一种具有检测预紧力功能的地脚固定装置

    公开(公告)号:CN108709676A

    公开(公告)日:2018-10-26

    申请号:CN201810394112.8

    申请日:2018-04-27

    CPC classification number: G01L5/24 F16B37/00 G01L1/183

    Abstract: 本发明公开了一种具有检测预紧力功能的地脚固定装置,包括设置在地面混凝土层内的地脚螺栓、设置在地脚螺栓螺纹端的智能螺母,智能螺母还与阻抗仪连接;智能螺母上还设有安装槽,安装槽内设有压电材料和连接导线,连接导线与压电材料连通,智能螺母通过连接导线与阻抗仪连通。本发明的优点在于:其通过其侧面内置的压电材料阻抗峰值频率变化来监测螺栓联接的预紧力,主要针对螺栓预紧力不易测量以及传统检测方法测量时存在误差较大、测量效率低、无法在线测量等问题,提出了一种在螺母侧面内置压电材料的智能螺母的设计。该装置使用方便、操作简单,提高了测量效率,可以广泛地用于各种关键部位螺栓联接处的螺栓预紧力的在线监测。

    振动型力检测传感器以及振动型力检测装置

    公开(公告)号:CN102243077A

    公开(公告)日:2011-11-16

    申请号:CN201110100856.2

    申请日:2011-04-21

    Inventor: 佐藤健太

    CPC classification number: G01C19/5656 G01L1/165 G01L1/183 G01P15/097

    Abstract: 本发明提供振动型力检测传感器和振动型力检测装置。构造简单、低功耗、低成本且响应速度快。振动型力检测传感器的特征是具有:压电基板以及在该压电基板的至少一个主面上形成有电极膜的压电振动元件、以单臂支承的方式支承压电振动元的基台、和安装在压电振动元件的自由端部上的质量部。压电基板具备:振动部和分别支承该振动部的两端部的支承部,质量部被安装在一个上述支承部上。压电振动元件经由具有粘性的粘接剂而以与基台的一个主面并排的方式被单臂支承,使得当与基台的一个主面垂直的方向的力作用时,振动部与上述主面之间的间隙发生变化,从而振动部的等效电阻发生变化。

    静电驱动双接动梁式力传感器

    公开(公告)号:CN1054485A

    公开(公告)日:1991-09-11

    申请号:CN90101021.9

    申请日:1990-02-27

    CPC classification number: G01P15/097 G01L1/10 G01L1/183 Y10S73/01

    Abstract: 具有静电驱动系统的双振动梁式的力传感器,它包括一个本体12,该本体包括基本上平行的第一和第二梁20、22,它们的端部是连在一起的,第一和第二电极14、16,相邻于但都不与各自的梁接触;驱动电路18,它产生振荡电压施加到电极上。梁经受静电力使梁在包含两梁的一个振动平面内产生振荡。梁的机械谐振控制谐振频率,该频率里沿梁施加的力的函数。在所述的一个实施例中,驱动装置还可以直接连接到一个梁上。

    DIELECTRICALLY ISOLATED RESONANT MICROSENSORS
    17.
    发明申请
    DIELECTRICALLY ISOLATED RESONANT MICROSENSORS 审中-公开
    电介质隔离型MICROSENSORS

    公开(公告)号:WO1995004265A2

    公开(公告)日:1995-02-09

    申请号:PCT/US1994008258

    申请日:1994-07-22

    Applicant: HONEYWELL INC.

    Abstract: A resonant strain gauge includes a silicon substrate, a polysilicon flexure beam fixed at both ends relative to the substrate, and a polysilicon rigid cover cooperating with the substrate to enclose the flexure beam within a sealed vacuum chamber. An upper bias electrode is formed on the cover, and a lower bias electrode is formed at the bottom of a trough in the substrate directly beneath the flexure beam. A drive electrode and a piezoresistive element are supported by the beam, formed over a silicon nitride thin film layer deposited onto the top surface of the flexure beam. A second silicon nitride layer covers the drive electrode and piezoresistor, cooperating with the first silicon nitride layer to dielectrically encapsulate the drive electrode and piezoresistor. The silicon nitride further extends outwardly of the beam to a location between the polysilicon layer that contains the beam, and the cover, to isolate the cover from the flexure beam. A polysilicon film is applied over the upper silicon nitride layer as a passivation layer to protect the silicon nitride during gauge fabrication. The process for fabricating the gauge includes a sequence of applying the various polysilicon and silicon nitride layers by low pressure chemical vapor deposition, in combination with selective etching to define the flexure beam, electric circuit components and vacuum chamber.

    Abstract translation: 共振应变计包括硅衬底,相对于衬底的两端固定的多晶硅弯曲梁,以及与衬底配合的多晶硅刚性盖,以将挠曲梁封闭在密封的真空室内。 在盖上形成上部偏置电极,并且在弯曲梁正下方的基板的底部的底部形成下部偏置电极。 驱动电极和压阻元件由光束支撑,形成在沉积在挠曲束的顶表面上的氮化硅薄膜层上。 第二氮化硅层覆盖驱动电极和压电电阻器,与第一氮化硅层配合以介电地封装驱动电极和压敏电阻器。 氮化硅进一步从梁的外侧延伸到包含梁的多晶硅层与盖之间的位置,以将盖与弯曲梁隔离。 将多晶硅膜施加在上部氮化硅层上作为钝化层,以在量规制造期间保护氮化硅。 用于制造该量规的方法包括通过低压化学气相沉积施加各种多晶硅和氮化硅层的顺序,与选择性蚀刻结合以限定挠曲束,电路部件和真空室。

    속도 및 차선의 변경을 고려한 주행 차량의 무게 측정 시스템 및 그 측정 방법
    19.
    发明公开
    속도 및 차선의 변경을 고려한 주행 차량의 무게 측정 시스템 및 그 측정 방법 有权
    一个重量测量系统及其在改变地面和改变驾驶速度的时候的方法

    公开(公告)号:KR1020120053754A

    公开(公告)日:2012-05-29

    申请号:KR1020100115034

    申请日:2010-11-18

    Inventor: 박제우 김영백

    CPC classification number: G01G19/03 G01G3/165 G01G19/62 G01L1/183

    Abstract: PURPOSE: A system and a method for measuring weight of a traveling vehicle in consideration of change of speed and lanes are provided to accurately measure a weight of a vehicle even though the centroid of the vehicle is inclined toward the left side or right side because a weight value measured by a piezo-sensor is revised according to an acceleration value. CONSTITUTION: A system for measuring weight of a traveling vehicle in consideration of change of speed and lanes comprises three piezo sensor groups(P10,P20,P30) arranged lengthways side by side at constant intervals, a pair of loop sensor groups(L10,L20) arranged in the outer side around the piezo-sensor groups at constant intervals, a pair of the piezo sensor groups(P40,P50) arranged in the outer side of the loop sensor groups at constant intervals, a pair of the loop sensor groups(L30,L40) arranged in the outer side of the piezo sensor groups at constant intervals, and a server. The server receives information from loop sensor groups and calculates a weight of a vehicle by multiplying left and right bias correction coefficients by the weight of the left and right wheels.

    Abstract translation: 目的:提供考虑到速度和车道变化来测量行驶车辆的重量的系统和方法,以精确地测量车辆的重量,即使车辆的重心向左侧或右侧倾斜,因为 由压电传感器测量的重量值根据加速度值进行修正。 考虑到速度和车道变化来测量行驶车辆的重量的系统包括以恒定间隔并排布置的三个压电传感器组(P10,P20,P30),一对环路传感器组(L10,L20 )以一定间隔布置在压电传感器组周围的外侧中,布置在环传感器外侧的一对压电传感器组(P40,P50)以恒定间隔组合,一对环传感器组 L30,L40)和服务器。 服务器从环路传感器组接收信息,并通过将左右偏置校正系数乘以左右车轮的重量来计算车辆的重量。

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