公开(公告)号：EP3115754A1

公开(公告)日：2017-01-11

申请号：EP15195850.1

申请日：2015-11-23

Applicant: ABB Schweiz AG

Inventor： Lenner, Miklos ,  Pape, Detlef ,  Kaufmann, Tobias

IPC: G01F23/296 ,  G01S15/10 ,  G01F25/00 ,  G01S7/539

CPC classification number: G01F23/2962 ,  G01F25/0061 ,  G01S7/527 ,  G01S7/539 ,  G01S15/101

Abstract: A system and a method for non-intrusive and continuous level measurement of a liquid are presented, where the liquid is enclosed by a solid wall of a horizontally lying, cylindrical vessel (20). The system comprises an ultrasonic transducer (x1) mounted at the outside of the vessel wall for generating an ultrasound wave and for emitting it into the vessel wall, and at least one electronic control and data processing unit (6) for controlling operation of the transducer (x1) and for determining the liquid level (H) from a time of flight of the ultrasound wave. The transducer (x1) is a frequency-tunable transducer which is arranged to emit the ultrasound wave as a primary Lamb wave (s1, s2) into the vessel wall so that a part of the primary Lamb wave leaks from the vessel wall into the liquid (22) in form of a pressure wave (s3, s4). The at least one electronic control and data processing unit (6) is adapted to change the ultrasonic frequency of the transducer (x1) until the transducer receives a reflection of the emitted ultrasound wave in form of a reflection of the pressure wave (s3, s4), determine the corresponding time of flight, and determine the liquid level (H) from the time of flight and from a corresponding and predetermined travel length of the emitted and reflected ultrasound wave, taking into account a predetermined speed of sound in the wall, a predetermined speed of sound in the liquid, a geometric dimension of the cross section of the vessel (20) and the fact that the travel length must include a passage where the pressure wave (s3, s4) is reflected by the vessel wall in a perpendicular upward direction to the surface of the liquid (21).

Abstract translation: 的系统和用于液体的非侵入式和连续电平测量的方法被呈现，其中，所述液体由水平放置的，圆柱形容器（20）的实心壁包围。 该系统的超声换能器（X1）的包括安装在容器壁为超声波的产生的外部，并用于发射它进入血管壁，以及至少一个电子控制和数据处理单元（6），用于控制操作的换能器的 （X1）和用于确定性从采矿的超声波的飞行时间中的液位（H）。 所述换能器（X1）是一个频率可调换能器的所有其被布置成发射的超声波作为主兰姆波（S1，S2）到血管壁中，从而没有从所述血管壁的主要Lamb波泄漏的一部分到液体 在压力波的形式（22）（S3，S4）。 该至少一个电子控制和数据处理单元（6）是angepasst改变换能器（X1）的超声频率，直到换能器接收所述压力波的反射波的形式发射的超声波的反射（S3，S4 ），确定性矿的飞行，并且确定性矿对应的时间的液面（H）从飞行时间和从所发射的和反射的超声波的相应的和预定的行程长度，同时考虑到在壁的声音的预定速度， 声音在液体中的预定速度时，所述容器（20）的横截面的几何尺寸和factthat行程长度必须包括其中的压力波（S3，S4）是由在血管壁反射的通道 垂直向上的方向向液体（21）的表面上。

公开(公告)号：EP3115753A1

公开(公告)日：2017-01-11

申请号：EP15195777.6

申请日：2015-11-23

Applicant: ABB Schweiz AG

Inventor： Kassubek, Frank ,  Lenner, Miklos ,  Kaufmann, Tobias ,  Pape, Detlef

IPC: G01F23/296 ,  G01S7/52 ,  G01S7/539 ,  G01S15/32 ,  G01S15/88

CPC classification number: G01F23/2962 ,  G01B17/00 ,  G01H5/00 ,  G01N29/024 ,  G01N29/041 ,  G01N29/222 ,  G01N2291/011 ,  G01N2291/02836 ,  G01N2291/02854 ,  G01N2291/0427 ,  G01N2291/102 ,  G01S7/52004 ,  G01S7/536 ,  G01S7/539 ,  G01S15/003 ,  G01S15/32 ,  G01S15/88

Abstract: A system and a method for non-intrusive and continuous level measurement of a liquid are described, where the liquid is enclosed by a solid wall of a vessel (41). The system comprises an ultrasonic transmitter (48) for generating an ultrasound wave and for emitting it into the vessel wall, an ultrasonic receiver (49) for receiving the ultrasound wave through the vessel wall, and at least one electronic control and data processing unit (6) for controlling operation of the transmitter (48) and of the receiver (49) and for determining the liquid level (H) from a time of flight of the ultrasound wave. The transmitter (48) is a frequency-tunable transmitter which is placed at a first position at the outside of the vessel wall and below the level of the liquid surface (44) in such a way that the transmitter (48) is able to emit the ultrasound wave as a primary Lamb wave into the vessel wall so that a part of the primary Lamb wave leaks from the vessel wall into the liquid in form of a pressure wave (43) in an inclined and upward direction towards the liquid surface (44). The receiver (49) is placed at a second position at the outside of the vessel wall and below the level of the liquid surface (44) in such a way that the receiver (49) is able to receive a secondary Lamb wave which is generated by the pressure wave (43, 45) hitting the vessel wall after having been reflected by the liquid surface (44). The at least one electronic control and data processing unit (6) is adapted to repeatedly determine the time of flight (t) of the pressure wave (43, 45), change the ultrasonic frequency (f) of the transmitter (48) until the determined time of flight reaches a minimum (tmin), and determine the liquid level (H) based on the relationship that the minimum time of flight (tmin) equals the length of the travel path of the pressure wave (43, 45) divided by the speed of the pressure wave in the liquid (cL).

Abstract translation: 的系统和用于液体的非侵入式和连续电平测量的方法被描述，其中，所述液体由容器（41）的实心壁包围。 该系统包括（对于在超声波产生和发射它到血管壁中以超声接收器（49），用于通过血管壁接收超声波的超声波发射器（48），和至少一个电子控制和数据处理单元 6），用于控制操作的发射器（48）和接收器（49）和用于从所述超声波的飞行时间确定性采矿液位（H）。 发射机（48）是一个频率可调发射机所有这一切都在第一位置在寻求一种方式并发送器（48）放置在血管壁的外部和下面的液体表面（44）的电平是能够发射 超声波作为主兰姆波到血管壁中，从而没有从所述血管壁的主要Lamb波泄漏的一部分成在倾斜和向上的方向朝向液体表面的压力波（43）的形式，所述液体（44 ）。 所述接收器（49）在第二位置在寻求一种方式做了接收器（49）放置在血管壁的外部和下面的液体表面（44）的电平是能够接收次级兰姆波所有其中产生 由压力波（43，45）撞击由所述液体表面（44）反射之后的血管壁。 该至少一个电子控制和数据处理单元（6）是angepasst反复确定性矿的压力波（43，45）的飞行（t）中的时间，改变超声波频率（f）的发射机（48），直到的 的飞行确定性开采时间到达基于该关系的最小（T min），以及确定性矿液面（H）那样的飞行（T min），将最小时间等于压力波的行进路径的长度（43，45）除以 在液体（CL）中的压力波的速度。

公开(公告)号：EP3115779A1

公开(公告)日：2017-01-11

申请号：EP15196352.7

申请日：2015-11-25

Applicant: ABB Schweiz AG

Inventor： Lenner, Miklos ,  Kassubek, Frank ,  Pape, Detlef ,  Kaufmann, Tobias

IPC: G01N29/024 ,  G01F23/296 ,  G01S7/40 ,  G01S13/88 ,  G01S15/88

CPC classification number: G01F23/284 ,  G01F23/2962 ,  G01F23/2968 ,  G01F25/0061 ,  G01H5/00 ,  G01N29/024 ,  G01N29/222 ,  G01N2291/011 ,  G01N2291/02836 ,  G01S7/40 ,  G01S7/52006 ,  G01S7/539 ,  G01S13/003 ,  G01S13/10 ,  G01S13/878 ,  G01S13/88 ,  G01S15/003 ,  G01S15/10 ,  G01S15/878 ,  G01S15/88 ,  G01S2013/462

Abstract: A system and a method for measuring a signal propagation speed in a liquid (2) contained in a vessel (1) or in a gaseous medium (4) contained in the same vessel (1) above the surface of the liquid (3) are proposed. At least one transmitter (x1) is arranged to transmit a first signal in a first direction which is at an acute or right angle to a first reflective surface (3; 6) and along which a variation or a gradient in the signal propagation speed is expected, wherein the first reflective surface (3; 6) reflects the first signal so that it travels in a second direction is received by a first acoustic or electromagnetic receiver (x1, x4). The at least one transmitter (x1, x3) is further arranged to transmit a second signal in a predetermined third direction which is at an acute angle (α) to the first direction, where the first or a second reflective surface (3; 6) reflects the second signal so that it travels in a predetermined and angular fourth direction with respect to the first or second reflective surface (3; 6) and is received by the first or a second acoustic or electromagnetic receiver (x1, x2, x4, x5). The speed of sound is then determined under the assumption that both the first and the second signals travel at the same average speed. The determination is based on a first time of flight (t1) of the first signal, a second time of flight (t2) of the second signal and a corresponding known first and second distance, wherein the first and second distance are different from each other and are either a distance between the first and the second receiver or a known geometric dimension (D) of the vessel.

Abstract translation: 的系统和用于在液体测量的信号传播速度的方法（2）包含在容器（1）或在气态介质（4）包含在相同的容器（1）中的液体的表面上方（3）是 建议。 至少一个发射器（X1）被布置成发射在第一方向上的所有的第一信号，该信号是在以锐角或直角的第一反射表面（3,6），并沿其中在信号传播速度的变化或梯度是 预期，worin第一反射表面（3; 6）反射第一信号所以完全其行进在由第一声音或电磁接收器（X1，X4）接收的第二方向。 所述至少一个发射器（X1，X3）还布置成发送在预定的第三方向上的第二信号，该信号在上锐角（±）于第一方向，其中所述第一或第二反射表面（3; 6） 反射第二信号，从而做到了在预定的和角第四方向行进相对于所述第一或第二反射表面（3,6），并通过第一或第二声音或电磁接收器接收的（X1，X2，X4，X5 ）。 声音的速度是然后确定性开采下的假设那样。第一和第二信号以相同的平均速度行驶。 所述确定是基于所述第一信号，所述第二信号的飞行（T2）的第二时间的飞行（T1）的第一时间和对应的已知的第一和第二距离，所述worin第一和第二距离是从海誓山盟不同 的，可以是在容器的第一和第二接收器或已知的几何尺寸（D）之间的距离。

公开(公告)号：EP3115755A1

公开(公告)日：2017-01-11

申请号：EP15196208.1

申请日：2015-11-25

Applicant: ABB Schweiz AG

Inventor： Lenner, Miklos ,  Pape, Detlef ,  Kaufmann, Tobias

IPC: G01F23/296 ,  G01N29/024 ,  G01S7/40 ,  G01S7/52 ,  G01S13/87 ,  G01S13/88 ,  G01S15/87 ,  G01S15/88

CPC classification number: G01F23/2962 ,  G01F23/2968 ,  G01H5/00 ,  G01N29/024 ,  G01N2291/011 ,  G01N2291/02836 ,  G01S7/52006 ,  G01S7/539 ,  G01S15/10 ,  G01S15/878 ,  G01S15/88

Abstract: A system and a method for measuring a speed of sound in a liquid (22, 32, 42) contained in a vessel (21, 31, 41) or in a gaseous medium (53) contained in the same vessel (51) above the surface of the liquid are proposed, wherein the method comprises the steps
• transmitting a first acoustic signal (29, 39, 49, 59) into the liquid (22, 32, 42) or into the gaseous medium (52) to travel inside a first travelling plane,
• receiving the first acoustic signal,
• emitting a second acoustic signal (20, 30, 40, 50) in form of an acoustic wave into the wall of the vessel (21, 31, 41, 51) to travel inside the wall of the vessel along a perimeter of the first travelling plane until it is received
• obtaining a first time of flight of the first acoustic signal and a second time of flight of the second acoustic signal;
• obtaining a speed of sound in the vessel wall from a data memory;
• determining the perimeter of the first travelling plane from the speed of sound in the vessel wall and from the second time of flight,
• determining the length of the travelling path of the first acoustic signal (29, 39, 49, 59) from the perimeter of the first travelling plane and from an information on the geometric shape of the first travelling plane,
• determining the speed of sound in the liquid or in the gaseous medium from the length of the travelling path of the first acoustic signal (29, 39, 49, 59) and from the first time of flight.

Abstract translation: 一种系统，和用于测量的声音的速度在液体中的方法（22，32，42）包含在一个容器（21，31，41）或在气态介质中包含在上述相同的容器（51）（53） 的液体的表面，提出了，worin该方法包括以下步骤€¢发送第一声学信号（29，39，49，59）到所述液体（22，32，42）或到气态介质（52）内行进 第一行驶面，€¢接收第一声学信号，€¢发射中的声波的形式的第二声学信号（20，30，40，50）到容器的壁（21，31，41，51） 沿第一行进平面的周界的容器的壁的内侧行进，直到其被接收€¢获取的第一声学信号与第二声学信号的飞行的第二时间的飞行的第一时间; €¢获取声音在从数据存储器中的血管壁的速度; €从声音在血管壁和从第二行程时间的速度¢确定性采矿第一行进平面的周边，€¢确定性采矿第一声学信号的传播路径的长度（29，39，49，59） 从所述第一行驶面和从平面到在第一行程灵€的几何形状信息的周边¢确定性采矿声速在液相或在从第一声学信号的传播路径的长度的气体介质（ 29，39，49，59）和从第一行程时间。