公开(公告)号：US20100161251A1

公开(公告)日：2010-06-24

申请号：US12449308

申请日：2008-02-13

申请人： Sascha D'Angelico ,  Franco Ferraro ,  Jurgen Meier ,  Alexander Muller ,  Walter Rombach

发明人： Sascha D'Angelico ,  Franco Ferraro ,  Jurgen Meier ,  Alexander Muller ,  Walter Rombach

IPC分类号： G01N11/00

CPC分类号： G01N11/16 ,  G01F23/2967 ,  G01N9/002 ,  G01N2009/006

摘要： Method for determining and/or monitoring a process variable of a medium, wherein a mechanically oscillatable unit is supplied with an exciter signal wherein a received signal coming from the mechanically oscillatable unit is received, and wherein the exciter signal is produced in such a manner, that a phase difference between the exciter signal and the received signal equals a predeterminable phase value. A criterion for judging the determining of the phase difference between the exciter signal and the received signal, or a signal dependent on the exciter signal or on the received signal, is established; in the case, in which the criterion for judging the determining of the phase difference is fulfilled, tuning of the phase difference is closed-loop controlled; and, in the alternative case, tuning of the phase difference is open-loop controlled. An apparatus associated with the method is also disclosed.

摘要翻译： 用于确定和/或监视介质的过程变量的方法，其中向机械振荡单元提供激励器信号，其中接收到来自机械振荡单元的接收信号，并且其中以这种方式产生激励器信号， 激励器信号和接收信号之间的相位差等于可预定的相位值。 确定用于判断激励器信号和接收信号之间的相位差的判定标准，或者依赖于激励器信号或接收信号的信号。 在满足判断相位差判定基准的情况下，相位差的调谐是闭环控制的， 并且在替代情况下，相位差的调谐是开环控制的。 还公开了与该方法相关联的装置。

公开(公告)号：US08442782B2

公开(公告)日：2013-05-14

申请号：US12449308

申请日：2008-02-13

申请人： Jürgen Meier ,  Alexander Müller ,  Sascha D'Angelico ,  Franco Ferraro ,  Walter Rombach

发明人： Jürgen Meier ,  Alexander Müller ,  Sascha D'Angelico ,  Franco Ferraro ,  Walter Rombach

IPC分类号： G01F17/00 ,  G01F23/00 ,  G01L7/00 ,  G01N11/00 ,  G01R13/00 ,  G01R29/26

CPC分类号： G01N11/16 ,  G01F23/2967 ,  G01N9/002 ,  G01N2009/006

摘要： A method for determining and/or monitoring a process variable of a medium, wherein a mechanically oscillatable unit is supplied with an exciter signal wherein a received signal coming from the mechanically oscillatable unit is received, and wherein the exciter signal is produced in such a manner, that a phase difference between the exciter signal and the received signal equals a predeterminable phase value. A criterion for judging the determining of the phase difference between the exciter signal and the received signal, or a signal dependent on the exciter signal or on the received signal, is established; in the case, in which the criterion for judging the determining of the phase difference is fulfilled, tuning of the phase difference is closed-loop controlled; and, in the alternative case, tuning of the phase difference is open-loop controlled. An apparatus associated with the method is also disclosed.

摘要翻译： 一种用于确定和/或监测介质的过程变量的方法，其中向机械振荡单元提供激励器信号，其中接收到来自机械振荡单元的接收信号，并且其中以这种方式产生激励器信号 激励器信号和接收信号之间的相位差等于可预定的相位值。 建立用于判断激励器信号和接收信号之间的相位差的确定的标准，或者取决于激励器信号或接收信号的信号。 在满足判断相位差判定基准的情况下，相位差的调谐是闭环控制的， 并且在替代情况下，相位差的调谐是开环控制的。 还公开了与该方法相关联的装置。

公开(公告)号：US08316711B2

公开(公告)日：2012-11-27

申请号：US12309831

申请日：2007-06-28

申请人： Alexander Müller ,  Sascha D'Angelico ,  Walter Rombach

发明人： Alexander Müller ,  Sascha D'Angelico ,  Walter Rombach

IPC分类号： G01H1/00

CPC分类号： G01F23/2967

摘要： An apparatus including: a mechanically oscillatable unit; an exciting/receiving unit; and an electronics unit having an input amplifier and an output amplifier. The amplification factors of the output amplifier and the input amplifier are tunable. The control unit tunes the amplification factor of the output amplifier as a function of damping of the mechanically oscillatable unit in such a manner that the amplitude of the electrical, input signal lies within an amplitude band and that the amplification factor of the output amplifier decreases in the case of lessened damping by the medium and increases in the case of greater damping by the medium, and the control unit tunes the amplification factor of the output amplifier and the amplification factor of the input amplifier in such a manner that the total amplification factor of the electronics unit equals a predeterminable value.

摘要翻译： 一种装置，包括：机械振荡单元; 一个激动/接收单元; 以及具有输入放大器和输出放大器的电子单元。 输出放大器和输入放大器的放大系数是可调谐的。 控制单元以这样的方式调节输出放大器的放大系数作为机械振荡单元的阻尼的函数，使得电输入信号的幅度处于振幅带内，并且输出放大器的放大系数降低 通过介质减小阻尼的情况，并且在介质更大的阻尼的情况下增加的情况，并且控制单元以这样的方式调节输出放大器的放大系数和输入放大器的放大系数，使得总放大系数 电子单元等于可预定的值。

公开(公告)号：US20100043554A1

公开(公告)日：2010-02-25

申请号：US12309831

申请日：2007-06-28

申请人： Sascha D' Angelico ,  Alexander Muller ,  Walter Rombach

发明人： Sascha D' Angelico ,  Alexander Muller ,  Walter Rombach

IPC分类号： G01N29/02 ,  G01N11/16 ,  G01F23/00 ,  G01R1/30

CPC分类号： G01F23/2967

摘要： An apparatus including: a mechanically oscillatable unit; an exciting/receiving unit; and an electronics unit having an input amplifier and an output amplifier. The amplification factors of the output amplifier and the input amplifier are tunable. The control unit tunes the amplification factor of the output amplifier as a function of damping of the mechanically oscillatable unit in such a manner that the amplitude of the electrical, input signal lies within an amplitude band and that the amplification factor of the output amplifier decreases in the case of lessened damping by the medium and increases in the case of greater damping by the medium, and the control unit tunes the amplification factor of the output amplifier and the amplification factor of the input amplifier in such a manner that the total amplification factor of the electronics unit equals a predeterminable value.

摘要翻译： 一种装置，包括：机械振荡单元; 一个激动/接收单元; 以及具有输入放大器和输出放大器的电子单元。 输出放大器和输入放大器的放大系数是可调谐的。 控制单元以这样的方式调节输出放大器的放大系数作为机械振荡单元的阻尼的函数，使得电输入信号的幅度处于振幅带内，并且输出放大器的放大系数降低 通过介质减少阻尼的情况，并且在介质更大的阻尼的情况下增加的情况，并且控制单元以这样的方式调节输出放大器的放大系数和输入放大器的放大系数，使得总放大系数 电子单元等于可预定的值。