Method for optimizing the design of a device comprising interrogation means and a remotely-interrogatable passive sensor

    公开(公告)号:US20180335350A1

    公开(公告)日:2018-11-22

    申请号:US15983966

    申请日:2018-05-18

    Applicant: SENSEOR

    Abstract: A method for optimizing the design of a device includes interrogation means and a differential passive sensor, including a generator connected directly or indirectly to a reader antenna, a passive sensor including at least two resonators, a sensor antenna connected to the sensor. The method includes determining a set of curves PSAW as a function of the frequency of interrogation of the sensor, each curve being defined for a given impedance ZT representing the impedance of the Thevenin equivalent generator dependent on the impedance of the reader antenna, on the impedance of the sensor antenna and on the coupling between the two antennas, for a given sensor impedance ZSAW; selecting at least one curve PSAW from the set of predefined curves meeting two criteria: exhibiting two frequency peaks representative of a coherent differential sensor behavior; having a width at mid-height of the two the peaks below a threshold value; and determining the sensor antenna exhibiting the sensor antenna impedance correlated to the curve PSAW selected for the predefined SAW sensor.

    TORQUE-MEASUREMENT DEVICE FOR A TURBOMACHINE SHAFT
    6.
    发明申请
    TORQUE-MEASUREMENT DEVICE FOR A TURBOMACHINE SHAFT 审中-公开
    TURBOMACHINE SHAFT扭矩测量装置

    公开(公告)号:US20160299019A1

    公开(公告)日:2016-10-13

    申请号:US15100838

    申请日:2014-12-02

    Applicant: SNECMA

    CPC classification number: G01L3/104 G01L1/165 G01L3/102 G01L25/003

    Abstract: The present invention relates to a torque-measurement device for a turbine engine shaft (1) including a proof body (7) capable of being mounted on the shaft, characterised in that the proof body (7) forms a mounting for at least one acoustic-wave strain gauge (20) and is magnetised such as to allow the torque to be measured by magnetostrictive effect. The invention also relates to a method for calibrating the torque-measurement system including a first step of calibrating said device, the device being mounted on a shaft but outside of the engine, by applying reference torques to the shaft with the device and by establishing a rule regarding the relationship between the strain measured by said strain gauge and the actual torque applied, a step of mounting the shaft with the device inside the turbine engine together with placement of the magnetostrictive measurement system, the calibration of the first step being optionally reset with the engine stopped, and a step of establishing a calibration rule regarding the relationship between the torque measured by magnetostrictive effect and the reference torque provided by the strain gauges.

    Abstract translation: 本发明涉及一种用于涡轮发动机轴(1)的转矩测量装置,其包括能够安装在轴上的检验体(7),其特征在于,所述检验体(7)形成用于至少一个声学 波应变仪(20),并被磁化,以允许通过磁致伸缩效应来测量转矩。 本发明还涉及一种用于校准扭矩测量系统的方法,该方法包括:校准所述装置的第一步骤,所述装置安装在轴上且在发动机外部,通过使用所述装置将参考扭矩施加到所述轴上,并且通过建立 关于由所述应变仪测量的应变与所施加的实际扭矩之间的关系的规则,将所述轴与所述装置一起安装在所述涡轮发动机内部以及所述磁致伸缩测量系统的放置的步骤,所述第一步骤的校准可选地重置为 发动机停止,并且建立关于由磁致伸缩效应测量的扭矩与由应变计提供的参考扭矩之间的关系的校准规则的步骤。

    Surface Acoustic Wave (SAW) Based Strain Sensor
    7.
    发明申请
    Surface Acoustic Wave (SAW) Based Strain Sensor 有权
    基于表面声波(SAW)的应变传感器

    公开(公告)号:US20160282204A1

    公开(公告)日:2016-09-29

    申请号:US14669579

    申请日:2015-03-26

    Abstract: A sensor system for determining deformation of an object subject to forces. The sensor system comprises an object upon which forces are exerted and a cavity within the object, a first substrate for supporting surface acoustic waves in an upper surface of the first substrate, the first substrate disposed in the cavity, a first surface acoustic wave transducer disposed on the upper surface and responsive to an interrogation signal for generating an incident surface acoustic wave in the upper surface, a first reflector array responsive to the incident surface acoustic wave for creating reflected surface acoustic waves on the upper surface, the reflected surface acoustic waves received by the transducer and having characteristics indicative of strain deformation of the object due to a force exerted on the object.

    Abstract translation: 一种用于确定受到力的物体的变形的传感器系统。 传感器系统包括施加力的物体和物体内的空腔,用于支撑第一基板的上表面中的表面声波的第一基板,设置在空腔中的第一基板,设置在第一表面声波换能器 在上表面上响应于在上表面中产生入射表面声波的询问信号,响应于入射表面声波的第一反射器阵列在上表面上产生反射表面声波,所接收的反射表面声波 并且具有指示由于施加在物体上的力引起的物体的应变变形的特性。

    DISTRACTOR HAVING AN INTERNAL LOAD MEASURMENT SYSTEM FOR THE MUSCULAR-SKELETAL SYSTEM AND METHOD THEREFOR
    8.
    发明申请
    DISTRACTOR HAVING AN INTERNAL LOAD MEASURMENT SYSTEM FOR THE MUSCULAR-SKELETAL SYSTEM AND METHOD THEREFOR 审中-公开
    具有用于肌肉系统的内部负载测量系统的分散器及其方法

    公开(公告)号:US20130023795A1

    公开(公告)日:2013-01-24

    申请号:US13631477

    申请日:2012-09-28

    Abstract: A distractor suitable for measuring a force, pressure, or load applied by the muscular-skeletal system is disclosed. An insert couples to the distractor. The insert has at least one articular surface allowing movement of the muscular-skeletal system when the distractor is inserted thereto. The insert can be a passive insert having no measurement devices. A sensor array and electronics are housed within the distractor. The distractor can dynamically distract the muscular-skeletal system. A handle of the distractor can be rotated to increase or decrease the spacing between support structures. The measurement system comprises a sensor array and electronic circuitry. In one embodiment, the electronic circuitry is coupled to the sensor array by a unitary circuit board or substrate. The sensors can be integrated into the unitary circuit board. For example, the sensors can comprise elastically compressible capacitors or piezo-resistive devices. The distractor wirelessly couples to a remote system for providing position and magnitude measurement data of the force, pressure, or load being measured.

    Abstract translation: 公开了适用于测量由肌肉 - 骨骼系统施加的力,压力或负载的牵引器。 插入物连接到牵引器。 插入物具有至少一个关节表面,当牵引器插入其中时允许肌肉 - 骨骼系统的运动。 插入件可以是没有测量​​装置的被动插入件。 传感器阵列和电子器件容纳在牵引机内。 牵引器可以动态地分散肌肉 - 骨骼系统。 牵引器的手柄可以旋转以增加或减小支撑结构之间的间距。 测量系统包括传感器阵列和电子电路。 在一个实施例中,电子电路通过整体电路板或基板耦合到传感器阵列。 传感器可以集成到整体电路板中。 例如,传感器可以包括弹性可压缩电容器或压阻装置。 牵引器无线耦合到远程系统,用于提供测量的力,压力或负载的位置和幅度测量数据。

    Method of collective fabrication of calibration-free temperature and/or strain sensors by matching of resonators on the basis of resonant frequency and static capacitance criteria
    9.
    发明授权
    Method of collective fabrication of calibration-free temperature and/or strain sensors by matching of resonators on the basis of resonant frequency and static capacitance criteria 有权
    基于谐振频率和静电容量标准,通过匹配谐振器来集体制造无校准温度和/或应变传感器的方法

    公开(公告)号:US08336192B2

    公开(公告)日:2012-12-25

    申请号:US12820014

    申请日:2010-06-21

    Abstract: A method of collective fabrication of remotely interrogatable sensors, wherein the method may include fabricating fabricating a first series of first resonators exhibiting a first resonant frequency at ambient temperature and a first static capacitance and fabricating a second series of second resonators exhibiting a second resonant frequency at ambient temperature and a second static capacitance. The method may also include performing a series of electrical measurements of the set of the first series of first resonators and of the set of the second series of second resonators, so as to determine first pairs and second pairs of resonant frequency and of capacitance of each of the first and second resonators and performing a series of matching of a first resonator and of a second resonator.

    Abstract translation: 一种集成制造远程可询问传感器的方法,其中该方法可包括制造制造在环境温度下呈现第一谐振频率的第一系列第一谐振器和第一静态电容,并且制造出呈现第二谐振频率的第二系列第二谐振器 环境温度和第二静态电容。 该方法还可以包括执行第一系列第一谐振器组和第二系列第二谐振器的集合的一系列电测量,以便确定第一对和第二对谐振频率和每个 并且执行第一谐振器和第二谐振器的一系列匹配。

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