Transmission with output torque sensor

    公开(公告)号:US09879774B2

    公开(公告)日:2018-01-30

    申请号:US15018904

    申请日:2016-02-09

    CPC classification number: F16H57/082 F16H1/28 F16H59/14 G01L1/165 G01L3/10

    Abstract: An output shaft of a transmission is fixed to a planetary gearset carrier. Output torque is measured via a surface acoustic wave sensor affixed to a face of the carrier between two adjacent planet gears and radially inside a weld joining the carrier face to an opposite carrier face. In this location, the level of strain at typical transmission output torques produces a level of strain within the measuring range of a surface acoustic wave sensor. The sensor may be powered and signals communicated across an air gap defined by signal rings. Due the stable position and orientation of the carrier, a small, consistent air gap is possible.

    Transmission With Output Torque Sensor

    公开(公告)号:US20170227114A1

    公开(公告)日:2017-08-10

    申请号:US15018904

    申请日:2016-02-09

    CPC classification number: F16H57/082 F16H1/28 F16H59/14 G01L1/165 G01L3/10

    Abstract: An output shaft of a transmission is fixed to a planetary gearset carrier. Output torque is measured via a surface acoustic wave sensor affixed to a face of the carrier between two adjacent planet gears and radially inside a weld joining the carrier face to an opposite carrier face. In this location, the level of strain at typical transmission output torques produces a level of strain within the measuring range of a surface acoustic wave sensor. The sensor may be powered and signals communicated across an air gap defined by signal rings. Due the stable position and orientation of the carrier, a small, consistent air gap is possible.

    LOW-COST TEMPERATURE AND PRESSURE SENSOR COMPRISING SAW RESONATORS, AND METHOD OF FABRICATION FOR SAME
    96.
    发明申请
    LOW-COST TEMPERATURE AND PRESSURE SENSOR COMPRISING SAW RESONATORS, AND METHOD OF FABRICATION FOR SAME 有权
    包含SAW谐振器的低成本温度和压力传感器及其制造方法

    公开(公告)号:US20130205906A1

    公开(公告)日:2013-08-15

    申请号:US13825312

    申请日:2011-09-19

    Abstract: A pressure and temperature sensor comprising comprises at least a first resonator of the SAW type comprising a piezoelectric substrate, thinned at least locally, of the membrane type, a second resonator of the SAW type comprising a piezoelectric substrate and a third resonator of the SAW type comprising a piezoelectric substrate, characterized in that the first, the second and the third resonators are respectively on the surface of first, second and third individual piezoelectric substrates, each of the individual substrates being positioned on the surface of a common base section, locally machined away under said first resonator in such a manner as to liberate the substrate from said resonator so as to render it operational for the measurement of pressure. A method of fabrication for such a sensor is also provided.

    Abstract translation: 一种压力和温度传感器,包括至少一种SAW型的第一谐振器,包括至少部分薄膜化的压电衬底,SAW型的第二谐振器,包括压电衬底和SAW型的第三谐振器 包括压电基片,其特征在于,第一,第二和第三谐振器分别位于第一,第二和第三单独的压电基片的表面上,每个单独的基板位于公共基底部分的表面上,被局部加工 在所述第一谐振器下方以从所述谐振器释放衬底的方式,以便使其可操作用于测量压力。 还提供了一种用于这种传感器的制造方法。

    Pulsed waveguide sensing device and method for measuring a parameter
    97.
    发明授权
    Pulsed waveguide sensing device and method for measuring a parameter 有权
    脉冲波导传感装置及其参数测量方法

    公开(公告)号:US08427176B2

    公开(公告)日:2013-04-23

    申请号:US12748078

    申请日:2010-03-26

    Applicant: Marc Stein

    Inventor: Marc Stein

    CPC classification number: G01L1/255 G01D5/48 G01L1/165 G01L5/16 G01L5/167

    Abstract: At least one embodiment is directed to a sensor for measuring a parameter. A signal path of the system comprises an amplifier (612), a sensor element, and an amplifier (620). The sensor element comprises a transducer (4), a waveguide (5), and a transducer (30). A parameter such as force or pressure applied to the sensor element can change the length of waveguide (5). A pulsed energy wave is emitted by the transducer (4) into the waveguide (5) at a first location. The transducer (30) is responsive pulsed energy waves at a second location of the waveguide (5). The transit time of each pulsed energy wave is measured. The transit time corresponds to the pressure or force applied to the sensor element.

    Abstract translation: 至少一个实施例涉及用于测量参数的传感器。 系统的信号路径包括放大器(612),传感器元件和放大器(620)。 传感器元件包括换能器(4),波导(5)和换能器(30)。 诸如施加到传感器元件的力或压力的参数可以改变波导(5)的长度。 在第一位置处,换能器(4)将脉冲能量波发射到波导(5)中。 换能器(30)在波导(5)的第二位置处响应脉冲能量波。 测量每个脉冲能量波的渡越时间。 通过时间对应于施加到传感器元件的压力或力。

    Nondestructive testing apparatus and method
    98.
    发明授权
    Nondestructive testing apparatus and method 有权
    无损检测仪器及方法

    公开(公告)号:US08368289B2

    公开(公告)日:2013-02-05

    申请号:US12993597

    申请日:2009-04-10

    Abstract: A laser opto-acoustic apparatus and method is applied for nondestructive testing of defects and residual stresses in solids. A nondestructive testing apparatus may have a piezoelectric transducer for measuring oscillations in a solid. The oscillations or waves may be caused from longitudinal, shear, and/or Raleigh waves in the object to be tested. The nondestructive testing apparatus may also include a laser. The laser is capable of generating the longitudinal, shear, and/or Raleigh waves in the object. One method of performing nondestructive testing of materials may include creating at least one of a longitudinal, shear, and/or Raleigh wave in an object and measuring the speed of the wave in the object. The speed of the waves may be compared with the speed of waves in a material without defects to determine whether the object to be tested has defects.

    Abstract translation: 激光光声装置和方法用于固体中缺陷和残余应力的非破坏性测试。 非破坏性测试装置可以具有用于测量固体中的振荡的压电换能器。 振荡或波浪可能由被测物体中的纵向,剪切和/或罗利波引起。 无损检测装置也可以包括激光器。 激光能够在物体中产生纵向,剪切和/或罗利波。 执行材料的非破坏性测试的一种方法可以包括在物体中产生纵向,剪切和/或罗利波中的至少一个并测量物体中波的速度。 波的速度可以与没有缺陷的材料中的波的速度进行比较,以确定待测试对象是否具有缺陷。

    Method and apparatus for measuring force particularly torque
    99.
    发明授权
    Method and apparatus for measuring force particularly torque 有权
    测量力特别是扭矩的方法和装置

    公开(公告)号:US07886620B2

    公开(公告)日:2011-02-15

    申请号:US12402540

    申请日:2009-03-12

    CPC classification number: G01L3/1428 G01L1/165

    Abstract: A method and apparatus for measuring the force applied by a first member coupled to a second member by a connecting body, by: transmitting a cyclically-repeating energy wave through the connecting body from a first location thereon to a second location thereon; measuring the transit time of the cyclically-repeating energy wave from the first location to the second location; and utilizing the measured transit time to produce a measurement of the force. In the preferred described embodiment, the connecting body is a fastening plate which fastens a drive shaft to a driven shaft and measures the torque output of the drive shaft.

    Abstract translation: 一种用于测量由连接体联接到第二构件的第一构件施加的力的方法和装置,其通过:将循环重复的能量波从所述连接体从其第一位置传递到其上的第二位置; 测量循环重复的能量波从第一位置到第二位置的传播时间; 并利用测得的渡越时间产生力的测量。 在优选的描述的实施例中,连接体是将驱动轴固定到从动轴并测量驱动轴的扭矩输出的紧固板。

    PULSED WAVEGUIDE SENSING DEVICE AND METHOD FOR MEASURING A PARAMETER
    100.
    发明申请
    PULSED WAVEGUIDE SENSING DEVICE AND METHOD FOR MEASURING A PARAMETER 有权
    脉冲波形传感装置和测量参数的方法

    公开(公告)号:US20100327880A1

    公开(公告)日:2010-12-30

    申请号:US12748078

    申请日:2010-03-26

    Applicant: Marc Stein

    Inventor: Marc Stein

    CPC classification number: G01L1/255 G01D5/48 G01L1/165 G01L5/16 G01L5/167

    Abstract: At least one embodiment is directed to a sensor for measuring a parameter. A signal path of the system comprises an amplifier (612), a sensor element, and an amplifier (620). The sensor element comprises a transducer (4), a waveguide (5), and a transducer (30). A parameter such as force or pressure applied to the sensor element can change the length of waveguide (5). A pulsed energy wave is emitted by the transducer (4) into the waveguide (5) at a first location. The transducer (30) is responsive pulsed energy waves at a second location of the waveguide (5). The transit time of each pulsed energy wave is measured. The transit time corresponds to the pressure or force applied to the sensor element.

    Abstract translation: 至少一个实施例涉及用于测量参数的传感器。 系统的信号路径包括放大器(612),传感器元件和放大器(620)。 传感器元件包括换能器(4),波导(5)和换能器(30)。 诸如施加到传感器元件的力或压力的参数可以改变波导(5)的长度。 在第一位置处,换能器(4)将脉冲能量波发射到波导(5)中。 换能器(30)在波导(5)的第二位置处响应脉冲能量波。 测量每个脉冲能量波的渡越时间。 通过时间对应于施加到传感器元件的压力或力。

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