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    Force detector and acceleration detector
    81.
    发明授权
    Force detector and acceleration detector 失效
    力检测器和加速度检测器

    公开(公告)号：US6158291A

    公开(公告)日：2000-12-12

    申请号：US375334

    申请日：1999-08-16

    Applicant: Kazuhiro Okada

    Inventor： Kazuhiro Okada

    IPC: B81B3/00 ,  G01L1/14 ,  G01L5/16 ,  G01P15/08 ,  G01P15/09 ,  G01P15/105 ,  G01P15/125 ,  G01P15/18 ,  G01D7/00

    CPC classification number: G01P15/18 ,  G01L1/144 ,  G01L5/165 ,  G01L5/167 ,  G01P15/0802 ,  G01P15/0922 ,  G01P15/105 ,  G01P15/125 ,  G01P2015/084 ,  Y10S73/04 ,  Y10T29/43 ,  Y10T29/49005 ,  Y10T29/49007

    Abstract: An electrode layer is formed on the upper surface of a first substrate, and a processing for partially removing the substrate is carried out in order to allow the substrate to have flexibility. To the lower surface of the first substrate, a second substrate is connected. Then, by cutting the second substrate, a working body and a pedestal are formed. On the other hand, a groove is formed on a third substrate. An electrode layer is formed on the bottom surface of the groove. The third substrate is connected to the first substrate so that both the electrodes face to each other with a predetermined spacing therebetween. Finally, the first, second and third substrates are cut off every respective unit regions to form independent sensors, respectively. When an acceleration is exerted on the working body, the first substrate bends. As a result, the distance between both the electrodes changes. Thus, an acceleration exerted is detected by changes in an electrostatic capacitance between both the electrodes.

    Abstract translation: 在第一基板的上表面上形成电极层，进行部分除去基板的处理，以使基板具有挠性。 连接到第一基板的下表面，连接第二基板。 然后，通过切割第二基板，形成工作体和基座。 另一方面，在第三基板上形成槽。 在槽的底面上形成电极层。 第三基板连接到第一基板，使得两个电极以彼此之间的预定间隔彼此面对。 最后，第一，第二和第三基板分别切断各个单元区域以分别形成独立的传感器。 当对工作体施加加速度时，第一基板弯曲。 结果，两个电极之间的距离变化。 因此，通过两个电极之间的静电电容的变化来检测施加的加速度。

    Force detector
    82.
    发明授权
    Force detector 失效
    力检测器

    公开(公告)号：US06053057A

    公开(公告)日：2000-04-25

    申请号：US109560

    申请日：1998-07-02

    Applicant: Kazuhiro Okada

    Inventor： Kazuhiro Okada

    IPC: B81B3/00 ,  G01L1/14 ,  G01L5/16 ,  G01P15/08 ,  G01P15/09 ,  G01P15/105 ,  G01P15/125 ,  G01P15/18 ,  G01D7/00

    CPC classification number: G01P15/18 ,  G01L1/144 ,  G01L5/165 ,  G01L5/167 ,  G01P15/0802 ,  G01P15/0922 ,  G01P15/105 ,  G01P15/125 ,  G01P2015/084 ,  Y10S73/04 ,  Y10T29/43 ,  Y10T29/49005 ,  Y10T29/49007

    Abstract: An electrode layer is formed on the upper surface of a first substrate, and a processing for partially removing the substrate is carried out in order to allow the substrate to have flexibility. To the lower surface of the first substrate, a second substrate is connected. Then, by cutting the second substrate, a working body and a pedestal are formed. On the other hand, a groove is formed on a third substrate. An electrode layer is formed on the bottom surface of the groove. The third substrate is connected to the first substrate so that both the electrodes face to each other with a predetermined spacing therebetween. Finally, the first, second and third substrates are cut off every respective unit regions to form independent sensors, respectively. When an acceleration is exerted on the, working body, the first substrate bends. As a result, the distance between both the electrodes changes. Thus, an acceleration exerted is detected by changes in an electrostatic capacitance between both the electrodes.

    Abstract translation: 在第一基板的上表面上形成电极层，进行部分除去基板的处理，以使基板具有挠性。 连接到第一基板的下表面，连接第二基板。 然后，通过切割第二基板，形成工作体和基座。 另一方面，在第三基板上形成槽。 在槽的底面上形成电极层。 第三基板连接到第一基板，使得两个电极以彼此之间的预定间隔彼此面对。 最后，第一，第二和第三基板分别切断各个单元区域以分别形成独立的传感器。 当对工作体施加加速度时，第一基板弯曲。 结果，两个电极之间的距离变化。 因此，通过两个电极之间的静电电容的变化来检测施加的加速度。

    Method and apparatus of cooking food in a lightwave oven
    83.
    发明授权
    Method and apparatus of cooking food in a lightwave oven 失效
    在光波炉中烹饪食物的方法和设备

    公开(公告)号：US6011242A

    公开(公告)日：2000-01-04

    申请号：US924160

    申请日：1997-09-05

    Applicant: Eugene R. Westerberg

    Inventor： Eugene R. Westerberg

    IPC: F24C7/04 ,  A47J27/62 ,  A47J37/06 ,  F24C7/06 ,  F24C7/08 ,  G01L1/14 ,  G05D1/08 ,  H05B3/00 ,  H05B3/10 ,  H05B7/22 ,  H05B1/02 ,  A21B1/40

    CPC classification number: H05B3/0076 ,  A47J27/62 ,  F24C7/06 ,  F24C7/087 ,  G01L1/144 ,  G05D1/0816

    Abstract: A lightwave oven cooking method and apparatus uses pulsed power applied to a plurality of high-power lamps which provides radiant energy in the electromagnetic spectrum and having wavelengths including the visible and near-visible ranges. Irradiation is applied to the food by applying power to the lamps for a specified period of time without vaporizing all of the surface water on the food, and then applying reduced irradiation to the food to complete the cooking cycle without producing an overly browned surface which inhibits deep penetration of radiation in the near-visible and visible ranges. The reduced power can be at a reduced duty cycle which can be done in a sequence of one or more reducing steps in the duty cycle or a continuous reduction of the duty cycle of the power applied to the lamps. A change in color, in water vapor concentration emitted from the surface, in the food temperatures and/or in the generation of steam to a predetermined degree can be sensed to reduce power.

    Abstract translation: 光波炉烹饪方法和装置使用施加到多个高功率灯的脉冲功率，其在电磁光谱中提供辐射能并且具有包括可见光和近似可见光范围的波长。 通过向灯具施加电力一定时间来照射食物，而不会蒸发食物上的所有表面水，然后对食物施加减少的辐照以完成烹饪周期，而不产生过度褐变的表面，其抑制 辐射在近似可见和可见范围内的深度穿透。 减小的功率可以是减少的占空比，其可以在占空比中的一个或多个减少步骤的序列中进行，或者连续减小施加到灯的功率的占空比。 可以感测到从表面发射的水蒸汽浓度，食物温度和/或蒸汽产生到预定程度的颜色变化，以降低功率。

    Switched capacitor transducer
    85.
    发明授权
    Switched capacitor transducer 失效
    开关电容换能器

    公开(公告)号：US5343766A

    公开(公告)日：1994-09-06

    申请号：US841363

    申请日：1992-02-25

    Applicant: Chen Y. Lee

    Inventor： Chen Y. Lee

    IPC: G01D5/241 ,  G01L1/14 ,  G01L9/12 ,  G01P15/125 ,  G01P15/13 ,  G01L1/00

    CPC classification number: G01L9/12 ,  G01D5/2417 ,  G01L1/144 ,  G01P15/125 ,  G01P15/131

    Abstract: A micromachined accelerometer includes two capacitors comprising a pair of fixed capacitor electrodes and an intermediate movable proof mass serving as a common electrode which is displaced under acceleration to differentially vary the capacitances. A circuit holds the common electrode at a bias voltage and a switching circuit rapidly alternating between two phases separately connects the fixed electrodes to a main reference voltage and to ground during a first phase and to a common intermediate voltage during a second phase. A charge amplifier senses capacitance changes due to acceleration to produce an output voltage and an attenuating amplifier responsive to the output voltage produces the common intermediate voltage. A compensation servo circuit responsive to the output voltage generates the bias voltage which controls an electrostatic balancing force which is applied to the proof mass during the first phase to maintain the proof mass near a rest position. Alternatively, the bias voltage is a constant value for open loop operation.

    Abstract translation: 微机械加速度计包括两个电容器，其包括一对固定电容器电极和用作公共电极的中间可移动质量块，其在加速度下移位以差异地改变电容。 电路将公共电极保持在偏置电压，并且在两相之间快速交替的开关电路在第一阶段期间将固定电极分别连接到主参考电压并接地，并在第二阶段期间连接到公共中间电压。 电荷放大器感测由加速度引起的电容变化以产生输出电压，并且响应于输出电压的衰减放大器产生公共中间电压。 响应于输出电压的补偿伺服电路产生偏置电压，该偏置电压控制在第一阶段期间施加到检验质量块的静电平衡力，以将证明质量块保持在靠近静止位置。 或者，偏置电压是开环操作的常数值。

    CMOS Bridge for capacitive pressure transducers
    86.
    发明授权
    CMOS Bridge for capacitive pressure transducers 失效
    用于电容式压力传感器的CMOS桥

    公开(公告)号：US4459856A

    公开(公告)日：1984-07-17

    申请号：US440575

    申请日：1982-11-10

    Applicant: Wen-Hsiung Ko ,  Cliff D. J. Fung ,  Wei-Jiun Shen

    Inventor： Wen-Hsiung Ko ,  Cliff D. J. Fung ,  Wei-Jiun Shen

    IPC: G01D5/241 ,  G01L1/14 ,  G01L9/00 ,  G01L9/12 ,  G01L19/04

    CPC classification number: G01L9/0005 ,  G01D5/2417 ,  G01L1/144 ,  G01L9/12

    Abstract: A fixed reference capacitance (10) and a variable, pressure sensitive capacitance (12) are defined by a common conductive layer (14), and a common dielectric layer (16). A peripheral conductive layer 20 completes the reference capacitor and a central conductive layer (22) completes the variable capacitor. A peripheral supporting layer or structure (18) prevents the thickness or the dielectric constant of the dielectric layer peripheral portion but not the central portion from varying in response to pressure changes. In this manner, the reference and variable capacitors may be placed closely adjacent without pressure isolating the reference capacitor. An oscillator (30) provides an AC, such as square wave, driving signal to first and second temporary storage capacitors (52, 54). A bridge (70) of CMOS transistors selectively connects the first and second storage capacitors with the reference and variable capacitors. A gating control circuit (90) selectively gates the CMOS transistors of the bridge conductive and nonconductive such that during a positive square wave half cycle, the first storage capacitor is connected with the reference capacitor and the second storage capacitor is connected with the variable capacitor and during a negative half cycle the first storage capacitor is connected with the variable capacitor and the second storage capacitor is connected with the reference capacitor.

    Abstract translation: 固定参考电容（10）和可变的压敏电容（12）由公共导电层（14）和公共电介质层（16）限定。 外围导电层20完成参考电容器，并且中心导电层（22）完成可变电容器。 外围支撑层或结构（18）防止介电层周边部分的厚度或介电常数不受中心部分的影响而随压力变化而变化。 以这种方式，可以将参考电容器和可变电容器紧邻地放置，而不会使参考电容器隔离。 振荡器（30）向第一和第二临时存储电容器（52,54）提供诸如方波的AC驱动信号。 CMOS晶体管的桥（70）选择性地将第一和第二存储电容器与参考电容器和可变电容器连接。 选通控制电路（90）选择性地将桥接的CMOS晶体管导通和非导通，使得在正方波半周期期间，第一存储电容器与参考电容器连接，并且第二存储电容器与可变电容器连接， 在负半周期期间，第一存储电容器与可变电容器连接，第二存储电容器与参考电容器连接。

    Shaft movement differential pressure measuring apparatus embodying capacitive transducers
    87.
    发明授权
    Shaft movement differential pressure measuring apparatus embodying capacitive transducers 失效
    SHAFT运动差压测量装置电容式传感器

    公开(公告)号：US3742347A

    公开(公告)日：1973-06-26

    申请号：US3742347D

    申请日：1971-08-25

    Applicant: ATOMIC ENERGY AUTHORITY UK

    Inventor： WALTON H

    IPC: G01L1/14 ,  G01L9/00 ,  G01L9/12 ,  G01L13/02 ,  G01R27/26

    CPC classification number: G01L13/025 ,  G01L1/144 ,  G01L9/0072 ,  G01L9/125

    Abstract: Measuring apparatus including a capacitive transducer which comprises members between which a first capacitance increases and a second capacitance simultaneously decreases in accordance with the magnitude of the physical quantity being measured. The first and second capacitances are connected as two arms of a four-arm bridge having as each of the two other arms a charge amplifier. Means are provided for applying an AC carrier waveform to the junction of the first and second capacitances and for demodulating the differential output of the two charge amplifiers to give an output representative of the magnitude of the physical quantity.

    Capacitors
    88.
    发明授权
    Capacitors 失效
    电容器

    公开(公告)号：US3678378A

    公开(公告)日：1972-07-18

    申请号：US3678378D

    申请日：1969-03-28

    Applicant: NAT RES DEV

    Inventor： TROTT JOHN JAMES ,  GRAINGER JAMES WILLIAM

    IPC: G01G7/06 ,  G01L1/14 ,  G01L9/00 ,  G01R27/26 ,  H01G7/00

    CPC classification number: G01L9/0005 ,  G01G7/06 ,  G01L1/144

    Abstract: A capacitor is described, the capacity of which varies with pressure applied thereto. The capacitor may have sheet metal electrodes separated by natural rubber layers, one at least of the electrodes being perforated so that when pressure is applied to the capacitor the rubber can deform and the electrodes can move closer together. The capacitor may be connected in a bridge circuit which then gives an output dependent on the pressure applied. The capacitor is useful in measuring wheel and axle loads.

    Abstract translation: 描述了电容器，其电容随施加压力的压力而变化。 电容器可以具有由天然橡胶层分开的金属片电极，至少一个电极被穿孔，使得当压力施加到电容器时，橡胶可以变形并且电极可以更靠近地移动。 电容器可以连接在桥式电路中，桥式电路然后根据所施加的压力给出输出。 电容器可用于测量车轮和车轴负载。

    Force sensor and display device
    90.
    发明授权
    Force sensor and display device 有权

    公开(公告)号：US12111704B2

    公开(公告)日：2024-10-08

    申请号：US17351630

    申请日：2021-06-18

    Applicant: Japan Display Inc.

    Inventor： Takayuki Nakanishi

    IPC: G06F3/044 ,  G06F1/18 ,  G01L1/14 ,  G06F3/041

    CPC classification number: G06F1/182 ,  G06F3/044 ,  G01L1/144 ,  G06F3/0414 ,  G06F3/0445

    Abstract: According to an aspect, a force sensor includes: a first electrode; a second electrode; a first conductor facing the first electrode in a first direction; a second conductor facing the second electrode in the first direction; a first elastic member and a second elastic member arranged between the first electrode and the first conductor; and the first elastic member arranged between the second electrode and the second conductor. The first elastic member and the second elastic member have degrees of compression with respect to force thereon that are different depending on temperature.

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