-
公开(公告)号：US07411338B1
公开(公告)日：2008-08-12
申请号：US11668544
申请日：2007-01-30
申请人： Terry M. Sanderson
发明人： Terry M. Sanderson
IPC分类号： H01L41/113
CPC分类号： G01N29/12 , G01M5/0041 , G01M5/0066 , G01N29/2475 , G01N2291/0231 , G01N2291/0232 , G01N2291/0235 , G01N2291/0258 , G01N2291/02827 , G01P15/0885 , G01P15/09
摘要： A load-bearing structural member has a continuous structural material with piezoelectric material particles mixed in throughout. The structural material may be any of a variety of suitable materials, such as polymer materials, composite materials, ceramic materials, or concrete. The piezoelectric material particles may be used for evaluating the soundness of the structural member, such as in quality control or structural health monitoring processes. The structural member may include one or more conductive pickups used for receiving signals from the structural member. The signals may be induced by introducing ultrasonic signals or vibrational resonance signals into the structural member. The response from such induced signals may be used for quality control purposes or structural health monitoring. Piezomagnetic, electro-strictive, or magneto-strictive material particles may also be spread throughout the structural material, to amplify and otherwise enhance the signals from the piezoelectric material particles.
摘要翻译： 承载结构件具有连续的结构材料，其压电材料颗粒整体混合。 结构材料可以是各种合适的材料中的任何一种，例如聚合物材料，复合材料，陶瓷材料或混凝土。 压电材料颗粒可以用于评价结构构件的稳定性，例如在质量控制或结构健康监测过程中。 结构构件可以包括用于从结构构件接收信号的一个或多个导电拾音器。 可以通过将超声波信号或振动共振信号引入到结构构件中来感应信号。 这种诱发信号的响应可用于质量控制目的或结构健康监测。 压电，电严格或磁致密材料颗粒也可以遍布整个结构材料，以放大或增强来自压电材料颗粒的信号。
-
公开(公告)号：US07282822B2
公开(公告)日：2007-10-16
申请号：US10518126
申请日：2003-05-28
申请人： Tord Cedell
发明人： Tord Cedell
IPC分类号： G01H11/02
CPC分类号： G01P15/0885 , G01H11/04
摘要： The disclosure relates to a method and an apparatus for sensing and indicating permanent state deviations via detection of temporary inner material oscillations in real time in parts of importance for hardware design and construction, within existing production equipment, e.g. machinery, and/or monitoring of previously built-up infrastructure. One or more at least approximately 20 μm thick amorphous or nanocrystalline band elements with high permeability and relatively high magnetostriction are applied to a pertinent part, the band element or elements, respectively, being at least partially surrounded by a multi-turn coil, such atomic movements (oscillations) as occur in any optional such state deviation in the part being transferred to the band element/elements. The deviation either gives rise to a clearly measurable and detectable magnetic flow change (dB/dt) in the coil in proportion to said atomic movements, or to a similarly measurable and detectable inductance change in the coil/coils.
摘要翻译： 本发明涉及一种用于通过在现有生产设备中的实际部件中硬件设计和构造的重要性实时检测临时内部材料振荡来检测和指示永久状态偏差的方法和装置，例如在现有的生产设备中。 机械和/或监控以前建成的基础设施。 具有高磁导率和相对高的磁致伸缩的一个或多个至少约20μm厚的非晶或纳米晶带元件分别施加到相关部分，带元件或元件分别至少部分被多匝线圈包围，这种原子 在所述部件中的任何可选的这种状态偏差中发生的移动（振荡）被转移到带元件/元件。 该偏差或者产生与所述原子运动成比例的线圈中明显可测量和可检测的磁流变化（dB / dt），或线圈/线圈中类似的可测量和可检测的电感变化。
-
公开(公告)号：US20060261917A1
公开(公告)日：2006-11-23
申请号：US11490324
申请日：2006-07-20
申请人： Steven Stuve
发明人： Steven Stuve
IPC分类号： H01F7/00
CPC分类号： B60R21/0136 , G01H11/04 , G01P15/0885 , G01P15/0891
摘要： A shock sensor has a housing with a Terfenol-D type sensing element positioned inside a sensing coil. A permanent biasing magnet is positioned in engagement with the Terfenol-D sensing element, and a spacer engages the Terfenol-D sensing element and extends from the housing. The housing has a beam with one or two mounting holes through which fasteners extend to mount the shock sensor to a structural member. The housing places the spacer in compression against the structural member. In an alternative embodiment a DC current can be supplied to the sensing coil to provide the biasing magnetic field. A high frequency filter separates the shock sensing signal from the applied DC biasing current.
-
公开(公告)号：US6131457A
公开(公告)日：2000-10-17
申请号：US287156
申请日：1999-04-06
申请人： Kaoru Sato
发明人： Kaoru Sato
CPC分类号： G01P15/105 , G01P15/0885 , G01P15/11 , G01P15/18 , G01P2015/084
摘要： A three-dimensional acceleration sensor having a magnetic body including a mass point, mounted to a vibrator having three-dimensional freedom and an axis in line with a Z-axis within the orthogonal spatial coordinate axes of X, Y and Z. The acceleration sensor includes four or more detector elements including at least two positioned along the X-axis and at least two positioned along the Y-axis with their centers located along a concentric circle around the origin point of the coordinate axes. The sensor detects acceleration in a direction of the X-axis through a relative difference in output voltage between two of the detector elements positioned along the X-axis due to a variation of magnetic field intensity from the magnetic body, acceleration in a direction of the Y-axis through a relative difference in output voltage between two of the detector elements positioned along the Y-axis, and acceleration in a direction of the Z-axis through an aggregate sum of the output voltages of all the detector elements. The acceleration sensor thus has a wide dynamic range as well as high detection accuracy, and may be produced having a reduced size.
摘要翻译： 一种三维加速度传感器，其具有包括质点的磁体，安装到具有三维自由度的振动器和在X，Y和Z的正交空间坐标轴内的Z轴的轴线。加速度传感器 包括四个或更多个检测器元件，包括沿着X轴定位的至少两个和沿着Y轴定位的至少两个，其中心沿着围绕坐标轴的原点的同心圆定位。 传感器通过由于来自磁体的磁场强度的变化而沿着X轴定位的两个检测器元件之间的输出电压的相对差异来检测X轴方向上的加速度， Y轴，通过沿着Y轴定位的两个检测器元件之间的输出电压的相对差，以及通过所有检测器元件的输出电压的总和的Z轴方向的加速度。 因此，加速度传感器具有宽动态范围以及高检测精度，并且可以制造具有减小的尺寸。
-
5.发明授权
公开(公告)号：US2511178A
公开(公告)日：1950-06-13
申请号：US52414244
申请日：1944-02-26
发明人： ROTERS HERBERT C
CPC分类号： H04R15/00 , G01B7/24 , G01D5/485 , G01L1/125 , G01L1/127 , G01L3/102 , G01L3/103 , G01L3/105 , G01L9/16 , G01P15/0885 , Y10S73/02 , Y10T74/1261 , Y10T74/1279
-
公开(公告)号：US5050135A
公开(公告)日：1991-09-17
申请号：US453867
申请日：1989-12-20
申请人： Ramdas M. Pai , James A. Beck
发明人： Ramdas M. Pai , James A. Beck
CPC分类号： G01D5/247 , G01B7/003 , G01D5/485 , G01P15/0885
摘要： A position monitoring device for accurately determining a plurality of distances, velocity or acceleration along a line using a plurality of electromagnets. The position monitoring device includes an ultrasound transducer disposed along a line, an ultrasound generator to provide an ultrasound wave pulse along the ultrasound transducer and a plurality of electromagnets disposed along the line at selected positions. The electromagnets generate a magnetic field which interacts with the ultrasound pulse to generate a reflected pulse. A sensor measures the time lapse between generation of the initial pulse and receipt of the reflected pulse, and electronic components convert the time lapse interval to a position measurement.
摘要翻译： 一种用于使用多个电磁体精确地确定沿着线的多个距离，速度或加速度的位置监视装置。 位置监测装置包括沿着一条线设置的超声波换能器，超声波发生器，用于沿着超声波换能器提供超声波脉冲，以及沿选定位置设置的多个电磁体。 电磁铁产生与超声脉冲相互作用以产生反射脉冲的磁场。 传感器测量初始脉冲的生成和反射脉冲的接收之间的时间间隔，电子部件将时间间隔转换为位置测量。
-
7.发明授权
公开(公告)号：US3838595A
公开(公告)日：1974-10-01
申请号：US34203573
申请日：1973-03-16
发明人： GODEFROY J
CPC分类号： G01P15/0885 , G01L1/125 , G01R33/1215 , G01R33/18 , Y10S73/02
摘要： A sensor with a digital electrical output based on the rotation of the axis of magnetization in a thin magnetostrictive film under the influence of a stress not colinear with said axis. The new orientation of the magnetization axis is detected by means of a pulsed step-by-step rotating interrogating magnetic field established by a printed circuit interrogating lead. When such field crosses the perpendicular to the magnetizaton axis, the binary signal induced in a printed read circuit switches from a first binary value to the second value. The count of the binary read pulses before switch over is a measure of the angular position of the magnetization axis.
摘要翻译： 具有数字电输出的传感器，其基于在与所述轴线不共线的应力的影响下的薄磁致伸缩膜中的磁化轴的旋转。 通过由印刷电路询问引线建立的脉冲逐步旋转询问磁场来检测磁化轴的新取向。 当这样的场穿过与磁化轴的垂直时，在打印的读取电路中感应的二进制信号从第一个二进制值切换到第二个值。 切换之前的二进制读取脉冲的计数是磁化轴的角位置的量度。
-
公开(公告)号：US3786674A
公开(公告)日：1974-01-22
申请号：US3786674D
申请日：1972-09-06
申请人： US ARMY
发明人： SKUJINS R
CPC分类号： G01H11/04 , G01P15/0885
摘要： A coaxial magnetostrictive accelerometer designed to sense mechanical vibration or acceleration and convert these vibrations or accelerations to a corresponding electrical signal is disclosed. A single accelerometer designed in accordance with this invention may be used to sense vibrations and accelerations or a very large number of accelerometers of this invention may be connected in series by sections of coaxial cable and used with single channel electronic sensing and measuring devices.
摘要翻译： 公开了一种设计用于感测机械振动或加速度并将这些振动或加速度转换为相应电信号的同轴磁致伸缩加速度计。 根据本发明设计的单个加速度计可用于感测振动和加速度，或者本发明的非常大量的加速度计可以通过同轴电缆的部分串联连接并与单通道电子感测和测量装置一起使用。
-
公开(公告)号：US3618399A
公开(公告)日：1971-11-09
申请号：US3618399D
申请日：1969-10-20
申请人： HONEYWELL INC
发明人： ASKE VERNON H
CPC分类号： G01P15/0888 , G01C19/42 , G01P3/26 , G01P3/49 , G01P7/00 , G01P15/0885
摘要： AN APPARTUS FOR MEASURING ANGULAR VELOCITY ABOUT ONE OR MORE AXES COMPRISING AN ANGULAR ACCELEROMETER ROTATED SO THAT THE ANGLE BETWEEN ITS SENSITIVE AXIS AND MEASUREMENT AXIS VARIES WITH TIME. THIS RELATIVE MOTION CAUSES THE ANGULAR ACCELEROMETER TO EXPERIENCE A TIME-VARYING ANGULAR RATE, I.E., ACCELERATION, ABOUT ITS SENSITIVE AXIS, WITH A COMPONENT OF ITS OUTPUT INDICATIVE OF THE RATE EXISTING ABOUT THE MEASUREMENT AXIS. THE OUTPUT OF THE FUNDAMETAL DEVICE IS MODULATED BY APPROPRIATE MEANS TO SELECT THE DESIRED COMPONENT.
-
公开(公告)号：US3168623A
公开(公告)日：1965-02-02
申请号：US85393159
申请日：1959-11-18
申请人： GULTON IND INC
发明人： PETERMANN LUCIEN A
IPC分类号： B06B1/06 , G01P15/08 , G01P15/09 , H01H57/00 , H01L41/09 , H03B5/34 , H03H9/46 , H03H9/54 , H03H9/56 , H04R17/00 , H04R17/04
CPC分类号： H04R17/04 , B06B1/0655 , G01P15/08 , G01P15/0885 , G01P15/09 , H01H57/00 , H01L41/09 , H01L41/0926 , H01L41/094 , H03B5/34 , H03H9/545 , H03H9/562 , H04R17/00
-
-
-
-
-
-
-
-
-
搜索结果
32 条记录 (耗时 0.011 秒)
