公开(公告)号：US20120204656A1

公开(公告)日：2012-08-16

申请号：US13369254

申请日：2012-02-08

Applicant: Hitoshi Suzuki

Inventor： Hitoshi Suzuki

IPC: G01L1/16

CPC classification number: G01L1/162 ,  G01L5/226 ,  Y10S901/46

Abstract: Provided is a piezoelectric vibration type force sensor including a vibration body including a disk-shaped piezoelectric material and a pair of drive electrodes, for vibrating in a radial direction of the piezoelectric material when an AC voltage is applied to the pair of drive electrodes, a substrate to be brought into contact with a surface on one side of the vibration body, an elastic member that is disposed to be brought into contact with a surface on another side of the vibration body, and a holding member including a contact portion and a loose-fit portion that loosely fits in the hollow through hole. The holding member fixes the contact portion and the loose-fit portion to the substrate so that movements of the vibration body in a vibration direction and in a direction orthogonal to the vibration direction are restricted for positioning.

Abstract translation: 提供一种压电振动型力传感器，其包括：振动体，其包括盘状压电材料和一对驱动电极，用于当对所述一对驱动电极施加AC电压时，在所述压电材料的径向方向上振动; 与振动体的一侧的表面接触的基板，设置成与振动体的另一侧接触的弹性部件，以及具有接触部和松动部的保持部件 - 松紧地装配在中空通孔中。 保持构件将接触部分和松配合部分固定到基底，使得振动体在振动方向和与振动方向正交的方向上的运动被限制用于定位。

公开(公告)号：US20120181900A1

公开(公告)日：2012-07-19

申请号：US13350577

申请日：2012-01-13

Applicant: Derek Wayne Puccio ,  Errol P. EerNisse

Inventor： Derek Wayne Puccio ,  Errol P. EerNisse

IPC: E21B47/06 ,  H01L41/22

CPC classification number: G01L9/0022 ,  G01L1/162 ,  G01L9/0016 ,  H01L41/1132 ,  H01L41/18 ,  Y10T29/42 ,  Y10T29/49005 ,  Y10T29/4902 ,  Y10T29/4908

Abstract: Arrays of resonator sensors include an active wafer array comprising a plurality of active wafers, a first end cap array coupled to a first side of the active wafer array, and a second end cap array coupled to a second side of the active wafer array. Thickness shear mode resonator sensors may include an active wafer coupled to a first end cap and a second end cap. Methods of forming a plurality of resonator sensors include forming a plurality of active wafer locations and separating the active wafer locations to form a plurality of discrete resonator sensors. Thickness shear mode resonator sensors may be produced by such methods.

Abstract translation: 谐振器传感器的阵列包括主动晶片阵列，其包括多个有源晶片，耦合到有源晶片阵列的第一侧的第一端盖阵列和耦合到有源晶片阵列的第二侧的第二端盖阵列。 厚度剪切模式谐振器传感器可以包括联接到第一端盖和第二端盖的活动晶片。 形成多个谐振器传感器的方法包括形成多个有源晶片位置并分离有源晶片位置以形成多个分立的谐振器传感器。 可以通过这种方法制造厚度剪切模式谐振器传感器。

公开(公告)号：US20120180567A1

公开(公告)日：2012-07-19

申请号：US13374759

申请日：2012-01-10

Applicant: Mitsuaki KOYAMA ,  Takeru MUTOH ,  Hiroki IWAI

Inventor： Mitsuaki KOYAMA ,  Takeru MUTOH ,  Hiroki IWAI

IPC: G01H13/00

CPC classification number: G01P15/097 ,  G01L1/142 ,  G01L1/162 ,  G01P1/00 ,  G01P1/006 ,  G01P1/023 ,  G01P15/125 ,  G01P2015/0828 ,  G01P2015/0871

Abstract: A technique for detecting external force applied to a piezoelectric plate is provided. A crystal plate is cantilever-supported in a container. Excitation electrodes are formed on an upper face and lower face, respectively, of the crystal plate. A movable electrode is formed on the lower face side. A fixed electrode is provided on a bottom portion of the container facing the movable electrode. The excitation electrode on the upper face side and the fixed electrode are connected to an oscillation circuit. When the crystal plate bends by external force applied, capacitance between. A direction of the movable electrode along a length direction of the crystal plate is set to 30° to 60°, relative to a face orthogonal to an intended direction of the external force. The movable electrode and fixed electrode changes, and this capacitance change and a deformation of the crystal circuit.

Abstract translation: 提供了一种用于检测施加到压电板的外力的技术。 水晶板悬臂支撑在容器中。 激励电极分别形成在晶体板的上表面和下表面上。 可动电极形成在下表面侧。 在面向可动电极的容器的底部设置固定电极。 上侧激励电极和固定电极连接到振荡电路。 当晶体板通过外力施加弯曲时，电容之间。 可移动电极沿着晶体板的长度方向的方向相对于与外力的预期方向正交的面设定为30°〜60°。 可动电极和固定电极发生变化，电容变化，晶体电路变形。

公开(公告)号：US20110113898A1

公开(公告)日：2011-05-19

申请号：US12743076

申请日：2009-01-20

Applicant: Shuuichi Sato ,  Yuichi Someya ,  Hideyuki Nishida ,  Takao Yokomatsu ,  Kentaro Nakamura

Inventor： Shuuichi Sato ,  Yuichi Someya ,  Hideyuki Nishida ,  Takao Yokomatsu ,  Kentaro Nakamura

IPC: G01L1/10 ,  G01L1/16

CPC classification number: G01L1/162 ,  H01L41/1132

Abstract: In a piezoelectric vibration type force sensor according to the present invention, vibration is restricted by a friction force between a piezoelectric body and a restricting member, and hence a range of sensing forces can be expanded compared with a case in which the vibration is restricted directly from a direction that is the same as an vibration direction. A conventional structure, in which a lead wire is soldered directly for electrically connecting the piezoelectric body to an external control circuit, causes a restriction of the vibration due to a solder attached to the piezoelectric body, resulting in narrowing the sensing range. Using the piezoelectric vibration type force sensor, the range of sensing forces can be expanded by making a state in which conducting portions of the piezoelectric body and the restricting member are not fixed but contact with each other for keeping electric conductivity.

Abstract translation: 在根据本发明的压电振动型力传感器中，通过压电体和限制构件之间的摩擦力限制振动，因此与直接限制振动的情况相比，能够扩大感测力范围 从与振动方向相同的方向。 其中引线被直接焊接以将压电体电连接到外部控制电路的常规结构导致由于附着到压电体的焊料引起的振动的限制，导致感测范围变窄。 使用压电振动型力传感器，可以通过使压电体和限制构件的导电部分不固定但彼此接触以保持导电性的状态来扩大感测力的范围。

公开(公告)号：US20090133509A1

公开(公告)日：2009-05-28

申请号：US12064680

申请日：2006-08-25

Applicant: Michael William Ford

Inventor： Michael William Ford

IPC: G01L1/16

CPC classification number: G01L1/10 ,  G01L1/162 ,  G01P15/097

Abstract: A force sensor (10) is forced from a vibrating beam (11), an excitation piezoelectric device (12) to cause a vibration in the beam at its resonate frequency and a measurement piezoelectric device (12) to measure the frequencies being indication of the force applied to the beam (11). The excitation and measurement piezoelectric devices (12) are attached to the beam adjacent to each other at one end of the beam (11).

Abstract translation: 迫使力传感器（10）从振动梁（11），激励压电装置（12）以其谐振频率引起振动，测量压电装置（12）测量频率是指示 施加到梁（11）上的力。 励磁和测量压电装置（12）在梁（11）的一端附接到彼此相邻的梁。

公开(公告)号：US20070144269A1

公开(公告)日：2007-06-28

申请号：US11317384

申请日：2005-12-22

Applicant: Mitchell Novack

Inventor： Mitchell Novack

IPC: G01L1/22

CPC classification number: G01L1/106 ,  G01L1/162 ,  G01L1/183

Abstract: An apparatus and method for monolithic force transducers in which a sensed force is applied across only two ends of a pair of force sensing elements so that the pair of force sensing elements are loaded in series with one in compression and the other in tension, whereby the force sensed by each of the two force sensing elements are identically equal in magnitude but opposite in sense.

Abstract translation: 一种用于单片力传感器的装置和方法，其中感测的力仅施加在一对力感测元件的两端上，使得一对力感测元件与压缩装置中的一对力被加载，另一个在张力下被加载，由此 两个力感测元件中的每一个感测到的力在大小上是相同的，但在意义上是相反的。

公开(公告)号：US20060207341A1

公开(公告)日：2006-09-21

申请号：US11373212

申请日：2006-03-13

Applicant: Mitsuhiro Ando ,  Shunsuke Kogure ,  Katsuyoshi Shirai

Inventor： Mitsuhiro Ando ,  Shunsuke Kogure ,  Katsuyoshi Shirai

IPC: G01B7/16

CPC classification number: G01L1/162 ,  G01G3/13 ,  G01G3/165 ,  G01G19/4142

Abstract: A load detecting device includes a sensor element including a function for generating and detecting a vibration within a single element, the sensor element converting a load or an acceleration into a detection signal, a driving portion for outputting a driving signal for vibrating the sensor element, a vibration detecting portion for extracting the detection signal from the sensor element and for detecting a vibration characteristic value of the sensor element, a wiring for electrically connecting the sensor element, the driving portion and the vibration detecting portion to one another, and for transmitting a superimposed signal constituted by superposition of the driving signal from the driving portion and the detection signal from the sensor element, and a calculating portion for calculating one of or both of a load and an acceleration applied to the sensor element based on the vibration characteristic value from the vibration detecting portion.

Abstract translation: 负载检测装置包括：传感器元件，包括用于产生和检测单个元件内的振动的功能;传感器元件将负载或加速度转换为检测信号;驱动部分，用于输出用于使传感器元件振动的驱动信号; 用于从传感器元件提取检测信号并检测传感器元件的振动特性值的振动检测部分，用于将传感器元件，驱动部分和振动检测部分彼此电连接并将传感器元件 叠加信号由来自驱动部分的驱动信号和来自传感器元件的检测信号叠加构成;以及计算部分，用于根据来自传感器元件的振动特性值计算施加到传感器元件的载荷和加速度之一或两者 振动检测部。

公开(公告)号：US20060170311A1

公开(公告)日：2006-08-03

申请号：US10544755

申请日：2004-02-05

Applicant: Edward Jones ,  Neil White ,  John Tudor ,  Stephen Beeby

Inventor： Edward Jones ,  Neil White ,  John Tudor ,  Stephen Beeby

IPC: H01L41/08

CPC classification number: G01L1/162 ,  G01L9/0022

Abstract: A triple beam resonator (10) is provided with three beams or tines (12, 14, 16) aligned in parallel alongside each other and joined at a decoupling zone (18) at each end, which is in turn connected to the surrounding material. The central beam (14) is twice the width of the two outer beams (12, 16). The resonating element has a length of 15.5 mm, a thickness of 0.25 mm and beam widths of 2 mm and 1 mm. The distance between the beams is 0.5 mm. Finite element analysis predicts the modal behavior with stress distribution and eigenfrequencies of the resonator (10). Thick-film PZT elements (20, 22) were printed on separate regions at each end of the central beam (14), where maximum stresses exist as the resonator (10) operates in its favored mode of vibration. The PZT element (20) at one end drives the vibrations, while the PZT element (22) at the other end detects them. Positioning the PZT driving and sensing elements (20,22) on the regions of maximum stresses maximizes the degree of mechanical coupling between the active piezoelectric layer and the resonator for generation of both driving forces and sensing signals. Very high quality factors of 3100 and higher have been experienced. Furthermore, the resonator can be manufactures by batch production techniques while maintaining high reliability and reproducibility.

Abstract translation: 三光束谐振器（10）设置有三个沿着彼此并联对准并且在每个端部处的去耦区域（18）处并入的三个光束或尖齿（12,14,16），所述去耦区域又连接到周围的材料。 中心梁（14）是两个外梁（12,16）的宽度的两倍。 谐振元件的长度为15.5mm，厚度为0.25mm，波束宽度为2mm和1mm。 梁之间的距离为0.5 mm。 有限元分析预测了谐振器（10）的应力分布和本征频率的模态行为。 厚膜PZT元件（20,22）印刷在中心光束（14）的每个端部的分开的区域上，当谐振器（10）以其有利的振动模式工作时，存在最大应力。 一端的PZT元件（20）驱动振动，另一端的PZT元件（22）检测它们。 将PZT驱动和感测元件（20,22）定位在最大应力区域上使得有源压电层和谐振器之间的机械耦合程度最大化，以产生驱动力和感测信号。 3100及以上的非常高品质因素得到了体验。 此外，谐振器可以通过批量生产技术制造，同时保持高可靠性和再现性。

公开(公告)号：US20060136152A1

公开(公告)日：2006-06-22

申请号：US11312516

申请日：2005-12-21

Applicant: Sennosuke Takahashi

Inventor： Sennosuke Takahashi

IPC: G01L1/00

CPC classification number: G01L1/162

Abstract: Time of flight of sound t0, tn propagating through fixed one face to another of the object under zero load (σ0) and changed applied load (σn) respectively are measured, then stress dependent coefficient α peculiar to material of the object can be obtained from above data and the equation determined beforehand α=f(Δtn, σn) using stress dependent coefficient calculation circuit 12. Time of flight of sound t propagating through one face to another of the object 1 at the determined place under applied unknown load is measured next. Time of flight tn, t0 are measured by time of flight measurement system 11. This invention consists of the stress measurement method and the apparatus to calculate real stress caused in the practically equipped object using equation σ=f(Δt, α) determined beforehand based on time of flight t and stress dependent coefficient α mentioned above.

Abstract translation: 在零负载（西格玛）下，通过固定的一个面传播到物体的另一个的声音t 0 0，t N n N的飞行时间，并改变 分别测量施加的载荷（σσn），则可以从上述数据获得对象材料特有的应力依赖系数α，并且事先确定的方程α= f（Deltat n n / 接下来测量在施加的未知负载下在确定的位置通过一个面传播到物体1的另一个的声音t的飞行时间。 飞行时间t ，t <0>由飞行时间测量系统11测量。本发明由应力测量方法和计算在 使用公式<？in-line-formula description =“In-line Formulas”end =“lead”？> sigma = f（Deltat，alpha）<？in-line-formula description =“In-line Formulas” 根据飞行时间t和上述的应力依赖系数α，事先确定end =“tail”？>。

公开(公告)号：US06819254B2

公开(公告)日：2004-11-16

申请号：US09825392

申请日：2001-04-03

Applicant: Carl William Riley

Inventor： Carl William Riley

IPC: G08B2100

CPC classification number: G01L1/162

Abstract: A system including piezoelectric material wherein a force exerted on the piezoelectric material is determined by subjecting the piezoelectric material to an input signal of sweeping frequency and evaluating the response of the piezoelectric material to the applied signal.

Abstract translation: 一种包括压电材料的系统，其中施加在压电材料上的力通过使压电材料经受扫频的输入信号并评估压电材料对所施加的信号的响应来确定。