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公开(公告)号：US5440939A
公开(公告)日：1995-08-15
申请号：US043387
申请日：1993-04-06
Applicant: Herve Barny , Henri Fima , Michel Torregrosa
Inventor： Herve Barny , Henri Fima , Michel Torregrosa
CPC classification number: G01L11/008 , G01D3/066 , G01L1/086 , G01P15/131
Abstract: An electrostatically servo-controlled pendular micro-sensor includes a pendular element disposed so as to respond to a force representative of a physical quantity to be measured. To avoid the drifts affecting the stability of the micro-sensor, generated by the existence of unstable parasitic voltages that impair the voltages provided by a system servo-controlling the pendular element, the electrostatic forces generated to draw back the pendular element through servo-control voltages have a zero mean value. The control voltages are periodic voltages or series of electric signals of equal durations, each having, preferably, a zero mean value.
Abstract translation: 静电伺服控制的圆柱形微传感器包括摆动元件，其被设置为响应于代表要测量的物理量的力。 为了避免影响微传感器的稳定性的漂移，由于存在不稳定的寄生电压而产生的损害由伺服控制摆式元件的系统所提供的电压，所产生的静电力通过伺服控制来拉回摆式元件 电压具有零平均值。 控制电压是周期性电压或相等持续时间的一系列电信号，每个优选地具有零平均值。
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公开(公告)号：US5419204A
公开(公告)日：1995-05-30
申请号：US217736
申请日：1994-03-25
Applicant: Toshiyuki Yamaguchi , Akira Komoto
Inventor： Toshiyuki Yamaguchi , Akira Komoto
CPC classification number: G01L1/086 , G01L11/008
Abstract: A force measuring instrument for determining the strength of an applied force by measuring the strength of an electromagnetic force developed so as to counterbalance the applied force, the instrument including a force coil, a displacement sensor for detecting any displacement occurring on a scale balance, an analog arithmetic unit for performing PD operation of analog detecting signals sent by the displacement sensor, a pulse converter for converting the analog signal into a signal having a frequency depending upon the magnitude of the analog signal, an up/down counter for counting up or down pulse signals from the pulse converter depending upon the polarity of the analog signal, a D/A (digital-to-analog) converter for converting the number of counts by the up/down counter into an analog signal, and wherein the sum of the output of the D/A converter and the output of the analog arithmetic unit is fed back to the force coil, thereby ensuring that the counts by the counter alone are used to determine the measurements.
Abstract translation: 一种力测量仪器，用于通过测量产生的电磁力的强度来确定施加的力的强度，所述电磁力抵抗所施加的力，所述仪器包括力线圈，用于检测在刻度平衡上发生的任何位移的位移传感器， 用于对由位移传感器发送的模拟检测信号执行PD操作的模拟运算单元，用于将模拟信号转换为具有取决于模拟信号幅度的频率的信号的脉冲转换器，用于向上或向下计数的上/下计数器 取决于模拟信号的极性来自脉冲转换器的脉冲信号; D / A（数/模）转换器，用于将上/下计数器的计数数转换为模拟信号，其中， D / A转换器的输出和模拟运算器的输出被反馈到力线圈，从而确保仅使用计数器的计数 以确定测量。
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公开(公告)号：US5142921A
公开(公告)日：1992-09-01
申请号：US605947
申请日：1990-10-29
Applicant: Robert E. Stewart , Keith O. Warren
Inventor： Robert E. Stewart , Keith O. Warren
IPC: G01P15/125 , G01D3/06 , G01L1/08 , G01P15/13
CPC classification number: G01P15/131
Abstract: A force balanced instrument, such as an accelerometer, employs a pendulous mass having combined electrostatic pickoff and forcing plates on opposite sides thereof. The plates provide a constant attractive force in successive periods acting alternatively on opposing sides of the sensitive element. Force balance is achieved by controlling the duty cycle so that the difference in duration between each of the parts of a full cycle is a linear measure of acceleration. Voltage on each of the forcing plates is sensed independently immediately after each is charged with a fixed charging pulse which provides a fixed force level over the duration of the part cycle. The two successive voltage samples are stored, and the difference between them integrated to control the duty cycle of a pulse width modulator, which itself controls the duration of application of the alternately directed forces applied by the respective plates to the pendulous mass.
Abstract translation: 诸如加速度计的力平衡仪器使用具有组合的静电吸收和强制板在其相对侧上的下摆质量。 这些板在连续的周期中提供恒定的吸引力，作用在敏感元件的相对侧上。 通过控制占空比实现力平衡，使得整个循环的每个部分之间的持续时间差是加速度的线性度量。 在每个强制板上的电压在每个被充满固定的充电脉冲之后立即独立地感测，在固定的充电脉冲上提供在部件周期的持续时间内的固定的力水平。 存储两个连续的电压样本，并且它们之间的差被集成以控制脉冲宽度调制器的占空比，其本身控制由相应的板施加到下摆质量的交替指向的力的施加持续时间。
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公开(公告)号：US4851671A
公开(公告)日：1989-07-25
申请号：US164941
申请日：1988-03-07
Applicant: Wolfgang D. Pohl
Inventor： Wolfgang D. Pohl
IPC: G01B7/34 , G01B21/30 , G01L1/08 , G01L1/16 , G01N23/00 , G01N37/00 , G01Q10/06 , G01Q20/04 , G01Q60/32 , G01Q60/38 , H01J37/26
CPC classification number: G01Q10/065 , B82Y35/00 , G01Q10/045 , G01Q60/32 , Y10S977/851 , Y10S977/863
Abstract: This atomic force microscope includes a pointed tip (1) mounted on top of an oscillating crystal (2) which is translatable in xyz-directions by a conventional xyz-drive (4). A potential applied to a pair of electrodes (5, 6) coated on opposite faces of the crystal (2) causes the latter to oscillate with its resonance frequency. As the tip (1) is approached to a surface to be investigated, the frequency of oscillation of the crystal deviates from its original frequency. This deviation can be used in a feedback loop to control the distance in z-direction of the tip (1) from the surface being investigated and to plot an image of the contour of each scan performed by the tip (1) across the surface.
Abstract translation: 该原子力显微镜包括安装在振荡晶体（2）的顶部的尖端（1），其可以通过常规xyz驱动器（4）在xyz方向上平移。 施加到涂覆在晶体（2）的相对面上的一对电极（5,6）的电位使得后者以其谐振频率振荡。 当尖端（1）接近待测表面时，晶体的振荡频率偏离其原始频率。 该偏差可以用在反馈回路中以控制尖端（1）在被研磨表面的z方向上的距离，并绘制由尖端（1）穿过表面执行的每次扫描轮廓的图像。
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公开(公告)号：US4729672A
公开(公告)日：1988-03-08
申请号：US792542
申请日：1985-10-29
Applicant: Toshiaki Takagi
Inventor： Toshiaki Takagi
CPC classification number: G01K1/083 , G01K13/002 , Y10S220/19
Abstract: An electronic clinical thermometer including electronic circuitry and a battery housed in an elongate casing having at one end an extended, slender tip provided with a temperature sensing unit covered by a metal cap. The distal end of the slender tip has a plurality of annular ribs around its outer periphery, the annular ribs being covered by the metal cap. The annular ribs and the inner surface of the metal cap define air-filled chambers which prevent liquids from invading the interior of the casing.
Abstract translation: 一种电子体温计，包括电子电路和容纳在细长壳体中的电池，其一端具有延伸的，细长的末端，其具有由金属盖覆盖的温度感测单元。 细长末端的远端围绕其外周具有多个环形肋，环形肋被金属盖覆盖。 环形肋和金属盖的内表面限定充满空气的室，防止液体侵入壳体的内部。
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Patent Agency Ranking
公开(公告)号：US4543835A
公开(公告)日：1985-10-01
申请号：US479252
申请日：1983-03-28
Applicant: Joseph A. Volk, Jr. , Joseph A. Volk
Inventor： Joseph A. Volk, Jr. , Joseph A. Volk
CPC classification number: G01F1/30
Abstract: A linear force transducer includes an inclined plate mounted in a chute to be impacted by a flow of granular material, the plate being supported by one or more leaf springs from the chute. An actuator rod is mounted to the plate and extends to a servo mechanism which generates a force to resist deflection of the plate, the actuator rod being supported by a pair of spaced leaf springs. The servo mechanism includes an electromagnetic force generator to apply a force to the actuator rod, with an electronic circuit to produce an electrical current in response to a force applied to the inclined plate to energize the electromagnetic force generator.
Abstract translation: 线性力传感器包括安装在滑槽中的倾斜板，其被颗粒材料流冲击，该板由一个或多个板簧从滑槽支撑。 致动器杆安装到板上并延伸到伺服机构，该伺服机构产生力以抵抗板的偏转，致动器杆由一对隔开的板簧支撑。 伺服机构包括电磁力发生器，用于向致动器杆施加力，电子电路响应于施加到倾斜板的力而产生电流，以激励电磁力发生器。
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公开(公告)号：US4502333A
公开(公告)日：1985-03-05
申请号：US536285
申请日：1983-09-27
Applicant: Tatsuhide Shiga , Mikio Tanaka , Yoshikuni Doki , Yoshihiro Tsuruoka , Masatoshi Fujiwara
Inventor： Tatsuhide Shiga , Mikio Tanaka , Yoshikuni Doki , Yoshihiro Tsuruoka , Masatoshi Fujiwara
CPC classification number: G01L11/004 , G01D5/04 , G01L1/08
Abstract: In a three force balanced mechanism of the type comprising a floating pivot, an input force transmitting member, a feedback force transmitting member, one end of these members being connected to the floating pivot and a flexible span setting member with one end secured to the floating pivot, the span setting member being inclined with respect to the input force transmitting member, the floating pivot has a cylindrical surface intersecting the two force transmitting members and one end of the span setting member is wound about or unwound from the cylindrical surface. In one embodiment the cylindrical floating pivot is formed a notch having side surfaces orthogonal to each other and the two force transmitting members are secured to respective side surfaces.
Abstract translation: 在包括浮动枢轴，输入力传递构件，反馈力传递构件的这种类型的三力平衡机构中，这些构件的一端连接到浮动枢轴，以及柔性跨距设定构件，其一端固定到浮动 枢轴，所述跨距设定构件相对于所述输入力传递构件倾斜，所述浮动枢轴具有与所述两个力传递构件相交的圆柱形表面，并且所述跨距设定构件的一端被卷绕在所述圆柱形表面上或从所述圆柱形表面展开。 在一个实施例中，圆柱形浮动枢轴形成有具有彼此正交的侧表面的凹口，并且两个力传递构件固定到相应的侧表面。
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公开(公告)号：US4083237A
公开(公告)日：1978-04-11
申请号：US770776
申请日：1977-02-22
Applicant: Peter S. Levesque
Inventor： Peter S. Levesque
CPC classification number: G01D5/2266 , G01L1/086
Abstract: A displacement detector yielding an electrical output signal that is linearly proportional to the extent of input motion. The input motion to be monitored is applied to the shiftable armature of a differential reluctance transducer constituted by a pair of transformers, each having a primary, a main secondary and an auxiliary secondary. Fed to the primaries is a high-frequency drive voltage generated by an oscillator whose amplitude is regulated by a feedback loop in which a feedback voltage taken from the auxiliary secondaries is compared with a reference voltage to provide a control voltage that so regulates the drive voltage oscillator as to cancel out the effect of temperature on the output signal derived from the main secondaries.
Abstract translation: 产生与输入运动程度成线性比例的电输出信号的位移检测器。 要监控的输入运动被应用于由一对变压器构成的差分磁阻换能器的可移动电枢，每个变压器具有初级，主级和辅助级。 馈送到原色的是由振荡器产生的高频驱动电压，其振幅由反馈回路调节，其中从辅助辅助线路获取的反馈电压与参考电压进行比较，以提供调节驱动电压的控制电压 振荡器来消除温度对从主二次导出的输出信号的影响。
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公开(公告)号：US4004458A
公开(公告)日：1977-01-25
申请号：US664416
申请日：1976-03-05
Applicant: Erich Knothe , Franz Josef Melcher , Christoph Berg
Inventor： Erich Knothe , Franz Josef Melcher , Christoph Berg
Abstract: A balance or dynamometer which comprises a coil in the work gap of an eleomagnet having a core provided with discrete groups of turns, the number of ampere turns in the groups of turns corresponding to the sequence or code values of a preselector code, the coil and electromagnet being disturbed from a predetermined position relative to each other under the influence of a force; such disturbance being recorded by a position indicator connected to the input of a forward/backward counter; means for arranging that the number registered in the counter at any one time connects an associated number of groups of turns to a constant current source connected to the coil; the coil and electromagnet returning to said predetermined position when the counter has connected an appropriate number of groups of turns to the constant current source to compensate for the disturbing force.
Abstract translation: 一种天平或测力计，其包括在具有分立匝数的铁芯的电磁体的工作间隙中的线圈，所述匝数的匝数与预选器代码的序列或代码值相对应，线圈和 电磁铁在力的作用下相对于彼此从预定位置扰乱; 这种干扰由连接到前向/后向计数器的输入的位置指示器记录; 用于布置在任一时刻在计数器中登记的号码将相关数量的匝数连接到连接到线圈的恒流源的装置; 当计数器已经将适当数量的匝数连接到恒流源以补偿干扰力时，线圈和电磁体返回到所述预定位置。
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公开(公告)号：US3928724A
公开(公告)日：1975-12-23
申请号：US51356274
申请日：1974-10-10
Applicant: ANDERSEN BYRAM KOUMA MURPHY LO
Inventor： BYRAM HAROLD E , LOCKARD RONALD J , ANDERSEN ROLAND D , CARNEY VINCENT L
CPC classification number: H04M3/44 , G06F3/16 , H04M3/4931
Abstract: To provide voice-controlled automatic directory-assistance to telephone users, a user is connected to a central voice-actuated directory-assistance system upon dialing the uniform directory assistance number, which system provides recorded instructions and responds to the spelled name of the subscriber by providing coded digital signals to a computer. The computer identifies the subscriber from the digital code and addresses a memory of recorded information that causes the telephone to verbally inform the user of the subscriber''s correct telephone number.
Abstract translation: 为了向电话用户提供语音控制的自动目录帮助，用户通过拨打统一目录援助号码连接到中央语音启动的目录辅助系统，该系统提供记录的指令并且通过以下方式对用户的拼写名称作出响应： 向计算机提供编码数字信号。 计算机从数字代码识别用户，并且寻址记录信息的存储器，该存储器使得电话口令通知用户用户正确的电话号码。
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