公开(公告)号：US07440085B2

公开(公告)日：2008-10-21

申请号：US11313606

申请日：2005-12-20

Applicant: Jean-Michel Friedt ,  Andrew Campitelli ,  Laurent Francis

Inventor： Jean-Michel Friedt ,  Andrew Campitelli ,  Laurent Francis

IPC: G01N21/00 ,  G01N21/55

CPC classification number: G01N21/553

Abstract: The invention relates to a method and apparatus for obtaining and analysing physical properties of a substance. Optical data and acoustical data are obtained for the substance and the data are used to apply a model of the optical/acoustical properties of the substance such that thereby any of the thickness, the density, the refractive index and composite related information such as the content of a certain component in the substance can be determined. If dynamic effects are studied, preferably data of simultaneously performed optical and acoustical measurements are used. An example is the use of data of surface plasmon resonance measurements and surface acoustic wave measurements to determine the water content in solutions of organic material.

Abstract translation: 本发明涉及一种用于获得和分析物质的物理性能的方法和装置。 获得物质的光学数据和声学数据，并且使用数据来应用物质的光学/声学性质的模型，从而由此可以获得任何厚度，密度，折射率和复合材料相关信息，例如内容 可以确定物质中某一组分。 如果研究动态效应，则优选使用同时进行的光学和声学测量的数据。 一个例子是使用表面等离子体共振测量和表面声波测量数据来确定有机材料溶液中的含水量。

公开(公告)号：US20110241482A1

公开(公告)日：2011-10-06

申请号：US13080508

申请日：2011-04-05

Applicant: Christophe DROIT ,  Jean-Michel FRIEDT ,  Gilles MARTIN ,  Sylvain BALLANDRAS

Inventor： Christophe DROIT ,  Jean-Michel FRIEDT ,  Gilles MARTIN ,  Sylvain BALLANDRAS

IPC: H01L41/04

CPC classification number: G01N29/036 ,  B60C23/0449 ,  G01N29/2481 ,  G01N29/42 ,  G01N29/4454 ,  G01S13/753 ,  H04Q9/00 ,  H04Q2209/10 ,  H04Q2209/40 ,  H04Q2209/75

Abstract: A method of remotely interrogating a passive sensor, comprising at least one resonator, so as to determine the resonant frequency of said resonator, having a resonant frequency response defined by the design of said resonator, includes: a preliminary frequency-scan step for interrogating said resonator over a frequency range allowing for the rapid determination of a first resonant frequency (fr0) of said resonator by detecting the amplitude of the response signal of said resonator; a first step of a first couple of interrogations of said resonator at a first frequency (f11) and a second frequency (f21) such that: f11=fr0−fm/2 and f21=fr0+fm/2, fm being smaller than the width at half-maximum of the resonant frequency response defined by the design, allowing a first couple of amplitudes (Pf11, Pf21) of first and second reception signals to be defined; a second step of determining the amplitude difference (Δ(Pf11−Pf21)), said difference being signed; a third step allowing a first resonant frequency (fr1), controlled by said signed amplitude difference, to be defined and having the formula fr1=fr0+K*[Δ(Pf11−Pf21)−Ca], where Ca is a control set-point and K is a constant; and the reiteration of the first, second and third steps comprising the definition of an (i+1)th resonant frequency (fri+1) from an ith resonant frequency (fri) having the formula: fri+1=fri+K*[Δ(Pf1i−Pf2i)−Ca], so as to obtain a determined resonant frequency (fri+1) such that the signed amplitude difference (Δ(Pf1i−Pf2i)) is equal to the control set-point (Ca).

Abstract translation: 一种远程询问无源传感器的方法，包括至少一个谐振器，以便确定具有由所述谐振器的设计定义的谐振频率响应的所述谐振器的谐振频率，包括：初步频率扫描步骤，用于询问所述 谐振器，其允许通过检测所述谐振器的响应信号的幅度来快速确定所述谐振器的第一谐振频率（fr0）; 以第一频率（f11）​​和第二频率（f21）对所述谐振器的第一对询问的第一步骤，使得：f11 = fr0-fm / 2和f21 = fr0 + fm / 2，fm小于 由设计定义的谐振频率响应的最大值的宽度，允许定义第一和第二接收信号的第一对幅度（Pf11，Pf21）; 确定振幅差（＆Dgr;（Pf11-Pf21））的第二步骤，所述差被签名; 允许由所述有符号幅度差控制的第一共振频率（fr1）被定义并具有公式fr1 = fr0 + K * [＆Dgr（Pf11-Pf21）-Ca]的第三步骤，其中Ca是控制集 -point和K是一个常数; 并且重复第一，第二和第三步骤包括从具有以下公式的第i个谐振频率（星期一）定义第（i + 1）个谐振频率（星期一+ 1） ＆Dgr;（Pf1i-Pf2i）-Ca]，以获得确定的谐振频率（fri + 1），使得有符号振幅差（＆Dgr;（Pf1i-Pf2i））等于控制设定点（Ca） 。

公开(公告)号：US20100332157A1

公开(公告)日：2010-12-30

申请号：US12918666

申请日：2009-02-19

Applicant: Jean-Michel Friedt

Inventor： Jean-Michel Friedt

IPC: G06F19/00 ,  G01L7/00

CPC classification number: G01L1/165 ,  B60C23/0449 ,  G01L9/0025 ,  G01L19/086

Abstract: A method for interrogating a passive sensor comprising at least one piezoelectric resonator includes the following steps: the identification of the characteristic width of the resonant frequency band of the resonator; the determination of a scan interval equal to a third of the measured bandwidth; a first series of three interrogation measurements with signals respectively at a first frequency, at a second frequency and at a third frequency making it possible to define a first resonance value, a second resonance value and a third resonance value; the determination by a parabolic fitting operation of the resonator response curve on the basis of said first, second and third resonance values, so as to calculate a first value of the frequency in real time of the resonator. The invention also relates to an electronic device for interrogating a passive sensor comprising at least one piezoelectric resonator and comprising a micro-controller implementing the interrogation method of the invention.

Abstract translation: 一种用于询问包括至少一个压电谐振器的无源传感器的方法包括以下步骤：识别谐振器的谐振频带的特征宽度; 确定扫描间隔等于测量带宽的三分之一; 第一系列三个询问测量，分别以第一频率，第二频率和第三频率处于信号，使得可以定义第一谐振值，第二谐振值和第三谐振值; 基于所述第一，第二和第三谐振值，通过谐振器响应曲线的抛物线拟合操作来确定，以便计算谐振器的实时频率的第一值。 本发明还涉及用于询问无源传感器的电子设备，该无源传感器包括至少一个压电谐振器，并且包括实现本发明的询问方法的微控制器。

公开(公告)号：US09395392B2

公开(公告)日：2016-07-19

申请号：US13588606

申请日：2012-08-17

Applicant: Christophe Droit ,  Jean-Michel Friedt ,  Gilles Martin ,  Sylvain Ballandras

Inventor： Christophe Droit ,  Jean-Michel Friedt ,  Gilles Martin ,  Sylvain Ballandras

IPC: G01R9/00 ,  G01D5/48 ,  G01K11/22 ,  G01H13/00

CPC classification number: G01R9/00 ,  G01D5/48 ,  G01H13/00 ,  G01K11/22

Abstract: A method of interrogating a surface acoustic wave differential sensor formed by two resonators is provided, wherein the method allows the measurement of a physical parameter by determination of the difference between the natural resonant frequencies of the two resonators, which difference is determined on the basis of the analysis of a signal representative of the level of a signal received as echo of an interrogation signal, for a plurality of values of a frequency of the interrogation signal in a domain of predetermined values; the analysis can be based on the cross-correlation of the said signal representative of the level according to a splitting into two distinct frequency sub-bands. An advantage is that it may be implemented in a radio-modem.

Abstract translation: 提供了一种询问由两个谐振器形成的表面声波差分传感器的方法，其中该方法允许通过确定两个谐振器的固有谐振频率之间的差异来测量物理参数，该差是基于 对于在预定值的域中的询问信号的频率的多个值，表示作为询问信号的回波接收的信号的电平的信号的分析; 分析可以基于表示根据分成两个不同频率子带的电平的所述信号的互相关。 优点在于它可以在无线电调制解调器中实现。

公开(公告)号：US08392128B2

公开(公告)日：2013-03-05

申请号：US12918666

申请日：2009-02-19

Applicant: Jean-Michel Friedt

Inventor： Jean-Michel Friedt

IPC: G01L1/00 ,  G01L1/16

CPC classification number: G01L1/165 ,  B60C23/0449 ,  G01L9/0025 ,  G01L19/086

Abstract: A method for interrogating a passive sensor comprising at least one piezoelectric resonator includes the following steps: the identification of the characteristic width of the resonant frequency band of the resonator; the determination of a scan interval equal to a third of the measured bandwidth; a first series of three interrogation measurements with signals respectively at a first frequency, at a second frequency and at a third frequency making it possible to define a first resonance value, a second resonance value and a third resonance value; the determination by a parabolic fitting operation of the resonator response curve on the basis of said first, second and third resonance values, so as to calculate a first value of the frequency in real time of the resonator. The invention also relates to an electronic device for interrogating a passive sensor comprising at least one piezoelectric resonator and comprising a micro-controller implementing the interrogation method of the invention.

Abstract translation: 一种用于询问包括至少一个压电谐振器的无源传感器的方法包括以下步骤：识别谐振器的谐振频带的特征宽度; 确定扫描间隔等于测量带宽的三分之一; 第一系列三个询问测量，分别以第一频率，第二频率和第三频率处于信号，使得可以定义第一谐振值，第二谐振值和第三谐振值; 基于所述第一，第二和第三谐振值，通过谐振器响应曲线的抛物线拟合操作来确定，以便计算谐振器的实时频率的第一值。 本发明还涉及用于询问无源传感器的电子设备，该无源传感器包括至少一个压电谐振器，并且包括实现本发明的询问方法的微控制器。

公开(公告)号：US08436512B2

公开(公告)日：2013-05-07

申请号：US13080508

申请日：2011-04-05

Applicant: Christophe Droit ,  Jean-Michel Friedt ,  Gilles Martin ,  Sylvain Ballandras

Inventor： Christophe Droit ,  Jean-Michel Friedt ,  Gilles Martin ,  Sylvain Ballandras

IPC: H01L41/107

CPC classification number: G01N29/036 ,  B60C23/0449 ,  G01N29/2481 ,  G01N29/42 ,  G01N29/4454 ,  G01S13/753 ,  H04Q9/00 ,  H04Q2209/10 ,  H04Q2209/40 ,  H04Q2209/75

Abstract: A method of remotely interrogating a passive sensor, comprising at least one resonator, so as to determine the resonant frequency of said resonator, having a resonant frequency response defined by the design of said resonator, includes: a preliminary frequency-scan step for interrogating said resonator over a frequency range allowing for the rapid determination of a first resonant frequency (fr0) of said resonator by detecting the amplitude of the response signal of said resonator; a first step of a first couple of interrogations of said resonator at a first frequency (f11) and a second frequency (f21) such that: f11=fr0−fm/2 and f21=fr0+fm/2, fm being smaller than the width at half-maximum of the resonant frequency response defined by the design, allowing a first couple of amplitudes (Pf11, Pf21) of first and second reception signals to be defined; a second step of determining the amplitude difference (Δ(Pf11−Pf21)), said difference being signed; a third step allowing a first resonant frequency (fr1), controlled by said signed amplitude difference, to be defined and having the formula fr1=fr0+K*[Δ(Pf11−Pf21)−Ca], where Ca is a control set-point and K is a constant; and the reiteration of the first, second and third steps comprising the definition of an (i+1)th resonant frequency (fri+1) from an ith resonant frequency (fri) having the formula: fri+1=fri+K*[Δ(Pf1i−Pf2i)−Ca], so as to obtain a determined resonant frequency (fri+1) such that the signed amplitude difference (Δ(Pf1i−Pf2i)) is equal to the control set-point (Ca).

Abstract translation: 一种远程询问无源传感器的方法，包括至少一个谐振器，以便确定具有由所述谐振器的设计定义的谐振频率响应的所述谐振器的谐振频率，包括：初步频率扫描步骤，用于询问所述 谐振器，其允许通过检测所述谐振器的响应信号的幅度来快速确定所述谐振器的第一谐振频率（fr0）; 以第一频率（f11）​​和第二频率（f21）对所述谐振器的第一对询问的第一步骤，使得：f11 = fr0-fm / 2和f21 = fr0 + fm / 2，fm小于 由设计定义的谐振频率响应的最大值的宽度，允许定义第一和第二接收信号的第一对幅度（Pf11，Pf21）; 确定振幅差（Delta（Pf11-Pf21））的第二步骤，所述差被签名; 允许由所述有符号振幅差控制的第一共振频率（fr1）被定义并具有公式fr1 = fr0 + K * [Δ（Pf11-Pf21）-Ca]的第三步骤，其中Ca是控制设置 - 点和K是常数; 并且重复第一，第二和第三步骤包括从具有以下公式的第i个谐振频率（星期一）定义第（i + 1）个谐振频率（星期一+ 1） Delta（Pf1i-Pf2i）-Ca]，以获得确定的谐振频率（fri + 1），使得有符号的振幅差（Delta（Pf1i-Pf2i））等于控制设定点（Ca）。

公开(公告)号：US20080131869A1

公开(公告)日：2008-06-05

申请号：US11769237

申请日：2007-06-27

Applicant: Filip Frederix ,  Gustaaf Borghs ,  Jean-Michel Friedt

Inventor： Filip Frederix ,  Gustaaf Borghs ,  Jean-Michel Friedt

IPC: C12Q1/70 ,  G01N21/62 ,  G01N33/53 ,  C12Q1/68

CPC classification number: G01N21/554 ,  B82Y30/00 ,  G01N21/77 ,  G01N33/54373 ,  G01N2021/258 ,  G01N2021/7783

Abstract: The present invention discloses an improved method for detecting an analyte. The present invention may be used for sensing devices which have a higher sensitivity and which can be used to detect very low concentration of analyte. In one embodiment, the method comprises the steps of providing a substrate, said substrate comprising a conductive region and a recognition layer, said conductive region having at least a first surface and a second surface, wherein said first surface is operatively associated with said recognition layer; subjecting said substrate to said analyte such that an interaction occurs between said analyte and said recognition layer; directing radiation through said substrate such that said radiation incidents on said conductive region and said recognition layer; and measuring the intensity of said radiation absorbed or transmitted by said substrate as a function of the wavelength in order to determine the presence of an analyte.

Abstract translation: 本发明公开了一种用于检测分析物的改进方法。 本发明可以用于具有较高灵敏度并可用于检测非常低浓度分析物的感测装置。 在一个实施例中，该方法包括以下步骤：提供衬底，所述衬底包括导电区域和识别层，所述导电区域具有至少第一表面和第二表面，其中所述第一表面与所述识别层可操作地相关联 ; 使所述衬底经受所述分析物，使得所述分析物与所述识别层之间发生相互作用; 引导辐射穿过所述衬底，使得所述辐射突发在所述导电区域和所述识别层上; 并测量由所述基底吸收或透射的所述辐射的强度作为波长的函数，以便确定分析物的存在。

公开(公告)号：US09435768B2

公开(公告)日：2016-09-06

申请号：US13588501

申请日：2012-08-17

Applicant: Sylvain Ballandras ,  Jean-Michel Friedt ,  Thibault Retornaz

Inventor： Sylvain Ballandras ,  Jean-Michel Friedt ,  Thibault Retornaz

IPC: G01F17/00 ,  G01N29/22 ,  G06K19/067

CPC classification number: G01N29/22 ,  G06K19/0675

Abstract: A method of interrogating sensors of SAW type, which allows notably the gathering of physical measurements of parameters carried out by SAW sensors, the method for gathering the measurement of an SAW sensor comprising a first step of generating and emitting an electromagnetic signal corresponding to the dilated time-reversal of a dilation coefficient k, of an impulse response signature which is characteristic of the SAW sensor, a second step of gathering a signal received as echo originating from the SAW sensor, a third step of determining a maximum of cross-correlation of the signal received as echo during the second step, the first step being applied with a set of values of the dilation coefficient k in a determined domain, the measurement of a physical parameter then being determined by the dilation coefficient k for which the power or the amplitude of the signal gathered as echo is a maximum.

Abstract translation: 一种询问SAW型传感器的方法，其特别地允许采集由SAW传感器执行的参数的物理测量，用于收集SAW传感器的测量的方法包括：产生和发射对应于扩张的电磁信号的电磁信号的第一步骤 作为SAW传感器特征的脉冲响应特征的扩张系数k的时间反转;收集作为来自SAW传感器的回波接收的信号的第二步骤，确定第二步骤， 在第二步骤期间作为回波接收的信号，第一步骤被应用在确定的域中的扩张系数k的一组值，然后由物理参数的测量由扩展系数k确定功率或 作为回波收集的信号的幅度是最大的。

公开(公告)号：US20130218498A1

公开(公告)日：2013-08-22

申请号：US13588606

申请日：2012-08-17

Applicant: Christophe DROIT ,  Jean-Michel FRIEDT ,  Gilles MARTIN ,  Sylvain BALLANDRAS

Inventor： Christophe DROIT ,  Jean-Michel FRIEDT ,  Gilles MARTIN ,  Sylvain BALLANDRAS

IPC: G01R9/00

CPC classification number: G01R9/00 ,  G01D5/48 ,  G01H13/00 ,  G01K11/22

Abstract: A method of interrogating a surface acoustic wave differential sensor formed by two resonators is provided, wherein the method allows the measurement of a physical parameter by determination of the difference between the natural resonant frequencies of the two resonators, which difference is determined on the basis of the analysis of a signal representative of the level of a signal received as echo of an interrogation signal, for a plurality of values of a frequency of the interrogation signal in a domain of predetermined values; the analysis can be based on the cross-correlation of the said signal representative of the level according to a splitting into two distinct frequency sub-bands. An advantage is that it may be implemented in a radio-modem.

Abstract translation: 提供了一种询问由两个谐振器形成的表面声波差分传感器的方法，其中该方法允许通过确定两个谐振器的固有谐振频率之间的差异来测量物理参数，该差是基于 对于在预定值的域中的询问信号的频率的多个值，表示作为询问信号的回波接收的信号的电平的信号的分析; 分析可以基于表示根据分成两个不同频率子带的电平的所述信号的互相关。 优点在于它可以在无线电调制解调器中实现。

公开(公告)号：US20130211747A1

公开(公告)日：2013-08-15

申请号：US13588501

申请日：2012-08-17

Applicant: Sylvain BALLANDRAS ,  Jean-Michel FRIEDT ,  Thibault RETORNAZ

Inventor： Sylvain BALLANDRAS ,  Jean-Michel FRIEDT ,  Thibault RETORNAZ

IPC: G01N29/22

CPC classification number: G01N29/22 ,  G06K19/0675

Abstract: A method of interrogating sensors of SAW type, which allows notably the gathering of physical measurements of parameters carried out by SAW sensors, the method for gathering the measurement of an SAW sensor comprising a first step of generating and emitting an electromagnetic signal corresponding to the dilated time-reversal of a dilation coefficient k, of an impulse response signature which is characteristic of the SAW sensor, a second step of gathering a signal received as echo originating from the SAW sensor, a third step of determining a maximum of cross-correlation of the signal received as echo during the second step, the first step being applied with a set of values of the dilation coefficient k in a determined domain, the measurement of a physical parameter then being determined by the dilation coefficient k for which the power or the amplitude of the signal gathered as echo is a maximum.

Abstract translation: 一种询问SAW型传感器的方法，其特别地允许采集由SAW传感器执行的参数的物理测量，用于收集SAW传感器的测量的方法包括：产生和发射对应于扩张的电磁信号的电磁信号的第一步骤 作为SAW传感器特征的脉冲响应特征的扩张系数k的时间反转;收集作为来自SAW传感器的回波接收的信号的第二步骤，确定第二步骤， 在第二步骤期间作为回波接收的信号，第一步骤被应用在确定的域中的扩张系数k的一组值，然后由物理参数的测量由扩展系数k确定功率或 作为回波收集的信号的幅度是最大的。