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1. 发明申请

US20030011389A1 Nano-substance mass measurement method and apparatus 失效
公开(公告)号：US20030011389A1
公开(公告)日：2003-01-16
申请号：US10155039
申请日：2002-05-24
申请人： YOSHIKAZU NAKAYAMA
发明人： Yoshikazu Nakayama , Akio Harada
IPC分类号： G01R029/22
CPC分类号： G01G3/13 , B82Y35/00 , Y10S977/842
摘要： A method for measuring the mass of nano-substances including the steps of gripping a nano-substance with a nanotweezer gripping portion made of a plurality of nanotubes, resonating the nanotweezer gripping portion in this gripping state, measuring a resulting first characteristic frequency, and obtaining the mass of the gripped nano-substance by comparing the first and second characteristic frequencies, where the second characteristic frequency is the characteristic frequency of the nanotweezer gripping portion with no nano-substance gripped thereby. The gripping portion is caused to resonate electrically by applying an AC voltage between the nanotweezer gripping portion and an electrode disposed near the nanotweezer gripping portion. The gripping portion is caused also to resonate mechanically by way of expanding and contracting a piezo-electric element disposed on a main body that supports the nanotweezer gripping portion.

2. 发明申请

US20020130673A1 Electroactive polymer sensors 有权
标题翻译：电动聚合物传感器
公开(公告)号：US20020130673A1
公开(公告)日：2002-09-19
申请号：US10007705
申请日：2001-12-06
申请人： SRI International
发明人： Ronald E. Pelrine , Roy D. Kornbluh , Qibing Pei , Joseph Stephen Eckerle
IPC分类号： G01R029/22
CPC分类号： A63H3/365 , A61B5/1135 , H01L41/1132 , Y10S310/80
摘要： The invention provides sensors that comprise a transducer that converts between mechanical energy and electrical energy. The transducer comprises an electroactive polymer in electrical communication with at least two electrodes. When a relatively small voltage difference is applied between the electrodes, deflection of the polymer results in a measurable change in electrical energy for the transducer. The change in electrical energy may correspond to a change in resistance, capacitance, or a combination thereof. Sensing electronics circuits in electrical communication with electrodes detect the electrical energy change.
摘要翻译：本发明提供了包括在机械能和电能之间转换的换能器的传感器。换能器包括与至少两个电极电连通的电活性聚合物。当在电极之间施加相对小的电压差时，聚合物的偏转导致换能器的电能的可测量的变化。电能的变化可以对应于电阻，电容或其组合的变化。与电极电气通信的感应电子电路检测电能变化。

3. 发明申请

US20020101253A1 Method and device for vibration control 失效
标题翻译：振动控制方法及装置
公开(公告)号：US20020101253A1
公开(公告)日：2002-08-01
申请号：US09803320
申请日：2001-03-09
发明人： Baruch Pletner , Richard Perkins , Leonard Lublin
IPC分类号： G01R029/22
CPC分类号： G03F7/70725 , F16F15/005 , F16F15/02 , F16F15/0275 , F16F2230/08 , G03F7/70825 , G03F7/70833 , G03F7/709 , G05D19/02 , H04R17/08
摘要： A vibration control system comprising an actuator, and a sensor useful for controlling vibrations in systems for fabricating electronics equipment. The actuator may comprise one or more plates or elements of electroactive material bonded to an electroded sheet.
摘要翻译：一种振动控制系统，包括致动器和用于控制用于制造电子设备的系统中的振动的传感器。致动器可以包括结合到电镀片材上的电活性材料的一个或多个板或元件。

4. 发明申请

US20020008527A1 MEASURING CIRCUIT 有权
标题翻译：测量电路
公开(公告)号：US20020008527A1
公开(公告)日：2002-01-24
申请号：US09420280
申请日：1999-10-18
发明人： BERNARD BROILLET
IPC分类号： G01R029/22
CPC分类号： G01L23/225 , G01H11/08 , G01P21/00
摘要： A measuring circuit comprising a symmetric transmission line connecting a transducer to a measurement amplifier and to a fault indicating signal amplifier, the transducer delivering symmetric input signals to said amplifiers, the first amplifier delivering a measuring signal representing the difference of its input signals and the fault indicating signal amplifier delivering a fault indicating signal representing the sum of the input signals. An auxiliary signal injected to the terminals of the transducer the invention enables the measuring circuit to evaluate the quality of the measuring circuit during operation of the tested machine and also when the machine is at rest.
摘要翻译：一种测量电路，包括将换能器连接到测量放大器和故障指示信号放大器的对称传输线，所述换能器将对称输入信号传送到所述放大器，所述第一放大器传送表示其输入信号和故障的差异的测量信号指示信号放大器传递表示输入信号之和的故障指示信号。注射到本发明换能器的端子的辅助信号使得测量电路能够在被测试机器的操作期间以及当机器静止时评估测量电路的质量。

5. 发明申请

US20030112023A1 Mechanical-electrical transducer 审中-公开
标题翻译：机电传感器
公开(公告)号：US20030112023A1
公开(公告)日：2003-06-19
申请号：US10293930
申请日：2002-11-14
发明人： Heiko Jausel , Erich Mattmann , Uwe Neumann-Henneberg
IPC分类号： G01R029/22
CPC分类号： G01L1/2287
摘要： The invention relates to a mechanical-electrical transducer having a bridge circuit formed on an insulation layer through an electrical interconnection of expansion-sensitive thick-film resistors by means of conductor tracks. The insulation layer is arranged directly on a metallic component that is to be mechanically loaded, and being intimately connected to said component by means of a thermal process. In this case, in the event of mechanical stressing of the component, an electrical signal corresponding to the expansion of the thick-film resistors can be tapped off. In order that the mechanical-electrical transducer exhibits a small electrical offset in the output signal in the event of mechanical loading, the metallic component to be loaded comprises a thermally post-hardening metal or a thermally post-hardening metal alloy.
摘要翻译：本发明涉及一种具有桥接电路的机械电传感器，桥接电路通过导体轨迹通过膨胀敏感厚膜电阻器的电互连形成在绝缘层上。绝缘层直接布置在待机械加载的金属部件上，并通过热处理紧密地连接到所述部件上。在这种情况下，在组件的机械应力的情况下，与厚膜电阻器的膨胀相对应的电信号可以被分接。为了在机械负载的情况下机械 - 电传感器在输出信号中表现出小的电偏移，待加载的金属部件包括热后固化金属或热后固化金属合金。

6. 发明申请

US20030062912A1 Polarization method of a multi-layered piezoelectric body 失效
标题翻译：多层压电体极化方法
公开(公告)号：US20030062912A1
公开(公告)日：2003-04-03
申请号：US09996575
申请日：2001-11-30
申请人： Murata Manufacturing Co., Ltd.
发明人： Mikio Nakajima
IPC分类号： G01R029/22 , G01R027/04
CPC分类号： H01L41/273 , H01L41/257 , Y10T29/42
摘要： In a polarization method of the multi-layered piezoelectric body in which a plurality of piezoelectric layers and a plurality of internal electrodes are alternately laminated and adjacent piezoelectric layers are polarized in the thickness direction such that the polarized directions thereof are in opposite directions, a first polarization process in which an electric field in one direction is applied in the thickness direction to the multi-layered piezoelectric body and a polarization is uniformly performed in the thickness direction, and a secondary polarization process in which an electric field in the opposite direction is applied to the piezoelectric layers on both sides of one of the internal electrodes and the direction of polarization of only one of the piezoelectric layers on one side of the internal electrode is reversed are provided. The secondary polarization is performed in the range such that the remaining polarization degree Pr2 that exists after the secondary polarization in the piezoelectric layer 1b in which the direction of polarization is reversed does not exceed the remaining polarization degree of Pr1 that exists after the first polarization.
摘要翻译：在多层压电体的极化方法中，多个压电层和多个内部电极交替层叠，相邻的压电体层在厚度方向上偏振，使得其偏振方向相反，第一在厚度方向上向多层压电体施加一个方向的电场，在厚度方向上均匀地进行极化的极化处理，施加相反方向的电场的二次极化处理提供了内电极一侧的压电层和内电极一侧的一个压电层的极化方向相反的压电层。在使极化方向的压电体层1b中的二次极化后存在的剩余极化度Pr2不超过存在于第一极化后的Pr1剩余极化度的范围内进行二次偏振。

7. 发明申请

US20040155194A1 Method for evaluating piezoelectric fields 失效
标题翻译：压电场评估方法
公开(公告)号：US20040155194A1
公开(公告)日：2004-08-12
申请号：US10768163
申请日：2004-02-02
申请人： Mitsubishi Denki Kabushiki Kaisha
发明人： Hideo Takeuchi , Yoshitsugu Yamamoto , Takahide Ishikawa
IPC分类号： G01R029/22
CPC分类号： G01N21/35
摘要： In a method of evaluating a piezoelectric field, a non-destructive spectrometry of piezoelectric fields is performed in a semiconductor heterojunction using a technique different from PR spectroscopy. In the method, at first, first and second absorption spectra are measured by irradiating infrared light to a sample with first and second angles, respectively. Then, a peak position of an absorption band having incident-angle dependent intensity is specified based on the first and second absorption spectra. Thus, the piezoelectric field strength is obtained based on an equation of energy level. The equation represents a relationship between the piezoelectric field and an electron energy level corresponding to the peak position.
摘要翻译：在评估压电场的方法中，使用不同于PR光谱的技术在半导体异质结中进行压电场的非破坏性光谱测定。在该方法中，首先，通过将红外光分别以第一和第二角度照射到样品来测量第一和第二吸收光谱。然后，基于第一吸收光谱和第二吸收光谱来确定具有入射角依赖强度的吸收带的峰值位置。因此，基于能级方程获得压电场强。该方程式表示压电场与对应于峰值位置的电子能级之间的关系。

8. 发明申请

US20030038644A1 DIAGNOSTICS FOR PIEZOELECTRIC SENSOR 有权
标题翻译：压电传感器诊断
公开(公告)号：US20030038644A1
公开(公告)日：2003-02-27
申请号：US09940329
申请日：2001-08-27
发明人： Lowell A. Kleven
IPC分类号： G01R029/22
CPC分类号： G01F1/3263 , G01F1/329 , G01F25/0076 , G01R19/22
摘要： A diagnostic device for testing a piezoelectric sensor includes an AC source configured to apply an AC signal to the piezoelectric sensor at two or more different frequencies. The response of the piezoelectric sensor can be measured and used for diagnostics.
摘要翻译：用于测试压电传感器的诊断装置包括被配置为以两个或更多个不同频率向压电传感器施加AC信号的AC源。可以测量压电传感器的响应并用于诊断。

9. 发明申请

US20020024346A1 Method of inspecting piezoelectric ceramic device 有权
公开(公告)号：US20020024346A1
公开(公告)日：2002-02-28
申请号：US09746324
申请日：2000-12-22
申请人： Murata Manufacturing Co., Ltd.
发明人： Masato Ikuta , Toshinari Tabata , Masao Nishimura
IPC分类号： G01R029/22
CPC分类号： G01R29/22 , G01N27/02 , G01N33/388
摘要： A piezoelectric ceramic device is heated so that the temperature is increased to a temperature in the vicinity of the maximum temperature at which the device, when the temperature is returned to ordinary temperature, is returned to substantially the same piezoelectric characteristic before heating. In the state that the piezoelectric ceramic device is heated, and the temperature is increased, at least one of the piezoelectric phase characteristic and the impedance characteristic of the piezoelectric ceramic device is measured. The measurement is compared with a standard characteristic, whereby an internal defect of the piezoelectric ceramic device is detected, based on results of the comparison. For the heating and temperature-increasing, and the measuring, a high frequency measurement signal having a power level that is higher than the rated level of the piezoelectric ceramic device is applied, and simultaneously with the piezoelectric ceramic device itself being dielectric-heated by the application of the high frequency signal, at least one of the piezoelectric phase characteristic and the impedance characteristic is measured.

10. 发明申请

US20030076121A1 Peizoelectric microactuator and sensor failure detection in disk drives 审中-公开
标题翻译： Peizoelectric微型致动器和磁盘驱动器中的传感器故障检测
公开(公告)号：US20030076121A1
公开(公告)日：2003-04-24
申请号：US10218953
申请日：2002-08-13
发明人： Wei Guo , Michael R. Hatch
IPC分类号： G01R029/22
CPC分类号： G11B20/1816 , G01R31/2829 , G11B27/36 , G11B2220/20
摘要： A test device and method for testing one of a disk drive microactuator and a disk drive sensor that includes two piezoelectric elements. The test device includes a signal generator, signal analyzer, and a user interface. The test device is operational to provide a reference signal (e.g. an electrical signal) to one of the piezoelectric elements in the microactuator and obtain a test measure from the other one of the piezoelectric elements. The test measure is then utilized to assess a performance parameter for the microactuator. The test measure is generated by the other one of the piezoelectric elements in response to the reference signal provided to the first one of the piezoelectric elements. In one embodiment of the invention, the test measure is a signal generated in response to the reference signal that may be compared to a known response signal of an operational microactuator to determine operational characteristics of a subject microactuator such as circuitry operation and/or damage to the microactuator.
摘要翻译：一种用于测试包括两个压电元件的磁盘驱动器微型致动器和磁盘驱动器传感器之一的测试装置和方法。测试装置包括信号发生器，信号分析器和用户界面。测试装置可操作以向微致动器中的一个压电元件提供参考信号（例如电信号），并从另一个压电元件获得测试测量。然后使用测试措施来评估微致动器的性能参数。响应于提供给第一压电元件的参考信号，测试措施由另一个压电元件产生。在本发明的一个实施例中，测试测量是响应于参考信号产生的信号，其可以与操作微致动器的已知响应信号进行比较，以确定对象微致动器的操作特性，例如电路操作和/或损坏微致动器。

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