Leadless oil filled pressure transducer
    71.
    发明申请
    Leadless oil filled pressure transducer 有权
    无铅充油压力传感器

    公开(公告)号:US20100257937A1

    公开(公告)日:2010-10-14

    申请号:US12384828

    申请日:2009-04-09

    Inventor: Anthony D. Kurtz

    Abstract: An oil filled pressure transducer which exhibits reduced backpressure and utilizes a smaller volume of oil employs a glass pre-form which has a plurality of pin accommodating apertures and has an oil tube accommodating aperture. There are a plurality of contact pins inserted into the pin accommodating apertures and which extend from the top to the bottom surfaces of the pre-form. There is an oil fill tube inserted into the oil tube accommodating aperture, which oil fill tube extends from the bottom to the top surface of the pre-form with one end of the tube extending above the top surface of the pre-form. There is a glass alignment plate which has an alignment aperture for encircling the extended oil fill tube and has a sensor accommodating shaped aperture located at a predetermined position from said alignment aperture. When the glass alignment plate is being accommodated on the top surface of the pre-form by inserting the alignment aperture about the oil tube, the position of a sensor module is accurately determined based on the position of the sensor accommodating aperture. A sensor module is now placed in the shaped aperture of the alignment plate and makes contact with the pins to enable the sensor contacts to contact the pins. A header surrounds the sensor as positioned on the glass pre-form and a diaphragm is then placed to cover the top surface of the header to create a space between the top surface and the sensor. This space contains oil which is placed in the space by the oil fill tube. Due to the presence of the glass alignment plate, which has a given thickness, the volume of oil now required is much less than the volume required in the prior art, thus substantially reducing backpressure and further assuring that the sensor device is always properly aligned with respect to the pins.

    Abstract translation: 具有降低的背压并且使用较小体积的油的充油压力传感器采用具有多个销容纳孔并具有油管容纳孔的玻璃预制件。 插入销钉容纳孔中的多个接触销并且从预成型件的顶部到底部表面延伸。 插入油管容纳孔中的充油管,该油填充管从预成型件的底部延伸到顶部表面,管的一端在预成型件的顶部表面上方延伸。 有一个玻璃校准板,它有一个对准孔,用于环绕延伸的油料填充管,并具有一个传感器,该传感器容纳成形孔,位于距所述对准孔的预定位置。 当通过在油管周围插入对准孔将玻璃校准板容纳在预成型件的顶表面上时,基于传感器容纳孔的位置来精确地确定传感器模块的位置。 传感器模块现在被放置在对准板的成形孔中并且与销接触以使传感器触点能够接触销。 头部围绕传感器定位在玻璃预制件上,然后放置隔膜以覆盖头部的顶表面,以在顶表面和传感器之间形成空间。 该空间包含通过加油管放置在空间中的油。 由于存在具有给定厚度的玻璃对准板,现在所需的油的体积远低于现有技术中所需的体积,因此大大降低背压并进一步确保传感器装置始终与 尊重针脚。

    Combined wet-wet differential and gage transducer employing a common housing
    72.
    发明授权
    Combined wet-wet differential and gage transducer employing a common housing 有权
    组合湿湿差压和量规传感器采用共同的外壳

    公开(公告)号:US07775117B2

    公开(公告)日:2010-08-17

    申请号:US12316317

    申请日:2008-12-11

    Inventor: Anthony D. Kurtz

    CPC classification number: G01L19/0645 G01L15/00 G01L19/0038

    Abstract: A combined wet-wet differential transducer and a gage pressure transducer located in the same housing, comprising a semiconductor chip which comprises a gage sensor chip on one section and a differential sensor chip on a second section. Lach sensor chip has a Wheatstone bridge comprising piezoresistors and is responsive to an applied pressure. The gage chip and the differential chip are placed in a header having a front section and a back section adapted to receive a first and second pressure, respectively. A central section adjoins the front and back sections to form an H shaped header. The sensors are in communication with first and second pressure ports such that the absolute sensor provides an output indicative of a pressure applied to a first port and the differential sensor provides an output indicative of the pressure difference between the first and second pressure ports.

    Abstract translation: 一种组合的湿湿差压换能器和位于同一壳体中的量规压力传感器,包括半导体芯片,其包括一个部分上的量规传感器芯片和在第二部分上的差分传感器芯片。 Lach传感器芯片具有包括压敏电阻器的惠斯通电桥,并且响应于所施加的压力。 计量芯片和差分芯片被放置在具有分别适于接收第一和第二压力的前部分和后部部分的集管中。 中央部分邻接前部和后部,以形成H形头部。 传感器与第一和第二压力端口连通,使得绝对传感器提供指示施加到第一端口的压力的输出,并且差动传感器提供指示第一和第二压力端口之间的压力差的输出。

    Pressure transducers employing radiation hardened electronics
    73.
    发明申请
    Pressure transducers employing radiation hardened electronics 有权
    使用辐射硬化电子元件的压力传感器

    公开(公告)号:US20100200779A1

    公开(公告)日:2010-08-12

    申请号:US12322799

    申请日:2009-02-06

    Inventor: Anthony D. Kurtz

    CPC classification number: G01L19/0069 G01L19/069 G01L19/142

    Abstract: There is disclosed a transducer employing radiation hardened electronics. Essentially a sensor assembly is positioned in a front section of a housing where the sensor assembly is coupled to an electronic module via terminals which connect the sensor to the module. The electronic module assembly is surrounded by an internal tungsten housing which is formed from a first tungsten “U” shaped cross-sectional member coupled to a second tungsten “U” shaped cross-sectional enclosure. The two members are coupled together and totally surround the electronic assembly. The members as held together are positioned within the housing by outer shell members to form a complete housing assembly whereby the electronic assembly and its associated terminal pins are totally surrounded by the tungsten holder section and the tungsten enclosure section.

    Abstract translation: 公开了一种使用辐射硬化电子器件的传感器。 基本上,传感器组件位于壳体的前部,传感器组件通过将传感器连接到模块的端子耦合到电子模块。 电子模块组件由内部钨壳体围绕,该内部钨壳体由联接到第二钨“U”形横截面外壳的第一钨“U”形横截面构件形成。 两个构件联接在一起并且完全围绕电子组件。 保持在一起的构件通过外壳构件定位在壳体内以形成完整的壳体组件,由此电子组件及其相关联的端子销被钨保持器部分和钨壳体部分完全包围。

    Multiple axis load cell controller
    74.
    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

    Abstract: 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.

    Abstract translation: 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。

    Low differential pressure transducer
    75.
    发明授权
    Low differential pressure transducer 有权
    低压差传感器

    公开(公告)号:US07743662B2

    公开(公告)日:2010-06-29

    申请号:US12070255

    申请日:2008-02-14

    Inventor: Anthony D. Kurtz

    CPC classification number: G01L13/025 G01L19/0645

    Abstract: A pressure transducer has an H-shaped header having a front and a back section. The front and back sections are of equal diameter and are circular. Each front and back section has a depression with a diaphragm covering the depression. Each diaphragm is of equal size and the depressions communicate one with the other via a central channel in the central arm of the H. A pressure sensor communicates with the channel, where the pressure sensor responds to a first pressure applied to the first diaphragm and a second pressure applied to the second diaphragm. The pressure sensor produces an output equal to the difference in pressure. The differential pressure inducer having both diaphragms of the same size and still enabling leads from the sensor to be brought out.

    Abstract translation: 压力传感器具有H形头部,其具有前部和后部。 前部和后部的直径相等且为圆形。 每个前部和后部都有一个凹陷,一个隔膜覆盖着凹陷。 每个隔膜具有相同的尺寸,并且凹部通过H的中心臂中的中心通道彼此连通。压力传感器与通道连通,其中压力传感器响应于施加到第一隔膜的第一压力和 第二压力施加到第二隔膜。 压力传感器产生等于压力差的输出。 差压引导器具有相同尺寸的两个膜片,并且还能够使来自传感器的引线脱出。

    Low pass filter semiconductor structures for use in transducers for measuring low dynamic pressures in the presence of high static pressures
    76.
    发明申请
    Low pass filter semiconductor structures for use in transducers for measuring low dynamic pressures in the presence of high static pressures 有权
    用于传感器的低通滤波器半导体结构,用于在存在高静压的情况下测量低动态压力

    公开(公告)号:US20100139408A1

    公开(公告)日:2010-06-10

    申请号:US11716138

    申请日:2007-03-09

    CPC classification number: G01L7/08 G01L9/06 G01L13/025 G01L19/0609

    Abstract: A semiconductor filter is provided to operate in conjunction with a differential pressure transducer. The filter receives a high and very low frequency static pressure attendant with a high frequency low dynamic pressure at one end, the filter operates to filter said high frequency dynamic pressure to provide only the static pressure at the other filter end. A differential transducer receives both dynamic and static pressure at one input port and receives said filtered static pressure at the other port where said transducer provides an output solely indicative of dynamic pressure. The filter in one embodiment has a series of etched channels directed from an input end to an output end. The channels are etched pores of extremely small diameter and operate to attenuate or filter the dynamic pressure. In another embodiment, a spiral tubular groove is found between a silicon wafer and a glass cover wafer, an input port of the groove receives both the static and dynamic pressure with an output port of the groove providing only static pressure. The groove filters attenuate dynamic pressure to enable the differential transducer to provide an output only indicative of dynamic pressure by cancellation of the static pressure.

    Abstract translation: 提供半导体滤波器以与差压传感器一起操作。 过滤器在一端接收高频和低频静压泵,其一端具有高频低动态压力,滤波器操作以过滤所述高频动压,仅提供另一过滤端的静压力。 差分换能器在一个输入端口处接收动态和静态压力,并且在另一端口处接收所述过滤的静态压力,其中所述换能器提供仅指示动态压力的输出。 一个实施例中的滤波器具有从输入端指向输出端的一系列蚀刻通道。 通道是非常小直径的蚀刻孔,并且可以衰减或过滤动态压力。 在另一个实施例中,在硅晶片和玻璃盖晶片之间发现螺旋管状沟槽,槽的输入端口接收静态压力和动态压力,而槽的输出端口仅提供静态压力。 沟槽滤波器衰减动态压力,使得差分换能器仅通过消除静压来提供仅指示动态压力的输出。

    Leak detector for a pressurized cylinder
    77.
    发明授权
    Leak detector for a pressurized cylinder 有权
    泄漏检测器用于加压缸

    公开(公告)号:US07716964B2

    公开(公告)日:2010-05-18

    申请号:US11650686

    申请日:2007-01-08

    CPC classification number: G01M3/3236 B64C25/60

    Abstract: A leak detector apparatus for a pressurized cylinder having a cylinder of a radius (r) with a slidable piston in the cylinder with a gas filled chamber positioned between a cylinder end and the piston face. The length (L) of the chamber is calculated according to load changes on the piston where the volume (Vc) of the chamber changes. The pressure and temperature of the chamber are measured as well as the length. These values are inputted to a processor to solve the ideal gas law equation PV=nRT where a change in n for a change in length indicates a leak.

    Abstract translation: 一种用于加压缸的泄漏检测装置,其具有半径(r)的圆柱体,其中气缸中的可滑动活塞具有位于气缸端部和活塞面之间的充气室。 腔室的长度(L)根据腔室体积(Vc)改变的活塞上的负载变化计算。 测量室的压力和温度以及长度。 这些值被输入到处理器以求解理想气体定律方程PV = nRT,其中长度变化的n中的变化表示泄漏。

    Apparatus and methods for linearizing piezoresistive wheatstone bridges
    78.
    发明授权
    Apparatus and methods for linearizing piezoresistive wheatstone bridges 有权
    用于线性化压阻式惠斯通电桥的装置和方法

    公开(公告)号:US07714591B2

    公开(公告)日:2010-05-11

    申请号:US11512598

    申请日:2006-08-30

    CPC classification number: G01L9/0052 G01L9/06

    Abstract: A pressure sensing apparatus including: at least one deflectable diaphragm having a center, wherein each diaphragm supports: at least one positive piezoresistive gauge and at least one negative piezoresistive gauge coupled in series across a voltage differential in a half-Wheatstone bridge configuration having an output between the positive and negative piezoresistive gauges; and, a compensating piezoresistive gauge coupled in series with the half-Wheatstone bridge configuration across the voltage differential; wherein, the compensating piezoresistive gauge is nearer the center of the diaphragm than the negative piezoresitive gauge, the negative piezoresitive gauge is nearer the center of the diaphragm than the positive piezoresitive gauge, and the compensating piezoresistive gauge linearizes the half-Wheatstone bridge output.

    Abstract translation: 一种压力感测装置,包括:至少一个具有中心的可偏转隔膜,其中每个隔膜支撑:至少一个正压阻计和至少一个负压阻力表,其串联连接在半惠斯通电桥配置中的电压差下, 正,负压阻计之间; 以及与跨越电压差的半惠斯通电桥配置串联耦合的补偿压阻表; 其中,补偿压阻计比阴极压力表更接近隔膜的中心,负压电测量计比正压电测量仪更靠近隔膜的中心,补偿压阻测量仪将半惠斯通电桥输出线性化。

    METHOD AND APPARATUS FOR PREVENTING CATASTROPHIC CONTACT FAILURE IN ULTRA HIGH TEMPERATURE PIEZORESISTIVE SENSORS AND TRANSDUCERS
    79.
    发明申请
    METHOD AND APPARATUS FOR PREVENTING CATASTROPHIC CONTACT FAILURE IN ULTRA HIGH TEMPERATURE PIEZORESISTIVE SENSORS AND TRANSDUCERS 有权
    用于防止超高温绝缘传感器和传感器中的接触失效的方法和装置

    公开(公告)号:US20100107773A1

    公开(公告)日:2010-05-06

    申请号:US12686990

    申请日:2010-01-13

    Abstract: A piezoresistive sensor device and a method for making a piezoresistive device are disclosed. The sensor device comprises a silicon wafer having piezoresistive elements and contacts in electrical communication with the elements. The sensor device further comprises a contact glass coupled to the silicon wafer and having apertures aligned with the contacts. The sensor device also comprises a non-conductive frit for mounting the contact glass to a header glass, and a conductive non-lead glass frit disposed in the apertures and in electrical communication with the contacts. The method for making a piezoresistive sensor device, comprises bonding a contact glass to a silicon wafer such that apertures in the glass line up with contacts on the wafer, and filling the apertures with a non-lead glass frit such that the frit is in electrical communication with the contacts. The use of a lead free glass frit prevents catastrophic failure of the piezoresistive sensor and associated transducer in ultra high temperature applications.

    Abstract translation: 公开了压阻传感器装置和制造压阻器件的方法。 传感器装置包括具有压阻元件和与元件电连通的触点的硅晶片。 所述传感器装置还包括接触玻璃,所述接触玻璃联接到所述硅晶片并且具有与所述触点对准的孔。 传感器装置还包括用于将接触玻璃安装到集管玻璃的非导电玻璃料,以及设置在孔中并与触头电连通的导电非铅玻璃料。 用于制造压阻传感器装置的方法包括将接触玻璃接合到硅晶片,使得玻璃中的孔与晶片上的触点对齐,并用非铅玻璃料填充孔,使得玻璃料处于电 与联系人沟通。 使用无铅玻璃料防止压敏传感器和相关传感器在超高温应用中的灾难性故障。

    APPARATUS AND METHOD FOR ELIMINATING VARYING PRESSURE FLUCTUATIONS IN A PRESSURE TRANSDUCER
    80.
    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

    CPC classification number: G01L19/0609 G01L13/025

    Abstract: 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.

    Abstract translation: 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。

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