Method of determining a calibration or maintenance time interval

    公开(公告)号:US10901371B2

    公开(公告)日:2021-01-26

    申请号:US16593028

    申请日:2019-10-04

    发明人: Dimitri Vaissiere

    IPC分类号: G04F13/00 G01D18/00

    摘要: A method of determining a calibration or maintenance time interval after which a specific measurement device of a given type for measuring a quantity to be measured on a measurement site of an industrial site shall be re-calibrated or maintained is described, comprising the steps of: determining a criticality (C) of the specific device, based on the criticality (C) setting a reliability target (RT) for the device, wherein the reliability target (RT) denominates the probability of the device to be compliant according to a predefined criterion at the end of the calibration or maintenance time interval to be determined by this method, defining compliancy ranges for a measurable degree of compliance of the device, selecting a reliability model for a reliability of the device as a function of a normalized time interval (tn) and a set of at least one parameter (c1, . . . , cm) from a variety of predefined reliability models, determining a separate set of parameters for the selected reliability model for each of the compliancy ranges based on prescribed reliability expectation values (RV(tnpd)) for each of the error ranges, which a reliability function associated with this error range shall comply to at at least one predefined normalized time (tnpd), determining the degree of compliance of the specific measurement device and based on the degree of compliance determining the corresponding compliancy range, determining a normalized calibration or maintenance time (tn) as the time, at which a reliability function (R(tn)) given by the selected reliability model and the set of parameters determined for this compliancy range equals the reliability target (RT), and determining the next calibration or maintenance time interval based on a product of this normalized calibration or maintenance time (tn) and a given reference time interval (TR).

    System for monitoring the leak tightness of a tank
    2.
    发明授权
    System for monitoring the leak tightness of a tank 有权
    监测罐体密封性的系统

    公开(公告)号:US09410865B2

    公开(公告)日:2016-08-09

    申请号:US13994182

    申请日:2011-12-08

    摘要: A system for monitoring the leak-tightness of a tank, which is filled with a liquid with a lower density than water. The system has a liquid drain pipe, with a container that has a bottom, which is integrated horizontally in the liquid drain pipe with a damming element, which divides the container into a partial area on the supply flow side and partial area on the drain side. A first vibronic measuring device with a first vibrating unit protruding into the supply flow side partial area of the bottom determines whether the density of the medium undershoots a specified limit. A second vibronic measuring device with a second vibrating unit, at a position not exceeding the level of the first vibrating unit, which detects whether the vibrating unit are covered with medium, and with an evaluation unit uses the measured values of measuring devices to determine whether there is liquid from the tank in the container.

    摘要翻译: 一种用于监测罐的密封性的系统,其中填充有比水密度低的液体。 该系统具有排液管,容器具有底部,其水平地集成在排液管中,具有阻塞元件,该容器将容器分成供给流侧的一部分区域和排水侧的局部区域 。 具有突出到底部的供给流侧部分区域中的第一振动单元的第一振动测量装置确定介质的密度是否下冲到指定的极限。 具有第二振动单元的第二振动测量装置,在不超过第一振动单元的高度的位置,其检测振动单元是否被介质覆盖,并且使用评估单元,使用测量装置的测量值来确定是否 在容器中有罐中的液体。

    Calibration Method
    3.
    发明申请
    Calibration Method 审中-公开
    校准方法

    公开(公告)号:US20130030746A1

    公开(公告)日:2013-01-31

    申请号:US13558581

    申请日:2012-07-26

    申请人: Dimitri Vaissiere

    发明人: Dimitri Vaissiere

    IPC分类号: G01D18/00 G06F19/00

    CPC分类号: G01F25/00 G01D18/008

    摘要: A method of calibrating a measurement device, during which at least one given value of a quantity to be measured by the device is provided by a corresponding reference or standard. The indicated measurement indications and the corresponding given values of the measured quantity are recorded, at least one predefined characteristic property of at least one of the measurement indications is determined and compared to corresponding threshold range. Each threshold range was previously determined based on a statistically representative distribution of the values of the respective property determined based on measurement indications derived during execution of a statistically representative number of performances of measurements according to the respective operation procedure with measurement devices of the same type as the device under calibration. A potentially impaired measurement property of the device under calibration is indicated if at least one determined characteristic property exceeds the respective threshold.

    摘要翻译: 一种校准测量装置的方法,其中由装置测量的量的至少一个给定值由相应的参考或标准提供。 记录指示的测量指示和所测量的相应的给定值,确定至少一个测量指示的至少一个预定义特性,并与相应的阈值范围进行比较。 基于在根据相应的操作程序的统计代表性的测量性能执行期间导出的测量指示确定的相应属性的值的统计学上的代表性分布,先前确定每个阈值范围,其中测量装置的类型与 该设备在校准下。 如果至少一个确定的特征属性超过相应的阈值,则指示校准中的设备的潜在受损的测量属性。

    Monitoring means and monitoring method for monitoring at least one step of a process run on an industrial site

    公开(公告)号:US20170261972A1

    公开(公告)日:2017-09-14

    申请号:US15514856

    申请日:2015-08-19

    IPC分类号: G05B23/02

    摘要: Monitoring structure and a monitoring method for monitoring at least one step of a process performed on an industrial site is described, which allows prompt, reliable and efficient detection of disturbances based on readily available information, provided by the measurement results of the measurement devices involved in the performance of the step, and determined based on a model of the step, comprising primary models for the measurement devices comprising a basic function representing a time dependency of the measurement results of the device, a first property determined by best fitting the basic function to the measurement results obtained by the respective measurement device, a secondary model for each of the primary models, each comprising a second property given by a dispersion of residues between the measurement results obtained by the respective measurement device and the corresponding fitted function, and tertiary models for those pairs of measurement devices, which render correlated measurement results during faultless performance of the respective step, each tertiary model comprising a third property, given by a degree of correlation between simultaneously obtained measurement results of the respective pair of measurement devices during performance of the respective step, and a reference range for each of the properties, comprising a range within which the respective property is expected to occur during faultless performance of the step.

    Method of determining a calibration or maintenance time interval

    公开(公告)号:US10539930B2

    公开(公告)日:2020-01-21

    申请号:US14247639

    申请日:2014-04-08

    发明人: Dimitri Vaissiere

    IPC分类号: G04F13/00 G01D18/00

    摘要: A method of determining a calibration or maintenance time interval, comprising the steps of: determining a criticality of the specific device, based on the criticality setting a reliability target for the device, wherein the reliability target denominates the probability of the device to be compliant according to a predefined criterion at the end of the calibration or maintenance time interval; defining compliancy ranges for a measurable degree of compliance of the device; selecting a reliability model for a reliability of the device as a function of a normalized time interval and a set of at least one parameter from a variety of predefined reliability models, determining a separate set of parameters for the selected reliability model for each of the compliancy ranges based on prescribed reliability expectation values for each of the error ranges, which a reliability function associated with this error range shall comply to at at least one predefined normalized time, determining the degree of compliance of the specific measurement device and based on the degree of compliance determining the corresponding compliancy range; determining a normalized calibration or maintenance time as the time, at which a reliability function given by the selected reliability model and the set of parameters determined for this compliancy range equals the reliability target; and determining the next calibration or maintenance time interval based on a product of this normalized calibration or maintenance time and a given reference time interval.

    Method of determining a calibration time interval for a calibration of a measurement device
    6.
    发明授权
    Method of determining a calibration time interval for a calibration of a measurement device 有权
    确定测量装置的校准的校准时间间隔的方法

    公开(公告)号:US09354091B2

    公开(公告)日:2016-05-31

    申请号:US14363871

    申请日:2012-11-22

    发明人: Dimitri Vaissiere

    摘要: A method of determining a calibration time interval for a calibration of a measurement device for measuring a quantity to be measured, which allows a safe optimization of calibration time intervals between consecutive calibrations. Performing a first calibration of the device at a first calibration time; adjusting, repairing or replacing the device and restarting the method from the beginning in case the first measurement error exceeds a predetermined error range including zero; performing a second calibration of the device at a second calibration time, adjusting, repairing or replacing the device and restarting the method from the beginning in case the second measurement error exceeds a maximum permissible error; determining the calibration time, at which a third calibration of the device shall be performed, and which is determined based on the first and the second measurement error, a probability density function for determining a measurement error of the device solely due to a calibration uncertainty inherent to the first calibration, a probability density function for determining a measurement error of the device solely due to a calibration uncertainty inherent to the second calibration, and the first and the second calibration time.

    摘要翻译: 确定用于测量待测量的测量装置的校准的校准时间间隔的方法,其允许连续校准之间的校准时间间隔的安全优化。 在第一次校准时间内执行设备的第一次校准; 在第一测量误差超过包括零的预定误差范围的情况下,从开始调整,修理或更换设备并重新开始该方法; 在第二校准时间执行设备的第二校准,在第二测量误差超过最大允许误差的情况下,调整,修理或更换设备并从开始重新启动该方法; 确定应执行装置的第三次校准并且基于第一和第二测量误差确定的校准时间,用于仅由校准不确定性固有地确定装置的测量误差的概率密度函数 第一校准,用于仅由于第二校准固有的校准不确定度以及第一和第二校准时间来确定器件的测量误差的概率密度函数。

    Method of Determining a Calibration or Maintenance Time Interval
    7.
    发明申请
    Method of Determining a Calibration or Maintenance Time Interval 审中-公开
    确定校准或维护时间间隔的方法

    公开(公告)号:US20140338420A1

    公开(公告)日:2014-11-20

    申请号:US14247639

    申请日:2014-04-08

    发明人: Dimitri Vaissiere

    IPC分类号: G04F13/00

    CPC分类号: G04F13/00 G01D18/006

    摘要: A method of determining a calibration or maintenance time interval, comprising the steps of: determining a criticality of the specific device, based on the criticality setting a reliability target for the device, wherein the reliability target denominates the probability of the device to be compliant according to a predefined criterion at the end of the calibration or maintenance time interval; defining compliancy ranges for a measurable degree of compliance of the device; selecting a reliability model for a reliability of the device as a function of a normalized time interval and a set of at least one parameter from a variety of predefined reliability models, determining a separate set of parameters for the selected reliability model for each of the compliancy ranges based on prescribed reliability expectation values for each of the error ranges, which a reliability function associated with this error range shall comply to at at least one predefined normalized time, determining the degree of compliance of the specific measurement device and based on the degree of compliance determining the corresponding compliancy range; determining a normalized calibration or maintenance time as the time, at which a reliability function given by the selected reliability model and the set of parameters determined for this compliancy range equals the reliability target; and determining the next calibration or maintenance time interval based on a product of this normalized calibration or maintenance time and a given reference time interval.

    摘要翻译: 一种确定校准或维护时间间隔的方法,包括以下步骤:基于所述临界度设置所述设备的可靠性目标来确定所述特定设备的关键性,其中所述可靠性目标符合所述设备符合的概率, 到校准或维护时间间隔结束时的预定标准; 确定装置的可测量程度的符合范围; 根据来自各种预定义的可靠性模型的归一化时间间隔和一组至少一个参数选择可靠性设备的可靠性模型,为每个合规性确定所选可靠性模型的单独参数集合 基于每个误差范围的规定的可靠性期望值的范围,与该误差范围相关联的可靠性函数应符合至少一个预定义的标准化时间,确定特定测量装置的顺应程度并基于 确定相应的合规范围; 将归一化的校准或维护时间确定为由所选择的可靠性模型给出的可靠性函数和为该合格范围确定的参数集合等于可靠性目标的时间; 以及基于该归一化校准或维护时间与给定参考时间间隔的乘积来确定下一个校准或维护时间间隔。

    MEASURING DEVICE FOR DETERMINING AND/OR MONITORING AT LEAST ONE PROCESS VARIABLE
    8.
    发明申请
    MEASURING DEVICE FOR DETERMINING AND/OR MONITORING AT LEAST ONE PROCESS VARIABLE 有权
    用于确定和/或监控至少一个过程的测量装置可变

    公开(公告)号:US20130263666A1

    公开(公告)日:2013-10-10

    申请号:US13994182

    申请日:2011-12-08

    IPC分类号: G01M3/00

    摘要: A system for monitoring the leak-tightness of a tank, which is filled with a liquid with a lower density than water. The system has a liquid drain pipe, with a container that has a bottom, which is integrated horizontally in the liquid drain pipe with a damming element, which divides the container into a partial area on the supply flow side and partial area on the drain side. A first vibronic measuring device with a first vibrating unit protruding into the supply flow side partial area of the bottom determines whether the density of the medium undershoots a specified limit. A second vibronic measuring device with a second vibrating unit, at a position not exceeding the level of the first vibrating unit, which detects whether the vibrating unit are covered with medium, and with an evaluation unit uses the measured values of measuring devices to determine whether there is liquid from the tank in the container.

    摘要翻译: 一种用于监测罐的密封性的系统,其中填充有比水密度低的液体。 该系统具有排液管,容器具有底部,其水平地集成在排液管中,具有阻塞元件,该容器将容器分成供给流侧的一部分区域和排水侧的局部区域 。 具有突出到底部的供给流侧部分区域中的第一振动单元的第一振动测量装置确定介质的密度是否下冲到指定的极限。 具有第二振动单元的第二振动测量装置,在不超过第一振动单元的高度的位置,其检测振动单元是否被介质覆盖,并且使用评估单元,使用测量装置的测量值来确定是否 在容器中有罐中的液体。