Force transducer assembly
    1.
    发明授权
    Force transducer assembly 有权
    力传感器组件

    公开(公告)号:US06446510B1

    公开(公告)日:2002-09-10

    申请号:US09624084

    申请日:2000-07-24

    IPC分类号: G01N300

    摘要: A force transducer assembly for measuring compressive and tensile loads applied to a force transmission device, the assembly includes a housing, a sleeve assembly and a sensor device. The housing has a hollow interior. The sleeve assembly is coupled within the interior of the housing. The sensor device is secured within the interior of the housing between a portion of the sleeve assembly and a portion of the housing. The sensor device includes first and second sensors each including an isolation diaphragm at least partially defining an oil-filled cavity, and a piezoresistive sensor positioned so as to be effected by a change in pressure in the oil-filled cavity. When a first force is applied to the apparatus in a first direction via the force transmission device, one of the isolation diaphragms is deflectable in response thereto, and when a second force is applied in a second direction opposite to the first direction, the other of the isolation diaphragms is deflectable in response thereto. This causes a corresponding output from the sensor assembly. The first direction exerts a push on the device and the second direction exerts a pull on the device.

    摘要翻译: 用于测量施加到力传递装置的压缩和拉伸载荷的力传感器组件,所述组件包括壳体,套筒组件和传感器装置。 外壳有一个中空的内部。 套筒组件联接在壳体的内部。 传感器装置固定在壳体的内部之中,套筒组件的一部分与壳体的一部分之间。 传感器装置包括第一和第二传感器,每个传感器包括至少部分地限定充油空腔的隔离膜片,以及压电传感器,其被定位以便通过充油空腔中的压力变化来实现。 当通过力传递装置向第一方向施加第一力时,隔离隔膜中的一个可响应于该第一方向而偏转,并且当在与第一方向相反的第二方向上施加第二力时,另一方 隔离隔膜可响应于此而偏转。 这将导致传感器组件的相应输出。 第一个方向在设备上施加推力,第二个方向在设备上施加拉力。

    Dual purpose pressure sensor
    2.
    发明申请

    公开(公告)号:US20100083767A1

    公开(公告)日:2010-04-08

    申请号:US12074314

    申请日:2008-10-06

    IPC分类号: G01L9/12 G01L9/06

    摘要: A pressure transducer, particularly adapted to measure the pressure in a tire and to enable the tire to be filled includes a first housing, having an internal hollow. Positioned in the hollow of the first housing is a second housing, also having an internal hollow. The second housing is supported within the first housing so that a passageway for airflow exists between the housings. The second housing has a pressure port for monitoring the pressure of a tire. The first housing has an inlet port for receiving a source of pressure. The inlet port contains a valve which is selectively operated. The valve, when operated, permits air to flow into the hollow of the first housing and to flow about the periphery of the second housing to enter the pressure port associated with the second housing. The pressure port may, as indicated, be associated with a tire and the second housing contains a pressure sensing device which monitors the pressure in the tire via the pressure port. In this manner, the pressure in the tire can be monitored while additional air can be added through the valve which air flows around the second housing to enter the tire or other device coupled to the pressure transducer.

    Multiple axis load cell controller
    3.
    发明申请
    Multiple axis load cell controller 有权
    多轴称重传感器控制器

    公开(公告)号:US20090301217A1

    公开(公告)日:2009-12-10

    申请号:US12157029

    申请日:2008-06-06

    IPC分类号: G01N3/22

    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
    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。

    Multiple axis load cell controller
    5.
    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
    6.
    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。

    Dual purpose pressure sensor
    7.
    发明授权
    Dual purpose pressure sensor 有权
    双用途压力传感器

    公开(公告)号:US07779682B2

    公开(公告)日:2010-08-24

    申请号:US12074314

    申请日:2008-10-06

    IPC分类号: B60C23/02

    摘要: A pressure transducer, particularly adapted to measure the pressure in a tire and to enable the tire to be filled includes a first housing, having an internal hollow. Positioned in the hollow of the first housing is a second housing, also having an internal hollow. The second housing is supported within the first housing so that a passageway for airflow exists between the housings. The second housing has a pressure port for monitoring the pressure of a tire. The first housing has an inlet port for receiving a source of pressure. The inlet port contains a valve which is selectively operated. The valve, when operated, permits air to flow into the hollow of the first housing and to flow about the periphery of the second housing to enter the pressure port associated with the second housing. The pressure port may, as indicated, be associated with a tire and the second housing contains a pressure sensing device which monitors the pressure in the tire via the pressure port. In this manner, the pressure in the tire can be monitored while additional air can be added through the valve which air flows around the second housing to enter the tire or other device coupled to the pressure transducer.

    摘要翻译: 特别适用于测量轮胎中的压力并使轮胎能够被填充的压力传感器包括具有内部空心的第一壳体。 位于第一壳体的中空部分中的是具有内部空心的第二壳体。 第二壳体被支撑在第一壳体内,使得在壳体之间存在气流通道。 第二壳体具有用于监测轮胎压力的压力端口。 第一壳体具有用于接收压力源的入口。 入口端口包含选择性操作的阀。 该阀在操作时允许空气流入第一壳体的中空部并且绕第二壳体的周边流动以进入与第二壳体相关联的压力端口。 如图所示,压力端口可以与轮胎相关联,并且第二壳体包含经由压力端口监测轮胎中的压力的​​压力感测装置。 以这种方式,可以监测轮胎中的压力,同时可以通过阀添加额外的空气,其中空气围绕第二壳体流动以进入轮胎或联接到压力传感器的其它装置。

    APPARATUS AND METHOD FOR ELIMINATING VARYING PRESSURE FLUCTUATIONS IN A PRESSURE TRANSDUCER
    8.
    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:US20110185818A1

    公开(公告)日:2011-08-04

    申请号:US13084850

    申请日:2011-04-12

    IPC分类号: G01L9/06

    CPC分类号: G01L7/022 G01L9/06

    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 difference between the main and reference pressure results in the sensor providing an differential pressure output. 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, a coiled tube or an adjustable dampening chamber comprising a spiral inlet tube and a volume cavity can be used. 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。 主压力和参考压力之间的差异导致传感器提供差压输出。 参考压力或主要压力可以从正被监控的泵压力导出。 泵压力输出受到泵波动或正弦变化的压力。 为了补偿泵浦波动,可以使用包括螺旋入口管和体积腔的盘管或可调节的减振室。 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。

    Apparatus and method for eliminating varying pressure fluctuations in a pressure transducer
    9.
    发明授权
    Apparatus and method for eliminating varying pressure fluctuations in a pressure transducer 失效
    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:US07597004B1

    公开(公告)日:2009-10-06

    申请号:US12151816

    申请日:2008-05-09

    IPC分类号: G01L7/08

    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。

    Pressure scanner assemblies having replaceable sensor plates
    10.
    发明授权
    Pressure scanner assemblies having replaceable sensor plates 有权
    压力扫描器组件具有可更换的传感器板

    公开(公告)号:US09372131B2

    公开(公告)日:2016-06-21

    申请号:US13184613

    申请日:2011-07-18

    IPC分类号: G06F19/00 G01L15/00

    CPC分类号: G01L15/00 G01L9/0052

    摘要: A pressure scanner assembly having at least one replaceable sensor plate, wherein each of the replaceable sensor plates has at least one pressure sensor adapted to transmit a signal substantially indicative of a sensed pressure condition. A memory chip, which stores correction coefficients for each of the pressure sensor to compensate for thermal errors, may be installed on each of the replaceable sensor plates. The signals from the pressure sensors are multiplexed and may be outputted in analog or digital form. The pressure scanner assemblies described herein have sensor plates that can be interchanged with other sensor plates of the same or different pressure range without disrupting the electronic configuration of the pressure scanner assembly or having to recalibrate and/or update the memory chip installed thereon.

    摘要翻译: 一种具有至少一个可更换的传感器板的压力扫描器组件,其中每个可更换传感器板具有至少一个压力传感器,其适于传输基本上指示感测到的压力状况的信号。 存储芯片,其存储用于每个压力传感器以补偿热误差的校正系数,可以安装在每个可更换传感器板上。 来自压力传感器的信号被复用并且可以以模拟或数字形式输出。 本文所述的压力扫描器组件具有可以与相同或不同压力范围的其他传感器板互换的传感器板,而不会中断压力扫描器组件的电子配置或必须重新校准和/或更新安装在其上的存储器芯片。