Beam accelerometer with limiting apparatus

    公开(公告)号:US20090071250A1

    公开(公告)日:2009-03-19

    申请号:US11901021

    申请日:2007-09-14

    IPC分类号: G01P15/12

    CPC分类号: G01P15/123 G01P1/023

    摘要: An accelerometer includes a cantilever mass with a thin beam element between the mass and the fixed end of the accelerometer. The end of the mass is tapered. A limiting member has an aperture that is tapered corresponding to the taper at the end of the mass and positioned to surround the tapered end of the seismic mass. The beam accelerometer as well as the limiting member is placed in a cylindrical housing whereby the limiting member is moved along the taper of the seismic mass to adjust the spacing between the limiting member and the inner wall of the housing to thereby adjust the amount of movement of the seismic mass. In one embodiment the aperture of the tapered limited member also surrounds the seismic mass but the gap between the inner wall of the tapered limiting member and the outer wall of the seismic mass is adjusted to determine the amount of movement of the beam. In this manner, one can utilize a beam accelerometer arrangement of a cylindrical configuration within a housing and whereby the seismic mass has a taper and the taper coacts with a limiting member which has a corresponding taper to adjust the distance that the beam can move upon application of a force thereto.

    Beam accelerometer with limiting apparatus
    2.
    发明授权
    Beam accelerometer with limiting apparatus 失效
    光束加速度计与限制装置

    公开(公告)号:US07624637B2

    公开(公告)日:2009-12-01

    申请号:US11901021

    申请日:2007-09-14

    IPC分类号: G01P15/10 G01P15/12

    CPC分类号: G01P15/123 G01P1/023

    摘要: An accelerometer includes a cantilever mass with a thin beam element between the mass and the fixed end of the accelerometer. The end of the mass is tapered. A limiting member has an aperture that is tapered corresponding to the taper at the end of the mass and positioned to surround the tapered end of the seismic mass. The beam accelerometer as well as the limiting member is placed in a cylindrical housing whereby the limiting member is moved along the taper of the seismic mass to adjust the spacing between the limiting member and the inner wall of the housing to thereby adjust the amount of movement of the seismic mass. In one embodiment the aperture of the tapered limited member also surrounds the seismic mass but the gap between the inner wall of the tapered limiting member and the outer wall of the seismic mass is adjusted to determine the amount of movement of the beam. In this manner, one can utilize a beam accelerometer arrangement of a cylindrical configuration within a housing and whereby the seismic mass has a taper and the taper coacts with a limiting member which has a corresponding taper to adjust the distance that the beam can move upon application of a force thereto.

    摘要翻译: 一个加速度计包括一个悬臂质量块,在质量块和加速度计的固定端之间有一个薄梁单元。 质量的末端是锥形的。 限制构件具有对应于质量端部处的锥形并且定位成围绕地震块的锥形端的锥形的孔。 梁加速度计以及限制构件被放置在圆柱形壳体中,由此限制构件沿着地震块的锥形移动以调节限制构件与壳体的内壁之间的间隔,从而调节移动量 的地震质量。 在一个实施例中,锥形限制构件的孔也围绕地震块,但调整锥形限制构件的内壁和地震块的外壁之间的间隙以确定梁的移动量。 以这种方式,可以利用在壳体内的圆柱形结构的光束加速度计布置,并且由此地震块具有锥形,并且锥形与限制构件共同作用,该限制构件具有相应的锥度以调节光束在施加时可以移动的距离 的力量。

    TORQUE INSENSITIVE HEADER ASSEMBLY
    3.
    发明申请
    TORQUE INSENSITIVE HEADER ASSEMBLY 有权
    扭矩敏感头组件

    公开(公告)号:US20120318068A1

    公开(公告)日:2012-12-20

    申请号:US13595057

    申请日:2012-08-27

    IPC分类号: G01L9/06 G01L7/08

    摘要: There is disclosed a high pressure sensing header which is relatively insensitive to mounting torque. The header comprises an outer torque isolating shell which surrounds an inner “H” section header. The inner “H” section header has a thick diaphragm and is surrounded by the torque isolating shell which is secured to the “H” section header at a peripheral flange of the “H” section header. In this manner when the header is installed, the installation force is absorbed by the outer shell and there is no installation force or torque exhibited by the inner “H” section which will respond only to stress due to pressure. The torque isolating shell also contains a top surface which has a counterbore that accommodates a crush ring. When the unit is installed, the crush ring is crushed against an installation wall to enable the inner header to receive pressure without experiencing significant installation force.

    摘要翻译: 公开了一种对安装扭矩相对不敏感的高压感测头。 头部包括围绕内部H部分头部的外部扭矩隔离壳体。 内部H部分头部具有厚的隔膜,并被扭矩隔离壳围绕,该扭矩隔离壳体在H部分头部的周边凸缘处固定到H部分头部。 以这种方式,当安装头部时,安装力被外壳吸收,并且没有由内部H部分表现出的安装力或扭矩,其仅响应于由于压力引起的应力。 扭矩隔离壳体还包括具有容纳压溃环的沉孔的顶表面。 当装置安装时,挤压环被压在安装壁上,以使内部集管接收压力,而不会受到显着的安装力。

    Apparatus and method for eliminating varying pressure fluctuations in a pressure transducer
    4.
    发明授权
    Apparatus and method for eliminating varying pressure fluctuations in a pressure transducer 有权
    用于消除压力传感器中变化的压力波动的装置和方法

    公开(公告)号:US07921724B2

    公开(公告)日:2011-04-12

    申请号:US12574587

    申请日:2009-10-06

    IPC分类号: G01L9/06

    CPC分类号: G01L19/0609 G01L13/025

    摘要: A single pressure sensing capsule has a reference pressure ported to the rear side of a silicon sensing die. The front side of the silicon sensing die receives a main pressure at another port. The silicon sensing die contains a full Wheatstone bridge on one of the surfaces and within the active area designated as the diaphragm area. Thus, the difference of the main and reference pressure results in the sensor providing an output equivalent to the differential pressure, namely the main pressure minus the reference pressure which is the stress induced in a sensing diaphragm. In any event, the reference pressure or main pressure may be derived from a pump pressure which is being monitored. The pump pressure output is subjected to a pump ripple or a sinusoidally varying pressure. In order to compensate for pump ripple, one employs a coiled tube. The tube length is selected to suppress the pump ripple as applied to the sensor die. In this manner, the pump ripple cannot cause resonance which would result in pressure amplification and which pressure amplification would destroy the sensor.

    摘要翻译: 单个压力感测胶囊具有移动到硅感测裸片的后侧的参考压力。 硅感测模具的前侧在另一端口处接收主压力。 硅感测裸片在其中一个表面上以及指定为隔膜区域的有源区域内包含一个完整的惠斯通电桥。 因此,主要和参考压力的差异导致传感器提供与差压相当的输出,即主压力减去在感测膜片中感应的应力的参考压力。 无论如何,参考压力或主要压力可以从正被监测的泵压力导出。 泵压力输出受到泵波动或正弦变化的压力。 为了补偿泵波动,采用一个盘管。 选择管长度以抑制应用于传感器管芯的泵波动。 以这种方式,泵波动不会引起共振,这将导致压力放大,哪个压力放大会破坏传感器。

    Torque insensitive header assembly
    5.
    发明申请
    Torque insensitive header assembly 有权
    扭矩不敏感头部组件

    公开(公告)号:US20100275696A1

    公开(公告)日:2010-11-04

    申请号:US12387548

    申请日:2009-05-04

    IPC分类号: G01L7/08

    摘要: There is disclosed a high pressure sensing header which is relatively insensitive to mounting torque. Essentially the header consists of an outer torque isolating shell which has a “C” shaped cross section with the cylindrical shell surrounding an inner “H” section header. The inner “H” section header has a thick diaphragm and is surrounded by the torque isolating shell which is secured to the “H” section header at a peripheral flange of the “H” section header. In this manner when the header is installed, the installation force is absorbed by the outer shell and there is no installation force or torque exhibited by the inner “H” section which will respond only to stress due to pressure. The torque isolating shell also contains a top surface which has a counterbore which can accommodate a crush ring, and when the unit is installed, the crush ring is forced or crushed against an installation wall to enable the inner header to receive pressure without experiencing any significant installation force.

    摘要翻译: 公开了一种对安装扭矩相对不敏感的高压感测头。 基本上,集管由外部扭矩隔离壳体组成,外壳具有“C”形截面,圆柱形壳体围绕内部“H”部分集管。 内部“H”部分头部具有厚的隔膜,并且被扭矩隔离壳围绕,该扭矩隔离壳体在“H”部分头部的周边凸缘处固定到“H”部分头部。 以这种方式,当安装头部时,安装力被外壳吸收,并且内部“H”部分没有表现出的安装力或扭矩,该内部“H”部分将只响应于压力引起的应力。 扭矩隔离壳体还包括具有可容纳压溃环的沉孔的顶表面,并且当安装该单元时,挤压环被迫或压在安装壁上,以使内部集管容纳压力,而不会经历任何显着的 安装力。

    Multiple axis load cell controller
    6.
    发明授权
    Multiple axis load cell controller 有权
    多轴称重传感器控制器

    公开(公告)号:US07743672B2

    公开(公告)日:2010-06-29

    申请号:US12157029

    申请日:2008-06-06

    IPC分类号: G01D7/00

    摘要: There is disclosed a multiple axis load cell or controller in which axial and torsion measurements are decoupled while maximizing the outputs of both measurements. The active member of the load cell is a wheel with dual beams as the spokes. The wheel thus has four spokes or four beam members, each spoke is a pair of rectangular cross-section beams, orthogonal to each other. The beams have strain gages on the wide surfaces which measure the bending strain which is proportional to torsion or the axial input. There is an inner beam section and an outer beam section associated with each spoke and orthogonal to each other. The outer beams have the wide surface normal to the axis of the load cell. This beam section is more sensitive to the axial tension/compression input. The inner beam sections have their wide surface parallel to the axis of the load cell and are much less sensitive to bending but are sensitive to torsion. Therefore when a torsion or twisting motion is applied to the load cell, the inner beams with their wide surface parallel to the axis of the wheel are more sensitive and bend more. These beams experience bending as a result of the torsion input and have strain gages formed in a Wheatstone bridge arrangement to provide an output proportional to the torsion. The outer beams also have gages mounted thereon which are also wired in a Wheatstone bridge configuration and which Wheatstone bridge output of these gages are proportional to the axial force.

    摘要翻译: 公开了一种多轴称重传感器或控制器,其中轴向和扭转测量被解耦,同时最大化两个测量的输出。 称重传感器的活动构件是具有双梁作为轮辐的车轮。 因此,车轮具有四个轮辐或四个梁构件,每个轮辐是一对彼此正交的矩形横截面梁。 梁在宽表面上具有应变计,其测量与扭转或轴向输入成比例的弯曲应变。 存在与每个辐条相关联并且彼此正交的内梁部分和外部梁部分。 外梁具有与测力传感器的轴线垂直的宽表面。 该梁部分对轴向张力/压缩输入更敏感。 内梁部分的宽表面平行于称重传感器的轴线,并且对弯曲敏感度较低,但对扭转敏感。 因此,当对称重传感器施加扭转或扭转运动时,具有与车轮轴线平行的宽表面的内梁更敏感并且弯曲得更多。 这些梁由于扭转输入而经历弯曲,并且在惠斯登电桥布置中形成应变计以提供与扭转成比例的输出。 外梁还具有安装在其上的规格,其也以惠斯通电桥配置布线,并且这些计量器的惠斯通电桥输出与轴向力成比例。

    APPARATUS AND METHOD FOR ELIMINATING VARYING PRESSURE FLUCTUATIONS IN A PRESSURE TRANSDUCER
    7.
    发明申请
    APPARATUS AND METHOD FOR ELIMINATING VARYING PRESSURE FLUCTUATIONS IN A PRESSURE TRANSDUCER 有权
    用于消除压力变送器中变化的压力波动的装置和方法

    公开(公告)号:US20100018319A1

    公开(公告)日:2010-01-28

    申请号:US12574587

    申请日:2009-10-06

    IPC分类号: G01L7/10 G01L9/06

    CPC分类号: G01L19/0609 G01L13/025

    摘要: A single pressure sensing capsule has a reference pressure ported to the rear side of a silicon sensing die. The front side of the silicon sensing die receives a main pressure at another port. The silicon sensing die contains a full Wheatstone bridge on one of the surfaces and within the active area designated as the diaphragm area. Thus, the difference of the main and reference pressure results in the sensor providing an output equivalent to the differential pressure, namely the main pressure minus the reference pressure which is the stress induced in a sensing diaphragm. In any event, the reference pressure or main pressure may be derived from a pump pressure which is being monitored. The pump pressure output is subjected to a pump ripple or a sinusoidally varying pressure. In order to compensate for pump ripple, one employs a coiled tube. The tube length is selected to suppress the pump ripple as applied to the sensor die. In this manner, the pump ripple cannot cause resonance which would result in pressure amplification and which pressure amplification would destroy the sensor.

    摘要翻译: 单个压力感测胶囊具有移动到硅感测裸片的后侧的参考压力。 硅感测模具的前侧在另一端口处接收主压力。 硅感测裸片在其中一个表面上以及指定为隔膜区域的有源区域内包含一个完整的惠斯通电桥。 因此,主要和参考压力的差异导致传感器提供与差压相当的输出,即主压力减去在感测膜片中感应的应力的参考压力。 无论如何,参考压力或主要压力可以从正被监测的泵压力导出。 泵压力输出受到泵波动或正弦变化的压力。 为了补偿泵波动,采用一个盘管。 选择管长度以抑制应用于传感器管芯的泵波动。 以这种方式,泵波动不会引起共振,这将导致压力放大,哪个压力放大会破坏传感器。

    Torque insensitive header assembly
    8.
    发明授权
    Torque insensitive header assembly 失效
    扭矩不敏感头部组件

    公开(公告)号:US08286495B2

    公开(公告)日:2012-10-16

    申请号:US13010837

    申请日:2011-01-21

    IPC分类号: G01L9/06

    摘要: There is disclosed a high pressure sensing header which is relatively insensitive to mounting torque. The header comprises an outer torque isolating shell which surround an inner “H” section header. The inner “H” section header has a thick diaphragm and is surrounded by the torque isolating shell which is secured to the “H” section header at a peripheral flange of the “H” section header. In this manner when the header is installed, the installation force is absorbed by the outer shell and there is no installation force or torque exhibited by the inner “H” section which will respond only to stress due to pressure. The torque isolating shell also contains a top surface which has a counterbore that accommodates a crush ring. When the unit is installed, the crush ring is crushed against an installation wall to enable the inner header to receive pressure without experiencing significant installation force.

    摘要翻译: 公开了一种对安装扭矩相对不敏感的高压感测头。 头部包括围绕内部H部分头部的外部扭矩隔离壳体。 内部H部分头部具有厚的隔膜,并被扭矩隔离壳围绕,该扭矩隔离壳体在H部分头部的周边凸缘处固定到H部分头部。 以这种方式,当安装头部时,安装力被外壳吸收,并且没有由内部H部分表现出的安装力或扭矩,其仅响应于由于压力引起的应力。 扭矩隔离壳体还包括具有容纳压溃环的沉孔的顶表面。 当装置安装时,挤压环被压在安装壁上,以使内部集管接收压力,而不会受到显着的安装力。

    TORQUE INSENSITIVE HEADER ASSEMBLY
    9.
    发明申请
    TORQUE INSENSITIVE HEADER ASSEMBLY 有权
    扭矩敏感头组件

    公开(公告)号:US20120060618A1

    公开(公告)日:2012-03-15

    申请号:US13256874

    申请日:2010-05-04

    IPC分类号: G01L9/04 G01L7/08

    摘要: There is disclosed a high pressure sensing header which is relatively insensitive to mounting torque. The header generally includes an outer torque isolating shell which has a “C” shaped cross section with the cylindrical shell surrounding an inner “H” section header. The inner “H” section header has a thick diaphragm and is at least partially surrounded by the torque isolating shell. In this manner, when the header is installed, the installation force is absorbed by the outer shell and there is relatively no installation force or torque exhibited by the inner “H” section which will respond only to stress due to pressure.

    摘要翻译: 公开了一种对安装扭矩相对不敏感的高压感测头。 头部通常包括具有“C”形横截面的外部扭矩隔离壳体,圆柱形壳体围绕内部“H”形部分头部。 内部“H”部分头部具有厚的隔膜并且至少部分地被扭矩隔离壳包围。 以这种方式,当安装头部时,安装力被外壳吸收,并且相对没有内部“H”部分表现出的安装力或扭矩,其仅响应于由于压力引起的应力。

    Joystick sensor apparatus
    10.
    发明授权

    公开(公告)号:US07516675B2

    公开(公告)日:2009-04-14

    申请号:US11824920

    申请日:2007-07-03

    IPC分类号: G01D7/00

    CPC分类号: G01L5/223 G05G2009/04762

    摘要: A joystick apparatus employs a hermetically sealed load cell having strain gauges placed on flexible beams formed on the load cell. All of the strain gauges are on the same surface of the load cell and therefore wiring is performed on a single side of the load cell. The strain gauges are enclosed in hermetically sealed cavity. The sensing diaphragm consists of a concentric thick inner and outer section joined by thinner diametrically opposed beam elements. The thin beam elements are compliant members which can deflect. Each beam includes strain gauges or sensor elements and the load cell is coupled to a joystick which when moved causes the beams to deflect to cause the sensor elements to produce an electrical output proportional to the force and direction of the joystick. The sensor can yield an output proportional to any angle over the 360° movement of the joystick to provide outputs proportional to the X and Y positions of said joystick. Thus, the joystick arrangement can resolve any angle or force into X and Y components for full directional control.