Magnetic flowmeter with fault detection
    1.
    发明授权
    Magnetic flowmeter with fault detection 失效
    具有故障检测功能的磁流量计

    公开(公告)号:US5370000A

    公开(公告)日:1994-12-06

    申请号:US906507

    申请日:1992-06-30

    IPC分类号: G01F1/60 G01F1/00

    CPC分类号: G01F1/60

    摘要: A circuit for detecting faults in a magmeter system in which an electrically conductive fluid flows which is maintained at a reference potential. The circuit includes at least two electrodes in contact with the fluid. The electrode signals are conducted to the corresponding inputs of a measuring circuit. An alarm circuit is connected ahead of the measuring circuit. A difference in the magnitude of the values (+U.sub.S and -U.sub.S) of the electrode signals and/or non-symmetries in the noise content of the electrode signals and/or a disturbance in the high frequency signal (U.sub.G) in a loop which contains the electrodes and a high frequency producing generator causes an alarm to be activated.

    摘要翻译: 用于检测在其中导电流体流动的磁力计系统中的故障保持在参考电位的电路。 电路包括与流体接触的至少两个电极。 电极信号被传导到测量电路的相应输入端。 在测量电路之前连接一个报警电路。 电极信号和/或电极信号的噪声含量中的非对称值的值(+ US和-US)和/或在循环中的高频信号(UG)中的干扰的值的差异 包含电极和高频产生器引起报警被激活。

    Vortex Flowmeter
    3.
    发明申请
    Vortex Flowmeter 失效
    涡街流量计

    公开(公告)号:US20080314160A1

    公开(公告)日:2008-12-25

    申请号:US11662960

    申请日:2005-09-28

    IPC分类号: G01F1/32

    CPC分类号: G01F1/3209

    摘要: A vortex flowmeter is disclosed, which includes, among other features, a closed measuring tube, through which a flowable medium that is to be quantitatively measured flows, the medium flowing against a disturbing element that is arranged in the measuring tube. A vibration sensor is arranged downstream in the direction of flow detecting the vortex frequency generated by the disturbing element. An electronic evaluation unit is disposed downstream of the vibration sensor converting it into an electric signal corresponding to the quantitative flow rate or volumetric flow rate. The relative position can be changed between the measuring tube and the disturbing element and/or the measuring tube and the vibration sensor in a signal-optimizing manner.

    摘要翻译: 公开了一种涡流流量计,其包括封闭的测量管,待定量测量的可流动介质通过该测量管流动,所述介质流动布置在测量管中的扰动元件。 振动传感器被布置在检测由扰动元件产生的涡流频率的流动方向的下游。 电子评估单元设置在振动传感器的下游,将其转换成对应于定量流量或体积流量的电信号。 可以以信号优化方式在测量管和干扰元件和/或测量管和振动传感器之间改变相对位置。

    Method And Device For The Diagnosis Of Technical Devices Disposed Within An Industrial Installation
    4.
    发明申请
    Method And Device For The Diagnosis Of Technical Devices Disposed Within An Industrial Installation 失效
    在工业安装中处理的技术设备的诊断方法和设备

    公开(公告)号:US20080167745A1

    公开(公告)日:2008-07-10

    申请号:US11663968

    申请日:2005-09-28

    IPC分类号: G06F17/00

    CPC分类号: G06Q10/06 Y02P90/86

    摘要: Disclosed is a method for diagnosing technical devices, especially pumps and valves, which are arranged within an installation used in the processing industry. According to said method, disturbance variables that affect the devices and influence the service life thereof are detected by means of sensory technology while the data of said disturbance variables is processed in a simulative manner in order to determine the expected service life of each device. Various maintenance instructions which are output along with the expected remaining trouble-free operating time of the industrial installation when a lower service life threshold value of one or several devices has been reached are stored in an expert unit.

    摘要翻译: 公开了一种用于诊断技术装置的方法,特别是泵和阀,其布置在处理工业中使用的装置内。 根据所述方法,通过感官技术来检测影响设备并影响其使用寿命的扰动变量,同时以模拟方式处理所述干扰变量的数据,以便确定每个设备的预期使用寿命。 当达到一个或多个设备的较低使用寿命阈值时,与工业设备的预期的无故障运行时间一起输出的各种维护指令被存储在专家单元中。

    Measuring instrument and method of measuring flows
    6.
    发明申请
    Measuring instrument and method of measuring flows 失效
    测量仪器和测量流量的方法

    公开(公告)号:US20050114055A1

    公开(公告)日:2005-05-26

    申请号:US10942996

    申请日:2004-09-17

    CPC分类号: G01F1/329

    摘要: A measuring instrument whose measuring principle is based on an oscillator, for example an eddy counter, and in which there is arranged a sensor for recording a measured signal (S(t)), which can be supplied to an evaluation unit (2), characterized in that, from the phase increments psi(tau,t), that is to say from the differences between the instantaneous values phi(t) of the phase signal derived from the measured signal S(t) in a phase extractor (18) and values phi(t-tau) time-delayed by a delayed time tau, a coupling indicator value (KI) is formed in such a way that the existence of phase coupling with a further oscillator can be detected on the latter by means of comparison with a coupling reference value (KR).

    摘要翻译: 测量仪器,其测量原理基于振荡器,例如涡流计数器,并且其中布置有用于记录可以提供给评估单元(2)的测量信号(S(t))的传感器, 其特征在于,从相位增加psi(τ,t),也就是说,根据从相位提取器(18)中的测量信号S(t)导出的相位信号的瞬时值phi(t)之间的差, 并且以延迟时间τ延迟的值phi(t-τ),耦合指示符值(KI)以这样的方式形成,使得可以通过比较来检测与后一个振荡器的相位耦合的存在 具有耦合参考值(KR)。

    Coriolis mass flowmeter
    7.
    发明申请
    Coriolis mass flowmeter 有权
    科里奥利质量流量计

    公开(公告)号:US20050139015A1

    公开(公告)日:2005-06-30

    申请号:US10972693

    申请日:2004-10-26

    IPC分类号: G01F1/84

    摘要: Coriolis mass flowmeter with a measuring pipe (2) vibrating in coupled flexural and torsional modes, characterized in that an attachment (20) which is formed. rotationally symmetrically with respect to an axis of rotational symmetry and can be made to undergo torsional oscillations of the same frequency, but opposite phase, in relation to the torsional oscillating modes of the measuring pipe (2) is mechanically connected to the measuring pipe (2) and the axis of rotational symmetry of the attachment runs parallel to the straight line (8) (central axis) defined by the centre points (4a, 6a) of the cross-sectional areas (4, 6) of the inlet and outlet of the measured section or coincides with this line.

    摘要翻译: 具有测量管(2)的科里奥利质量流量计以耦合的弯曲和扭转模式振动,其特征在于,形成一个附件(20)。 相对于旋转对称轴旋转对称并且可以进行相同频率的扭转振荡,但相对于测量管(2)的扭转振荡模式的相反相位被机械地连接到测量管(2) )并且附件的旋转对称轴线平行于由入口的横截面区域(4,6)的中心点(4a,6a)限定的直线(8)(中心轴线),并且 测量部分的出口或与该线重合。

    Coriolis mass flowmeter
    8.
    发明授权
    Coriolis mass flowmeter 有权
    科里奥利质量流量计

    公开(公告)号:US07213470B2

    公开(公告)日:2007-05-08

    申请号:US10972693

    申请日:2004-10-26

    IPC分类号: G01F1/84

    摘要: Coriolis mass flowmeter with a measuring pipe (2) vibrating in coupled flexural and torsional modes, characterized in that an attachment (20) which is formed rotationally symmetrically with respect to an axis of rotational symmetry and can be made to undergo torsional oscillations of the same frequency, but opposite phase, in relation to the torsional oscillating modes of the measuring pipe (2) is mechanically connected to the measuring pipe (2) and the axis of rotational symmetry of the attachment runs parallel to the straight line (8) (central axis) defined by the center points (4a, 6a) of the cross-sectional areas (4, 6) of the inlet and outlet of the measured section or coincides with this line.

    摘要翻译: 科里奥利质量流量计,其具有以耦合的弯曲和扭转模式振动的测量管(2),其特征在于,相对于旋转对称轴线旋转对称地形成的附件(20),并且可以进行相同的扭转振动 频率相反,相对于测量管(2)的扭转振荡模式的相反相位机械地连接到测量管(2),附件的旋转对称轴平行于直线(8)(中心 轴线)由所测量部分的入口和出口的横截面区域(4,6)的中心点(4a,6a)限定,或与该线重合。

    Method for monitoring a measuring instrument, in particular a flow meter and a measuring device for carrying out said method
    9.
    发明申请
    Method for monitoring a measuring instrument, in particular a flow meter and a measuring device for carrying out said method 有权
    用于监测测量仪器的方法,特别是用于执行所述方法的流量计和测量装置

    公开(公告)号:US20060155515A1

    公开(公告)日:2006-07-13

    申请号:US10520564

    申请日:2003-06-17

    IPC分类号: G06F11/30

    CPC分类号: G01F25/0007

    摘要: The invention relates to a method for monitoring a measurement device, in particular a flow measurement device, and to a measurement device itself. In order in this case to reliably preclude measurement errors resulting from incorrect installation, the invention proposes that a characteristic variable is calculated from a time series s(t) of the measurement signal of a measurement device and is compared with previously recorded reference values, with this being used as the basis to automatically generate a message as to whether the measurement device has been installed correctly or incorrectly.

    摘要翻译: 本发明涉及一种用于监测测量装置,特别是流量测量装置以及测量装置本身的方法。 为了在这种情况下可靠地排除因安装不正确导致的测量误差,本发明提出根据测量装置的测量信号的时间序列s(t)计算特征变量,并将其与先前记录的参考值进行比较, 这被用作自动生成关于测量设备是否已正确安装或不正确的消息的基础。

    Method and apparatus for magneto-inductive flow measurement
    10.
    发明授权
    Method and apparatus for magneto-inductive flow measurement 失效
    用于磁感应流量测量的方法和装置

    公开(公告)号:US5905206A

    公开(公告)日:1999-05-18

    申请号:US862780

    申请日:1997-05-23

    IPC分类号: G01F1/60 G01F1/58

    CPC分类号: G01F1/60

    摘要: Magneto-inductive flow measurement using a pulsed and/or reversing pulsed constant field wherein the measurement voltage which is induced by the flow, running transversely with respect to the magnetic field, of the measurement medium in the measurement tube of the magneto-inductive flowmeter is sampled in each clock time interval when the coil current is applied, even if the magnetic field has not yet reached its steady-state. Empirically determined correction values are used to correct the samples to the situation when measurements are carried out with a steady-state magnetic field. Calibration measured values can be recorded in a steady-state magnetic field from time to time, in order to check and, if required, to correct the correction factors. The coil current can be switched at frequencies which alternate with one another in time, the number of periods of the mutually alternating period sequences being varied in an irregular manner.

    摘要翻译: 使用脉冲和/或反向脉冲恒定场的磁感应流量测量,其中由磁感应流量计的测量管中的测量介质在相对于磁场横向运行的流引起的测量电压为 即使磁场尚未达到其稳态,也在施加线圈电流的每个时钟间隔中采样。 经验确定的校正值用于将样本校正为当用稳态磁场进行测量时的情况。 校准测量值可以不时地记录在稳态磁场中,以便检查并根据需要校正校正因子。 线圈电流可以在时间上彼此交替的频率切换,相互交替的周期序列的周期数以不规则的方式变化。