is adapted to produce a measured value representing the physical, measured quantity of the mixture to be measured. Therefor, the measuring device electronics estimates from the excitation current and from said at least one oscillation measurement signal a Coriolis coupling coefficient. This Coriolis coupling coefficient corresponds with an instantaneous coupling between a first natural eigenmode of the measuring tube currently driven by the exciter arrangement and a second natural eigenmode of said measurement tube. In this second eigenmode the measurement tube has an eigenform corresponding with a mode of vibration caused by Coriolis forces induced in the flowing mixture. Due to a variation of a concentration of at least one of a component of the mixture the Coriolis coupling coefficient varies in time.
摘要翻译：在线测量装置包括振动型转换器和一个测量装置电子器件电耦合的振动型换能器。振动型转换器包括至少一个测量管被插入管道的过程中，服务用于传导混合物进行测量。的激励器装置作用在用于使所述至少一个测量管振动和传感器装置感测所述至少一个测量管的振动，并提供表示测量管的振荡的至少一个振荡测量信号的测量管。测量装置电子器件提供在励磁电流驱动激励器布置。此外，在线测量装置电子器件是angepasst以产生要被测量代表该混合物的物理测量量的测量值。为此，从励磁电流和从所述测量装置电子器件的估计的至少一个振荡测量信号的科里奥利耦合系数。这个科里奥利耦合系数与当前由激励器装置和所述测量管的第二自然本征模式驱动所述测量管的第一本征模式自然之间的瞬时耦合相对应。在该第二本征模式的测量管具有以本质形成具有通过在流动的混合物诱导的科里奥利力引起的振动的模式相对应的。由于科里奥利耦合系数随时间变化的混合物的组分中的至少一个的浓度的变化。

8. 发明申请

WO2005057137A2 CORIOLIS MASS FLOWMETER 审中-公开
标题翻译：科里奥利质量流量计
公开(公告)号：WO2005057137A2
公开(公告)日：2005-06-23
申请号：PCT/EP2004053323
申请日：2004-12-07
申请人： FLOWTEC AG , MATT CHRISTIAN , WENGER ALFRED , FUCHS MICHAEL , DRAHM WOLFGANG
发明人： MATT CHRISTIAN , WENGER ALFRED , FUCHS MICHAEL , DRAHM WOLFGANG
IPC分类号： G01F1/84 , G01F25/00 , G01N9/00 , G01N11/16 , G01F
CPC分类号： G01F25/0007 , G01F1/8409 , G01F1/8413 , G01F1/8418 , G01F1/8422 , G01F1/8431 , G01F1/8436 , G01F1/849 , G01N11/16 , G01N2009/006
摘要： Disclosed is a Coriolis mass flowmeter/density meter comprising at least one measuring tube (11) through which a two-phase or multiphase medium flows during operation thereof. A supporting means (12) of the Coriolis mass flowmeter/density meter is fixed to an inlet end and an outlet end of the measuring tube (11), thus clamping the same so as to allow the measuring tube (11) to vibrate. The measuring tube (11) is made to vibrate mechanically, particularly to perform bending vibrations, by means of an excitation system (13). The inventive Coriolis mass flowmeter/density meter further comprises means (141, 142) for generating test signals (xs1, xs2 ) representing vibrations at the inlet end and outlet end of the measuring tube (11). An electronic evaluation unit (2) generates an intermediate value (X'm) that is derived from the test signals (xs1, xs2) and represents a tentatively determined mass flow rate as well as a second intermediate value (X2) derived from the test signals (xs1, xs2), especially from a measured value (Xrho) which is also generated in the electronic evaluation unit (2) and represents a density of the medium, said second intermediate value (X2) representing a measure of a concentration of a phase in the medium. A corrected value (XK) for the first intermediate value (X'm) is determined using the second intermediate value (X2), said corrected value (XK ) being selected among a plurality of predefined values stored in a table memory (56) by means of the intermediate value (X2). The electronic evaluation unit (2) additionally generates a measured value (Xm) representing a mass flow rate with the aid of the intermediate value (X'm) and the corrected value (XK).
摘要翻译：科里奥利质量流量/密度计包括至少一个测量管（11），其在两相或多相介质的操作中流过。科里奥利质量流量/密度计的载体装置（12）被固定在入口端和所述测量管（11），并且因此它偏压可摆动的出口端。在操作中，测量管（11）借助于激励器组件（13）进行机械振动，尤其是弯曲振动，偏移。另外，科里奥利质量流量/密度计包括用于产生表示测量信号（XS1，XS2）测量管（11）的进气侧和排气侧的振荡装置（141，142）。在评价一个同样的评价电子器件（2）生成表示暂时确定的质量流率和测量信号（XS1，XS2）中的一个，尤指衍生中间值（X“米）的测量信号（XS1，XS2）中的一个。生成电子（2），介质的密度表示第二测量值（Xrho），派生的第二中间值（X2），其代表介质的一部分相位的量度。使用中间值（X2），校正值（XK）的第一中间值（X“米）被确定，其中，所述修正值（XK）由中间值（X2）的装置，由多个表中的存储器存储的选定（56）的预定值，此外，评估电子装置（2）使用中间值（X'm）和校正值（XK）产生表示质量流量的测量质量值（Xm）。

9. 发明申请

WO2004038341A3 PROCESS MEASURING INSTRUMENT 审中-公开
标题翻译： PROCESS METER
公开(公告)号：WO2004038341A3
公开(公告)日：2004-10-28
申请号：PCT/EP0311838
申请日：2003-10-24
申请人： FLOWTEC AG
发明人： DRAHM WOLFGANG , RIEDER ALFRED , ZEISLMEIER HELMUT , FROEHLICH GABRIELE
IPC分类号： G01D11/10
CPC分类号： G01D11/10
摘要： The process measuring instrument comprises a sensor which may be fitted in the wall of a vessel containing a process medium and an electronics housing, mechanically coupled to the sensor, for the measuring instrument electronics. The electronics housing is at least temporarily subjected to vibrations generated by the sensor during operation, or transmitted by the sensor. In order to reduce the amplitude of oscillations for said vibrations of the electronics housing, at last one vibration damper is fixed to the wall of the electronics housing, which is at least temporarily set in oscillation to dissipate the oscillation energy transmitted to the electronics housing. The noise fraction in the measured signal can be reduced by the suppression of such housing vibrations such that a significant improvement in the signal to noise ratio in the measured signal can be detected.
摘要翻译：过程测量装置包括可插入承载过程介质的容器的壁中的传感器和机械地耦合至用于测量装置电子装置的传感器的电子装置壳体。电子设备外壳在运行期间暴露在传感器中，至少暂时通过传感器振动产生或传输。为了减小电子装置壳体的这种振动的振动幅度，至少一个减振器被固定到电子装置壳体的壁上，该电子装置壳体被允许至少暂时振动以消散引入到电子装置壳体中的振动能量。通过抑制这样的壳体振动，可以将测量信号中的噪声分量降低到可以建立测量信号中的有用噪声比的显着提高的程度。

10. 发明申请

WO2008113774A3 METHOD FOR ANTICIPATORY MAINTENANCE AND/OR METHOD FOR DETERMINING THE ELECTRIC CONDUCTIVITY OF A MAGNETIC-INDUCTIVE FLOW METER 审中-公开
标题翻译： METHOD FOR前瞻性维护和/或方法，用于确定电导率在磁感应流量测量仪
公开(公告)号：WO2008113774A3
公开(公告)日：2008-11-13
申请号：PCT/EP2008053135
申请日：2008-03-17
申请人： FLOWTEC AG , DRAHM WOLFGANG , RUFER HEINZ , SCHMALZRIED FRANK
发明人： DRAHM WOLFGANG , RUFER HEINZ , SCHMALZRIED FRANK
IPC分类号： G01F1/58
CPC分类号： G01F1/584 , G01F25/0007
摘要： The invention relates to a method for the anticipatory maintenance of a magnetic-inductive flow meter and/or to a method for determining the electric conductivity of a medium flowing through a magnetic-inductive flow meter, the magnetic-inductive flow meter comprising the following components: a magnet system, which produces a magnetic field permeating the measuring tube and extending substantially transversely to the measuring tube axis, at least two measuring electrodes coupled to the medium, the electrodes having a defined resting potential and being disposed in a region of the measuring tube that is located substantially perpendicular to the magnetic field, and a control/evaluation unit, which supplies information about the volume or mass flow of the medium in the measuring tube based on the measuring voltage induced in the measuring electrodes. For example, a first excitation signal having a first frequency (f 1 )
摘要翻译：本发明涉及一种用于预测性维护磁感应流量计和/或用于确定介质，流过磁感应流量计的导电性的方法的方法，该磁感应流量计包括：磁体系统通过释放，横向基本延伸于测量管轴线的磁场，至少两个与所述介质耦合测量电极具有限定静止电位，其被基本上垂直于测量管的磁场设置在，和一个控制/分析单元产生一个测量管，这提供了体积或基于在测量电极测量电压感应的电压测量管的介质的质量流量的信息。它正在或将具有第一频率的第一激励信号（F _{1 ）}

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