公开(公告)号：EP2369367A1

公开(公告)日：2011-09-28

申请号：EP10157402.8

申请日：2010-03-23

Applicant: Siemens Milltronics Process Instruments Inc.

Inventor： Liu, Jing

IPC: G01S15/10 ,  G01S15/02 ,  G01S7/527 ,  G01F23/284

CPC classification number: G01S15/101 ,  G01F23/2962

Abstract: A method for measuring the distance to a near target comprises the steps of:
- transmitting, by means of a transducer, a sonic pulse to the target,
- receiving, by means of the transducer, reflected echoes (82, 83, 84, 85) from said target and converting them into an echo profile, and
- selecting one echo (e.g. 82) in the echo profile and determining the distance from the propagation time (T 82 ) of said selected echo (82).
In order to allow for near range measurement by an acoustic pulse-echo ranging system regardless of the blanking distance, the method further comprises the intermediate steps of:
- determining the propagation times (T 83 ) of at least one echo (e.g. 83) following or preceding the selected echo (82),
- determining from the ratio of the propagation times (T 82 , T 83 ) of the selected echo (82) and the at least one following or preceding echo (83) the number of reflections of the selected echo (82) at the target (7) and
- determining the distance as half the propagation time of said selected echo (82) times the sound velocity and divided by the number of reflections of the selected echo (82).

Abstract translation: 用于测量到近目标的距离的方法包括以下步骤： - 通过换能器将声音脉冲发送到目标， - 借助于换能器，接收反射回波（82,83,84,85 ）并将其转换成回波曲线，以及 - 在回波分布中选择一个回波（例如82）并确定与所述选择的回波（82）的传播时间（T 82）的距离。 为了允许通过声学脉冲 - 回波测距系统进行近距离测量，而不管消隐距离如何，该方法还包括以下中间步骤： - 确定至少一个回波（例如83）跟随的传播时间（T 83） 或在所选择的回波（82）之前， - 根据所选择的回波（82）的传播时间（T 82，T 83）与所述至少一个跟随或之前的回波（83）的比率来确定 在所述目标（7）处选择回波（82）;以及 - 将所述选择的回波（82）的所述传播时间的一半的距离确定为所述声速乘以所述声速，并除以所选择的回波（82）的反射次数。

公开(公告)号：EP2341406A1

公开(公告)日：2011-07-06

申请号：EP09180665.3

申请日：2009-12-23

Applicant: Siemens Milltronics Process Instruments Inc.

Inventor： Lomas, Adam

IPC: G05B19/042 ,  G05B19/05

CPC classification number: G05B19/0425 ,  G05B19/058 ,  G05B2219/23472 ,  G05B2219/25428 ,  G05B2219/31484

Abstract: In order to safely parameterize an electrical device (3), a parameter input by a user (1) on a control unit (2) is transmitted to the electrical device (3) and stored there with write protection, the stored parameter is transmitted back to the control unit (2) and displayed there for confirmation by the user (1), and the confirmation is transmitted to the electrical device (3),
According to the invention,
- the stored parameter is transmitted back together with the parameter's name and with a code generated by the device (3) and in a data format which is not processable by the control unit (2),
- the returned parameter, its name and the code are displayed for the user on the control unit (2), and
- the confirmation is checked in the electrical device (3) to determine whether it contains the code.

Abstract translation: 为了安全地参数化电气设备（3），由控制单元（2）上的用户（1）输入的参数被传送到电气设备（3）并且在那里存储有写保护，所存储的参数被传回 到控制单元（2）并显示在那里供用户（1）确认，并且确认被发送到电气设备（3）。根据本发明，存储的参数与参数的名称一起传送回来， 具有由所述设备（3）生成的代码并且以不能由所述控制单元（2）处理的数据格式， - 在所述控制单元（2）上为所述用户显示返回的参数，其名称和代码， 并且 - 在电气设备（3）中检查确认以确定其是否包含代码。

公开(公告)号：EP2045617B1

公开(公告)日：2010-12-01

申请号：EP07019146.5

申请日：2007-09-28

Applicant: Siemens Milltronics Process Instruments Inc.

Inventor： Serban, Gabriel

IPC: G01S7/03 ,  G01S7/292

CPC classification number: G01S7/2926 ,  G01S13/0209

公开(公告)号：EP1821117B1

公开(公告)日：2010-10-13

申请号：EP06003515.1

申请日：2006-02-21

Applicant: Siemens Milltronics Process Instruments Inc.

Inventor： Brown, Robert ,  Larocque, Jean-René

IPC: G01S7/527

CPC classification number: G01F23/284 ,  G01S7/5273

公开(公告)号：EP2128990A1

公开(公告)日：2009-12-02

申请号：EP08009751.2

申请日：2008-05-28

Applicant: Siemens Milltronics Process Instruments Inc.

Inventor： Wall, Graham

IPC: H03M1/68 ,  H03M1/82

CPC classification number: H03M1/68 ,  H03M1/822

Abstract: A method for converting an N-bit digital value into an analog value comprises:
- converting the N-M most significant bits of the digital value into a first PWM signal (PWM1) whose period is a multiple of a base time period,
- converting the M least significant bits of the digital value into a second PWM signal (PWM2) whose period is a 1/2 M fraction of the period of the first PWM signal (PWM1),
- generating a third PWM signal (PWM3) by inserting, during the pulse pause of the first PWM signal (PWM1), the pulse of a selected single period of the second PWM signal (PWM2) into the first PWM signal (PWM1), and
- low-pass filtering the third PWM signal (PWM3).

Abstract translation: 一种用于将N位数字值转换为模拟值的方法包括： - 将数字值的NM个最高有效位转换为其周期是基本时间段的倍数的第一PWM信号（PWM1）， - 将M 数字值的最低有效位转换成第二PWM信号（PWM2），其周期是第一PWM信号（PWM1）的周期的1/2分之一， - 通过在第一PWM信号（PWM3）期间插入，生成第三PWM信号（PWM3） 第一PWM信号（PWM1）的脉冲暂停，将第二PWM信号（PWM2）的选定的单个周期的脉冲变为第一PWM信号（PWM1），以及 - 对第三PWM信号（PWM3）进行低通滤波。

公开(公告)号：EP2116819A1

公开(公告)日：2009-11-11

申请号：EP08008780.2

申请日：2008-05-09

Applicant: Siemens Milltronics Process Instruments Inc.

Inventor： Taylor, Andrew

IPC: G01F23/284 ,  G01S13/08 ,  G01S13/88

CPC classification number: G01S13/08 ,  G01F23/284 ,  G01S13/88

Abstract: A radar-based method for measuring a level of material in a container
In a radar-based method for measuring a level of material in a container,
- microwaves are emitted to a surface of the material by means of a radar level gauge,
- echo waves reflected from the surface are received,
- the received echo waves are converted into an echo function (19) which is stored and evaluated to establish a useful echo (18) and to determine its position.
To save power and time,
- the echo function (19) is generated and stored with a first higher resolution for a selected first portion (20) of the entire level measurement range of the radar level gauge and
- the echo function is generated and stored with a second lower resolution or no echo function is generated and stored for the remaining second portion of the entire level measurement range.

Abstract translation: 用于测量容器中材料水平的基于雷达的方法在用于测量容器中的材料水平的基于雷达的方法中，通过雷达液位计将微波发射到材料的表面， - 回波 接收从表面反射的波， - 接收的回波被转换成回波函数（19），其被存储和评估以建立有用的回波（18）并确定其位置。 为了节省功率和时间， - 对于雷达液位计的整个级别测量范围的所选择的第一部分（20），生成并存储具有第一较高分辨率的回波功能（19），并且生成和存储回波功能 对于整个级别测量范围的剩余第二部分生成并存储第二较低分辨率或无回波功能。

公开(公告)号：EP1643222B1

公开(公告)日：2009-10-28

申请号：EP05109060.3

申请日：2005-09-30

Applicant: Siemens Milltronics Process Instruments Inc.

Inventor： McKeen, John ,  Serban, Gabriel

IPC: G01F23/284 ,  H01Q1/22 ,  H01P1/04 ,  H01Q13/02

CPC classification number: H01Q13/025 ,  G01F23/284 ,  H01P1/04 ,  H01Q1/22

公开(公告)号：EP2068169A1

公开(公告)日：2009-06-10

申请号：EP07023668.2

申请日：2007-12-06

Applicant: Siemens Milltronics Process Instruments Inc.

Inventor： Benari, Uri ,  Quinton Lyon, George ,  Serban, Gabriel

IPC: G01S7/40 ,  G01S13/10

CPC classification number: G01S7/4052 ,  G01S13/10 ,  G01S2007/4065 ,  G01S2007/4069

Abstract: To reduce measurement errors due to changes in the environment temperature of a pulse radar ranging system, the system has a measurement channel and a reference channel. In the measurement channel containing the antenna 7 and measurement target 8, the normal measurement is performed by processing the echo RX1 from the target 8. In the reference channel containing signal delay means 15, a reference echo RX2 is processed to obtain temperature compensation information.

Abstract translation: 为了减少由于脉冲雷达测距系统的环境温度变化引起的测量误差，系统具有测量通道和参考通道。 在包含天线7和测量对象8的测量通道中，通过处理来自目标8的回波RX1来执行正常测量。在包含信号延迟装置15的参考通道中，处理参考回波RX2以获得温度补偿信息。

公开(公告)号：EP2045617A1

公开(公告)日：2009-04-08

申请号：EP07019146.5

申请日：2007-09-28

Applicant: Siemens Milltronics Process Instruments Inc.

Inventor： Serban, Gabriel

IPC: G01S7/03 ,  G01S7/292

CPC classification number: G01S7/2926 ,  G01S13/0209

Abstract: In a pulse radar system where received echo pulses (RX) are expanded in time by multiplication with sampling pulses (S1) and subsequent integration, the effect of disturbances on the integration is reduced by using a sample and hold circuit (16) having a switch (17) and a hold capacitor (18) and wherein the switch (17) is closed only when a sampling pulse (sl) is applied for the multiplication.

Abstract translation: 在脉冲雷达系统中，通过与采样脉冲（S1）和随后的积分相乘，接收的回波脉冲（RX）在时间上扩展，通过使用具有开关的采样和保持电路（16）来减小干扰对积分的影响， （17）和保持电容器（18），并且其中开关（17）仅在对乘法进行采样脉冲（sl）时闭合。

公开(公告)号：EP2045586A1

公开(公告)日：2009-04-08

申请号：EP07019295.0

申请日：2007-10-01

Applicant: Siemens Milltronics Process Instruments Inc.

Inventor： Trafford, Mark

IPC: G01F23/296 ,  G01F23/284

CPC classification number: G01F23/284 ,  G01F23/2962

Abstract: It is known to measure the fill level of a material (3) by transmitting an ultrasonic or microwave signal (5) towards a surface (4) of the material (3) using a level gauge (1) arranged above the material surface (4), receiving in said level gauge (1) an ultrasonic or microwave signal portion reflected from said material surface (4), measuring a temperature at at least one measurement point (14) between the level gauge (1) and the material surface (4) and determining in a calculation unit (7) of the level gauge (1) a temperature-corrected value of the fill level based on the time delay of the received signal portion with respect to the emitted signal (5) and the measured temperature.
To provide an improved level measuring method and system with increased reactivity and accuracy in compensating temperature variations at least one non-contact infrared thermometer (13) is used to measure the temperature.

Abstract translation: 已知通过使用布置在材料表面（4）上方的液位计（1）向材料（3）的表面（4）传送超声波或微波信号（5）来测量材料（3）的填充水平 在所述液位计（1）中接收从所述材料表面（4）反射的超声波或微波信号部分，测量所述液位计（1）和所述材料表面（4）之间的至少一个测量点（14） ），并且基于所接收的信号部分相对于所发射的信号（5）的时间延迟和测量的温度，在液位计（1）的计算单元（7）中确定填充液位的温度校正值。 为了提供改进的水平测量方法和系统，其具有增加的反应性和补偿温度变化的精度，至少使用一个非接触式红外线温度计（13）来测量温度。