公开(公告)号：US20140062258A1

公开(公告)日：2014-03-06

申请号：US14018438

申请日：2013-09-05

Applicant: NIHON DEMPA KOGYO CO., LTD.

Inventor： MITSUAKI KOYAMA ,  TAKERU MUTOH

IPC: G01L1/16

CPC classification number: G01L1/162 ,  G01L9/0022

Abstract: External force detection equipment according to the present disclosure includes a container, a supporting portion, one excitation electrode, another excitation electrode, an oscillation circuit, a movable electrode, a fixed electrode, a frequency information detecting unit, and a conductor. An oscillation loop is formed from the oscillation circuit to pass through the one excitation electrode, the other excitation electrode, the movable electrode, and the fixed electrode, and return to the oscillation circuit. The frequency information detected by the frequency information detecting unit is used for estimating an external force acting on the piezoelectric plate.

Abstract translation: 根据本公开的外力检测装置包括容器，支撑部，一个激励电极，另一个激励电极，振荡电路，可动电极，固定电极，频率信息检测单元和导体。 由振荡电路形成振荡回路，通过一个激励电极，另一个激励电极，可动电极和固定电极，返回振荡电路。 由频率信息检测单元检测的频率信息用于估计作用在压电板上的外力。

公开(公告)号：US20130255402A1

公开(公告)日：2013-10-03

申请号：US13853077

申请日：2013-03-29

Applicant: NIHON DEMPA KOGYO CO., LTD.

Inventor： MITSUAKI KOYAMA ,  TAKERU MUTOH

IPC: G01L1/16

CPC classification number: G01L1/162 ,  G01P5/02 ,  G01P15/097 ,  G01P15/18 ,  G01P2015/0871 ,  G01P2015/0874

Abstract: An external force detection sensor includes a piezoelectric piece, excitation electrodes, an oscillation circuit, a movable electrode, and a fixed electrode. The fixed electrode forms variable capacitance with variation in capacitance between the fixed electrode and the movable electrode that is caused by deflection of the piezoelectric piece. The piezoelectric piece, the excitation electrode, the movable electrode, and the fixed electrode constitute combinations of a first combination and a second combination. The first combination constitutes a first sensor unit by disposing a first piezoelectric piece on a first crystal plane of the crystalline body. The second combination constitutes a second sensor unit by disposing a second piezoelectric piece on a second crystal plane. The second crystal plane does not opposite to the first crystal plane of the crystalline body. A relative position of the second crystal plane with respect to the first crystal plane is obtained.

Abstract translation: 外力检测传感器包括压电片，激励电极，振荡电路，可动电极和固定电极。 固定电极形成可变电容，其由固定电极和可动电极之间的电容变化引起，该电容由压电片的偏转引起。 压电片，激励电极，可动电极和固定电极构成第一组合和第二组合的组合。 第一组合通过在晶体的第一晶面上设置第一压电片构成第一传感器单元。 第二组合通过在第二晶体平面上设置第二压电片构成第二传感器单元。 第二个晶面与晶体的第一个晶面不相反。 获得第二晶面相对于第一晶面的相对位置。

公开(公告)号：US20130068032A1

公开(公告)日：2013-03-21

申请号：US13580276

申请日：2011-03-14

Applicant: Jean-Pierre Nikolovski

Inventor： Jean-Pierre Nikolovski

IPC: G01L1/16

CPC classification number: G01L1/162 ,  H01L41/0825 ,  H01L41/1132 ,  H02N2/18 ,  H02N2/188 ,  Y02B10/30

Abstract: A detector including: a control device configured to provide an electrical control signal in response to a mechanical stress; an emission transducer configured to convert the electrical control signal into a detection signal; a supply piezoelectric element connected electrically to the control device and configured to provide, when mechanically excited, an electrical supply energy to the control device; and a device for mechanically exciting the supply piezoelectric element using the mechanical stress.

Abstract translation: 一种检测器，包括：控制装置，被配置为响应于机械应力提供电控制信号; 发射换能器，被配置为将所述电控信号转换成检测信号; 电源压电元件，其电连接到所述控制装置，并且被配置为在机械激励时向所述控制装置提供电能; 以及使用机械应力机械激励供给压电元件的装置。

公开(公告)号：US20120257473A1

公开(公告)日：2012-10-11

申请号：US13503044

申请日：2010-10-20

Applicant: Martin Rzehorska ,  Jerome Gruaz ,  Klaus-Christoph Harms ,  Rüdiger Teichmann

Inventor： Martin Rzehorska ,  Jerome Gruaz ,  Klaus-Christoph Harms ,  Rüdiger Teichmann

IPC: G01R31/28

CPC classification number: G01L9/0022 ,  G01L1/162 ,  G01L9/08 ,  G01L27/007 ,  G01R31/2829

Abstract: For operating an electromechanical transducer system with at least one piezoelectric transducer element, if necessary at least one identification element and an electronic control unit, on the one hand, the wanted signals of a certain utility operating range defined by the frequency band and time window thereof, assigned to at least one piezoelectric transducer element, as well as, on the other hand, inquiry signals and response signals for the functional testing of the transducer system are transmitted via a line system with only one electrical signal line.In order to thereby render possible a simple and reliable diagnosis method for the input circuit of cable break, with a corresponding increase in operational reliability, reduction of error search times and simplification of operation, at least one inquiry signal located outside the utility operating range of the transducer element is transmitted to the transducer system and from the resulting response signal at least one characteristic value is formed and at least one previously determined criterion is queried, wherein in the event of non-fulfillment of the criterion, an error message is generated.

Abstract translation: 为了操作具有至少一个压电换能器元件的机电换能器系统，如果需要，至少一个识别元件和电子控制单元，一方面由其频带和时间窗定义的某个公用事业操作范围的有用信号 ，分配给至少一个压电换能器元件，另一方面，用于换能器系统的功能测试的询问信号和响应信号通过仅具有一个电信号线的线路系统传输。 为了使电缆断裂的输入电路成为可能的简单可靠的诊断方法，随着操作可靠性的相应增加，错误搜索时间的减少和操作的简化，至少一个位于公用事业操作范围之外的询问信号 换能器元件被传送到换能器系统，并从所得到的响应信号中形成至少一个特征值，并且查询至少一个先前确定的标准，其中在不满足标准的情况下，产生错误消息。

公开(公告)号：US07958788B2

公开(公告)日：2011-06-14

申请号：US12064680

申请日：2006-08-25

Applicant: Michael William Ford

Inventor： Michael William Ford

IPC: G01L1/00

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：US20060081071A1

公开(公告)日：2006-04-20

申请号：US11071856

申请日：2005-03-03

Applicant: Seth Kessler ,  Kristin Jugenheimer ,  Aaron Size ,  Christopher Dunn

Inventor： Seth Kessler ,  Kristin Jugenheimer ,  Aaron Size ,  Christopher Dunn

IPC: G01L5/04

CPC classification number: G01L1/162 ,  G01M5/0033 ,  G01M5/0066 ,  H01L41/1132

Abstract: A device for use in detecting structural damage comprises at least one piezoelectric wafer including a sensor, and an actuator in-plane with the sensor. At least one of the sensor and the actuator at least partially surrounds the other of the sensor and the actuator such that the piezoelectric wafer provides radial detection of structural occurrences in a material.

Abstract translation: 用于检测结构损坏的装置包括至少一个包括传感器的压电晶片和与传感器平行的致动器。 传感器和致动器中的至少一个至少部分地围绕传感器和致动器中的另一个，使得压电晶片提供材料中结构出现的径向检测。

公开(公告)号：US06763726B2

公开(公告)日：2004-07-20

申请号：US10329507

申请日：2002-12-27

Applicant: Muneharu Yamashita

Inventor： Muneharu Yamashita

IPC: G01L700

CPC classification number: G01P15/097 ,  G01L1/162 ,  G01P15/09

Abstract: A mechanical-force sensor includes two piezoelectric vibrators which are arranged such that stresses in mutually opposite directions are applied thereto by a mechanical force such as an acceleration. A current-voltage converter and signal-summing circuit converts current signals that flow through the two piezoelectric vibrators into voltage signals. A voltage-amplifier and amplitude limiter circuit amplifies a sum signal of the two voltage signals, and provides a positive feedback of a voltage signal that is in phase with the current signals, thereby causing an oscillating operation. A phase difference-voltage converter circuit generates a voltage signal that is proportional to the phase difference between the voltage signals yielded by the conversion. An amplifier and filter circuit DC-amplifies the voltage signal and removes unwanted frequency components therefrom.

Abstract translation: 机械力传感器包括两个压电振动器，它们被布置成使得通过诸如加速度的机械力将相互相反方向的应力施加到其上。 电流 - 电压转换器和信号求和电路将流经两个压电振动器的电流信号转换为电压信号。 电压放大器和幅度限制器电路放大两个电压信号的和信号，并提供与电流信号同相的电压信号的正反馈，从而引起振荡操作。 相位差电压转换器电路产生与转换产生的电压信号之间的相位差成比例的电压信号。 放大器和滤波器电路对电压信号进行直流放大，并从其中去除不需要的频率分量。

公开(公告)号：US06450032B1

公开(公告)日：2002-09-17

申请号：US09524752

申请日：2000-03-14

Applicant: William C. Albert

Inventor： William C. Albert

IPC: G01P1510

CPC classification number: G01P15/097 ,  G01L1/162

Abstract: A two-piece vibrating beam force sensor is created by utilizing one thickness of quartz for the outer mounting structure. This outer mounting structure in the case of a pressure sensor includes the mounting structure, the flexure beams and the lever arm and, in the case of an acceleration sensor, includes the mounting structure, the parallel flexure beams and the proof mass. An inner quartz structure made of a double-ended tuning fork vibrating beam assembly which provides an electrical output indicative of tension or compression applied to the beam assembly. The vibrating beam assembly is mounted on the outer quartz structure with epoxy resin or low melting temperature glass frit and suitable electrodes for stimulating the vibrating beams into vibration are provided. The resultant structure is an inexpensive, easily produced, yet highly accurate vibrating beam force sensor.

Abstract translation: 通过利用一个厚度的石英作为外部安装结构，创建了两片振动梁力传感器。 在压力传感器的情况下，该外部安装结构包括安装结构，弯曲梁和杠杆臂，并且在加速度传感器的情况下，包括安装结构，平行挠曲梁和检验质量块。 由双端音叉振动梁组件制成的内部石英结构，其提供指示施加到梁组件的张力或压缩的电输出。 振动梁组件安装在具有环氧树脂或低熔点玻璃料的外部石英结构上，并提供用于刺激振动梁进入振动的合适电极。 所得到的结构是廉价的，容易制造的，但是高精度的振动束力传感器。

公开(公告)号：US5596145A

公开(公告)日：1997-01-21

申请号：US315045

申请日：1994-09-29

Applicant: William C. Albert ,  Herbert T. Califano

Inventor： William C. Albert ,  Herbert T. Califano

IPC: G01L1/16 ,  G01L9/00 ,  G01P15/097 ,  G01P15/10 ,  G01P15/09

CPC classification number: G01P15/097 ,  G01L1/162 ,  G01L9/0022 ,  Y10S73/01

Abstract: A monolithic resonator for a vibrating beam device, either an accelerometer or a pressure transducer, includes an outer structure and an inner structure. The outer structure includes a mounting structure, a proof mass or pressure transfer structure and a plurality of flexure beams parallel for the accelerometer and perpendicular for the pressure transducer, extending between the mounting and either proof mass or pressure transfer structure. The inner structure is connected to the outer structure and contains isolator masses, isolator beams and a vibrating beam. The outer structure has a thickness greater than the intermediate thickness of the isolator masses which is in turn thicker than the inner structure thickness of the isolator beams and vibrating beam. The intermediate thickness is independently selected to achieve the ideal mass requirements of the vibration isolation mechanism.

Abstract translation: 用于振动束装置（加速度计或压力传感器）的单片谐振器包括外部结构和内部结构。 外部结构包括安装结构，检验质量块或压力传递结构以及平行于加速度计并且垂直于压力传感器的多个弯曲梁，其在安装和检测质量块或压力传递结构之间延伸。 内部结构连接到外部结构，并包含隔离块，隔离梁和振动梁。 外部结构的厚度大于隔离器质量的中间厚度，隔离器质量的厚度又大于隔离梁和振动梁的内部结构厚度。 独立选择中间厚度以达到隔振机构的理想质量要求。

公开(公告)号：US5220836A

公开(公告)日：1993-06-22

申请号：US613806

申请日：1990-12-26

Applicant: Klaus-Christoph Harms ,  Peter W. Krempl ,  Joseph Moik

Inventor： Klaus-Christoph Harms ,  Peter W. Krempl ,  Joseph Moik

IPC: G01D5/243 ,  G01L1/10 ,  G01L1/16 ,  G01L9/00 ,  G01L9/08

CPC classification number: G01L1/162 ,  G01L1/16 ,  G01L9/0022 ,  G01L9/08 ,  Y10S73/04

Abstract: A sensor containing at least one piezoelectric transducer element is operated via a common, single signal line in both possible operating modes--first, at low frequencies as a measuring element for a mechanical quantity upon utilization of the direct piezoeffect and, second, at higher frequencies as a piezoelectric resonator upon utilization of the inverse piezoeffect for electrical excitation of mechanical oscillations and of the direct piezoeffect for generating the piezoelectric reaction. A high-frequency signal (u.sup.HF, u.sub.F) that describes the resonant characteristic and a lower-frequency signal (u.sub.NF, u.sub.Q) that describes the mechanical influence are generated from the measured signal on the signal line. The faultless function of the sensor together with the appertaining measuring amplifier, for example, can thus be monitored immediately during a measurement with the sensor or a simultaneous measurement of two different quantities can be undertaken.

Abstract translation: PCT No.PCT / AT90 / 00033 Sec。 371日期1990年12月26日第 102（e）日期1990年12月26日PCT 1990年4月18日提交PCT公布。 WO90 / 13010PC PCT出版物 日期：1990年11月1日。包含至少一个压电换能器元件的传感器在两种可能的操作模式中通过公共的单个信号线进行操作 - 首先在低频下作为用于直接压电效应时机械量的测量元件 以及第二，在利用用于机械振荡的电激发的反向压电效应和用于产生压电反应的直接压电效应的压电谐振器的较高频率下。 从信号线上的测量信号产生描述谐振特性的高频信号（uHF，uF）和描述机械影响的低频信号（uNF，uQ）。 因此，可以在使用传感器进行测量期间立即监测传感器与相关测量放大器的无故障功能，或者可以进行两个不同数量的同时测量。