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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
Applicant: 武汉科技大学
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。
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公开(公告)号:CN102680578B
公开(公告)日:2017-11-14
申请号:CN201210026055.0
申请日:2012-02-07
Applicant: 波音公司
IPC: G01N29/07
CPC classification number: G01N29/07 , G01L1/16 , G01L1/183 , G01M5/00 , G01N2291/0258 , G01N2291/103 , G01N2291/2694
Abstract: 本发明涉及结构健康监测系统,例如用于飞机结构的无损评估的系统。本发明提供一种使用结构健康监测系统评估结构内部的一个或更多个异常处的方法和装置,该结构健康监测系统包括可操作地与该结构接触布置的至少三个换能器,使得任何两个换能器都不平行对准。换能器激励穿过该结构传播的弹性波,并且来自结构内部的任何异常处的反射被三个换能器收集。这些收集的信号被分析以识别结构内部的异常处。渡越时间技术被用于确定异常处的位置。
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公开(公告)号:CN102680578A
公开(公告)日:2012-09-19
申请号:CN201210026055.0
申请日:2012-02-07
Applicant: 波音公司
IPC: G01N29/07
CPC classification number: G01N29/07 , G01L1/16 , G01L1/183 , G01M5/00 , G01N2291/0258 , G01N2291/103 , G01N2291/2694
Abstract: 本发明涉及结构健康监测系统,例如用于飞机结构的无损评估的系统。本发明提供一种使用结构健康监测系统评估结构内部的一个或更多个异常处的方法和装置,该结构健康监测系统包括可操作地与该结构接触布置的至少三个换能器,使得任何两个换能器都不平行对准。换能器激励穿过该结构传播的弹性波,并且来自结构内部的任何异常处的反射被三个换能器收集。这些收集的信号被分析以识别结构内部的异常处。渡越时间技术被用于确定异常处的位置。
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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
Applicant: 精工爱普生株式会社
Inventor: 佐藤健太
IPC: G01C19/56
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。
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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
Applicant: 标准数据控制公司
IPC: G01L1/10
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。
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公开(公告)号:WO2007127132A3
公开(公告)日:2008-10-23
申请号:PCT/US2007009624
申请日:2007-04-19
Applicant: ASF KEYSTONE INC , LEFEBVRE WILLIAM , MCCANN MICHAEL J , BACKO III FRANK , MARTIN ANDREW H
Inventor: LEFEBVRE WILLIAM , MCCANN MICHAEL J , BACKO III FRANK , MARTIN ANDREW H
CPC classification number: G01D21/02 , B61F5/305 , B61F5/32 , B61L15/0027 , B61L15/0081 , B61L27/0094 , F16C41/007 , F16C41/008 , F16C2326/10 , G01D11/245 , G01G19/12 , G01G23/3728 , G01L1/183 , G01L5/0085 , G01L5/107 , G01L5/243 , G01L5/28 , G01L9/0022
Abstract: A sensor interface (10) is disclosed including a flexible substrate (12) within which are embedded sensors (22, 24, 26) for measuring physical parameters such as temperature, displacement, velocity, acceleration, stress, strain, pressure and force present between objects (18, 20) such as a railcar bearing (44) and a truck side frame (48) The substrate (12) is positioned between the objects ( 18, 20) of interest Electronic components such as a data processing unit (28), a data storage device (32), a communication device (34), and a power source (38) may also be embedded within the substrate The electronic devices (28, 32, 34, 38) communicate with one another and the sensors (22, 24, 26) to process signals generated by the sensors (22, 24, 26) indicative of the parameters being measured.
Abstract translation: 公开了一种传感器接口(10),其包括柔性基底(12),其中嵌入有传感器(22,24,26),用于测量诸如温度,位移,速度,加速度,应力,应变,压力和力之间的物理参数 诸如轨道车轴承(44)和卡车侧框架(48)的物体(18,20)。基板(12)位于感兴趣的物体(18,20)之间,诸如数据处理单元(28)的电子部件 ,数据存储装置(32),通信装置(34)和电源(38)也可以嵌入在基板内。电子装置(28,32,34,38)彼此通信,并且传感器 22,24,26)来处理由传感器(22,24,26)产生的指示所测量的参数的信号。
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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.
Inventor: HONEYWELL INC. , BURNS, David, W.
IPC: G01N00/00
CPC classification number: H04R17/025 , G01L1/183 , G01L9/0019 , G01P15/0802 , G01P15/097 , G01P2015/0828
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。
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公开(公告)号:WO1994014035A1
公开(公告)日:1994-06-23
申请号:PCT/US1993011889
申请日:1993-12-08
Applicant: ALLIEDSIGNAL, INC.
Inventor: ALLIEDSIGNAL, INC. , HULSING, Rand, H., II , LEE, Charles, K. , FOOTE, Steven, A.
IPC: G01D21/02
CPC classification number: G01P15/097 , G01D21/02 , G01K7/32 , G01L1/183 , G01P2015/0817 , G01P2015/0828
Abstract: A combined transducer that measures force or displacement and temperature utilizes a pair of vibrating tines to provide a simultaneous output representative of temperature and force or displacement whereby the sum or average of the vibrating frequencies of the two tines is representative of temperature and the difference is representative of force or displacement.
Abstract translation: 测量力或位移和温度的组合传感器利用一对振动齿来提供代表温度和力或位移的同时输出,由此两个尖齿的振动频率的和或平均值代表温度,差异是代表性的 的力量或位移。
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19.
公开(公告)号:KR1020120053754A
公开(公告)日:2012-05-29
申请号:KR1020100115034
申请日:2010-11-18
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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公开(公告)号:KR101229432B1
公开(公告)日:2013-02-05
申请号:KR1020087025608
申请日:2007-04-19
Applicant: 에이에스에프-키스톤, 인코포레이티드
Inventor: 레페브레,윌리암 , 맥칸,미첼,제이. , 바코3세,프랑크 , 마틴,앤드류,에이치.
CPC classification number: G01D21/02 , B61F5/305 , B61F5/32 , B61L15/0027 , B61L15/0081 , B61L27/0094 , F16C41/007 , F16C41/008 , F16C2326/10 , G01D11/245 , G01G19/12 , G01G23/3728 , G01L1/183 , G01L5/0085 , G01L5/107 , G01L5/243 , G01L5/28 , G01L9/0022
Abstract: 레일카 베어링과 트럭 측부 프레임 같은 대상물들 사이에 존재하는 온도, 변위, 속도, 가속도, 응력, 변형, 압력 및 힘 같은 물리적 파라미터를 측정하기 위해 센서가 내부에 매설되어 있는 가요성 기판을 포함하는 센서 인터페이스가 개시되어 있다. 기판은 관련 대상물 사이에 배치된다. 데이터 처리 유닛, 데이터 저장 장치, 통신 장치 및 전원 같은 전자 구성요소도 기판 내에 매설될 수 있다. 전자 장치는 측정된 파라미터를 나타내는 센서에 의해 발생된 신호를 처리하기 위해 서로간에, 그리고, 센서와 통신한다.
가요성 기판, 센서 인터페이스, 데이터 처리 유닛, 데이터 저장 장치, 통신 장치, 전자 구성요소Abstract translation: 公开了一种传感器接口,其包括柔性基板,其中嵌入有传感器,用于测量诸如轨道车轴承和卡车侧框架之类的物体之间的物理参数,例如温度,位移,速度,加速度,应力,应变,压力和力。 衬底位于感兴趣的对象之间也可以嵌入在衬底内的电子部件,例如数据处理单元,数据存储设备,通信设备和电源。 电子设备彼此通信,并且传感器处理由传感器产生的指示所测量的参数的信号。
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