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公开(公告)号：US10670705B2
公开(公告)日：2020-06-02
申请号：US15506784
申请日：2015-07-16
发明人： Alexey Malinovskiy
摘要： A method for processing a measurement signal that is captured by a measuring device, wherein, in order to capture the measurement signal, the measuring device emits a transmission signal and receives a component of the transmission signal that is reflected by an object as a reception signal, wherein a first phase difference between a first target phase position and a first actual phase position contained in the measurement signal is determined, and wherein a second phase difference between a second target phase position and a second actual phase position contained in the measurement signal is determined, and a phase difference progression in the form of an, in particular, linear, functional relationship is determined on the basis of the first and the second phase differences, and a measured value is determined by means of the functional relationship.
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公开(公告)号：US10295394B2
公开(公告)日：2019-05-21
申请号：US14366310
申请日：2012-11-22
IPC分类号： G01F23/296 , G01F23/284
摘要： A method for measuring fill level and a measuring device for performing the method, wherein, in measuring cycles following one after the other, signal pulses of predetermined frequency sent by means of a transmitting and receiving system with a predetermined repetition frequency into a container, and their signal components reflected back in the container in the direction of the transmitting and receiving system after a travel time dependent on their traveled path, are received as received signal. A fill level is measured taking into consideration a phase relationship between the transmitted and received signals related physically with the fill level to be measured. In each measuring cycle, based on the received signal, an auxiliary signal is derived reflecting amplitude and phase information in the received signal as a function of travel time, based on the auxiliary signal, a travel time of a signal fraction reflected on a surface of the substance is determined as fundamental travel time are determined, based on the travel times of the zero crossings of the auxiliary signals determined in the current and in a plurality of preceding measuring cycles, a phase appearance-frequency distribution is derived as a function of travel time, which gives appearance-frequencies, with which zero crossings were present on the respective travel times in the associated auxiliary signals, a travel time of a maximum of the frequency distribution lying nearest the fundamental travel time is determined as fill level travel time, and the fill level is determined based on the fill level travel time.
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公开(公告)号：US10215609B2
公开(公告)日：2019-02-26
申请号：US14404091
申请日：2013-05-21
IPC分类号： G01F23/00 , G01F23/28 , G01F23/284 , G01F23/296
摘要： A method for measuring fill level of a fill substance. Transmission signals are sent and their fractions reflected on reflectors in the container and received as received signals. Based on the received, echo functions are derived and wanted echos of predetermined wanted echo types respectively contained in the echo functions and identifiable based on predetermined echo recognition methods are ascertained. Each wanted echo is a local maximum and is attributable to a reflection on a reflector associated with its wanted echo type. Echo quality of each wanted echo is determined. The echo quality is higher, the more peak shaped the echo function is in the region of the respective wanted echo, and the fill level is determined taking into consideration echo qualities of the wanted echos.
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4.发明申请公开(公告)号：US20180164145A1
公开(公告)日：2018-06-14
申请号：US15577910
申请日：2016-05-23
IPC分类号： G01F25/00 , G01F23/284 , G01S13/88
CPC分类号： G01F25/0076 , G01F23/284 , G01F25/0061 , G01S7/4004 , G01S7/4056 , G01S13/88
摘要： A method for checking the functional ability of an FMCW-based fill-level measuring device, which serves for measuring the fill level of a fill substance located in a container, as well as to a fill-level measuring device suitable for performing this method. For checking the functional ability, a microwave signal is produced, whose frequency change differs from the frequency change of the measurement signal used during regular measurement operation. By comparing the frequency of the difference signal resulting from the microwave signal with a predetermined reference frequency, it is ascertained, whether the fill-level measuring device is functionally able. Thus, the fill-level measuring device detects, independently, whether it is functionally able, or whether an error is present, caused principally by device-internal disturbance signals. This offers, especially, a clear advantage as regards meeting safety standards for the field device.
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公开(公告)号：US20160202347A1
公开(公告)日：2016-07-14
申请号：US14910786
申请日：2014-07-08
IPC分类号： G01S7/35 , G01F23/284
CPC分类号： G01S7/352 , G01F23/284 , G01S7/354 , G01S7/40 , G01S13/343 , G01S13/88
摘要： A radar measurement apparatus works according to the FMCW principle and includes a radar transmission unit, and a radar receiving unit, which is designed to receive a radar received signal reflected on a surface of the medium or other target in a pipe or tube, to convert the received signal into an intermediate frequency signal by mixing with the transmission signal, or a signal derived therefrom, and based on an intermediate signal to determine distance to the surface of the medium or other target. The radar receiving unit applies a phase correction to the intermediate signal produces a phase corrected, intermediate frequency signal, wherein the phase correction lessens or removes a dispersion dependent phase fraction in the phase of the intermediate signal and adds a non-dispersion effects dependent phase fraction. The radar receiving unit is designed based on the phase corrected intermediate signal to determine the target frequency components in the intermediate frequency signal and based on the target frequency components to determine distance to the surface of the medium or other radar.
摘要翻译： 雷达测量装置根据FMCW原理工作，并包括雷达传输单元和雷达接收单元，其被设计为接收在管或管中介质或其他目标表面上反射的雷达接收信号，以转换 通过与传输信号或从其导出的信号混合而将接收的信号转换成中频信号，并且基于中间信号来确定到介质或其它目标的表面的距离。 雷达接收单元对中间信号进行相位校正，产生相位校正的中频信号，其中相位校正减轻或去除中间信号相位中的相关分散相位分数，并且增加非分散效应相关分数 。 雷达接收单元是基于相位校正的中间信号来设计的，以确定中频信号中的目标频率分量，并且基于目标频率分量来确定到介质或其他雷达表面的距离。
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公开(公告)号：US20140360264A1
公开(公告)日：2014-12-11
申请号：US14366310
申请日：2012-11-22
IPC分类号： G01F23/296
CPC分类号： G01F23/2962 , G01F23/284
摘要： A method for measuring fill level and a measuring device for performing the method, wherein, in measuring cycles following one after the other, signal pulses of predetermined frequency sent by means of a transmitting and receiving system with a predetermined repetition frequency into a container, and their signal components reflected back in the container in the direction of the transmitting and receiving system after a travel time dependent on their traveled path, are received as received signal. A fill level is measured taking into consideration a phase relationship between the transmitted and received signals related physically with the fill level to be measured. In each measuring cycle, based on the received signal, an auxiliary signal is derived reflecting amplitude and phase information in the received signal as a function of travel time, based on the auxiliary signal, a travel time of a signal fraction reflected on a surface of the substance is determined as fundamental travel time are determined, based on the travel times of the zero crossings of the auxiliary signals determined in the current and in a plurality of preceding measuring cycles, a phase appearance-frequency distribution is derived as a function of travel time, which gives appearance-frequencies, with which zero crossings were present on the respective travel times in the associated auxiliary signals, a travel time of a maximum of the frequency distribution lying nearest the fundamental travel time is determined as fill level travel time, and the fill level is determined based on the fill level travel time.
摘要翻译： 一种用于测量填充水平的方法和用于执行该方法的测量装置，其中，在一个接一个的测量循环中，借助于具有预定重复频率的发送和接收系统发送到容器中的预定频率的信号脉冲，以及 它们的信号分量在依赖于其行进路径的行进时间之后在发送和接收系统的方向上反映回容器中，作为接收信号被接收。 考虑到物理上与要测量的填充水平相关的发射和接收信号之间的相位关系来测量填充水平。 在每个测量周期中，基于所接收的信号，基于辅助信号，将反映在接收信号中的幅度和相位信息作为行进时间的函数的辅助信号导出为反射在表面上的信号分数的行进时间 基于在当前和多个先前测量周期中确定的辅助信号的过零点的行进时间来确定基本旅行时间的基础行进时间，相位出现频率分布被导出为行进的函数 时间，其给出在相关联的辅助信号中在相应行进时间上存在零交叉的出现频率，将最接近基本行进时间的频率分布的最大值的行进时间确定为填充水平行进时间，以及 填充水平基于填充水平行进时间确定。
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7.发明授权公开(公告)号：US10753783B2
公开(公告)日：2020-08-25
申请号：US15464825
申请日：2017-03-21
发明人： Alexey Malinovskiy , Stefan Gorenflo , Jens Merle , Markus Vogel
IPC分类号： G01F25/00 , G01B21/14 , G01S13/88 , G01S7/03 , G01S7/40 , G01B15/00 , G01F23/284 , G01S7/06 , G01S7/35
摘要： A method for determining an inner diameter of a sounding tube, which, for measuring the fill level of a fill substance located in a process space of a container, extends in the process space, or is placed alongside the container and connected with the process space. The method can be implemented in the case of a fill-level measuring device working according to the FMCW-principle. Besides the intermediate frequency of the difference signal, also its phase shift is ascertained, wherein the exact tube inner diameter can be determined based on the phase shift. An advantage of the method is that the fill-level measuring device with the help of the then exactly known tube diameter can be recalibrated and accordingly the fill level determined more exactly. The exact tube inner diameter does not have to have been previously known.
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公开(公告)号：US09958310B2
公开(公告)日：2018-05-01
申请号：US14890717
申请日：2014-04-22
发明人： Harald Faber , Winfried Mayer , Alexey Malinovskiy
IPC分类号： G01S13/88 , G01F23/284 , G01F23/00 , G01S13/34 , G01S7/35
CPC分类号： G01F23/284 , G01F23/0061 , G01F23/0069 , G01S13/34 , G01S13/343 , G01S13/345 , G01S13/88 , G01S2007/356
摘要： A method for determining frequency components of a discrete time signal, comprising steps as follows: transforming the discrete time signal into the frequency domain by means of a fast Fourier transformation, wherein a frequency spectrum is obtained as a sequence of frequency sample values, detecting peaks in the frequency spectrum, introducing at least one additional frequency support point in the vicinity of a detected peak, determining a frequency amplitude at the at least one additional frequency support point by means of the Goertzel algorithm, and determining the position of the peak maximum of the detected peak by applying both the frequency sample values delivered by the fast Fourier transformation as well as also the frequency amplitude at the at least one additional frequency support point.
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公开(公告)号：US20170254692A1
公开(公告)日：2017-09-07
申请号：US15505747
申请日：2015-08-19
发明人： Harald Faber , Alexey Malinovskiy
IPC分类号： G01F23/284 , H01P3/06
摘要： A radar based fill level measurement device for measuring the fill level of a material in a container, comprising an electronics unit, wherein the electronics unit serves to generate a transmission signal, and serves to process a received signal. The received signal containing a reflected portion of the transmission signal, and the reflected portion being reflected from a surface of the material whose distance is to be measured. The electronics unit comprises a signal generator to generate a frequency modulated transmission signal, wherein the electronics unit comprises a processor to process the received signal using phase information comprised in the received signal, and wherein the radar device comprises a coaxial waveguide probe arranged in the container, wherein said coaxial waveguide probe serves for guiding the transmission signal (TX) and the received signal (RX).
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公开(公告)号：US20160097671A1
公开(公告)日：2016-04-07
申请号：US14890717
申请日：2014-04-22
发明人： Harald Faber , Winfried Mayer , Alexey Malinovskiy
IPC分类号： G01F23/284 , G01S13/34 , G01F23/00
CPC分类号： G01F23/284 , G01F23/0061 , G01F23/0069 , G01S13/34 , G01S13/343 , G01S13/345 , G01S13/88 , G01S2007/356
摘要： A method for determining frequency components of a discrete time signal, comprising steps as follows: transforming the discrete time signal into the frequency domain by means of a fast Fourier transformation, wherein a frequency spectrum is obtained as a sequence of frequency sample values, detecting peaks in the frequency spectrum, introducing at least one additional frequency support point in the vicinity of a detected peak, determining a frequency amplitude at the at least one additional frequency support point by means of the Goertzel algorithm, and determining the position of the peak maximum of the detected peak by applying both the frequency sample values delivered by the fast Fourier transformation as well as also the frequency amplitude at the at least one additional frequency support point.
摘要翻译： 一种用于确定离散时间信号的频率分量的方法，包括以下步骤：通过快速傅里叶变换将离散时间信号变换成频域，其中获得频谱作为频率采样值序列，检测峰值 在所述频谱中，在检测到的峰值附近引入至少一个附加频率支持点，通过所述Goertzel算法确定所述至少一个附加频率支持点处的频率振幅，以及确定所述峰值最大值的位置 通过应用通过快速傅里叶变换递送的频率采样值以及在至少一个附加频率支持点处的频率振幅来检测峰值。
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