公开(公告)号：US20020157477A1

公开(公告)日：2002-10-31

申请号：US09844437

申请日：2001-04-27

Inventor： Richard A. Hanson

IPC: G01N003/00

CPC classification number: G01L1/162

Abstract: Force sensing transducers which employ inline sensing and an integral crossarm support for a sensing component. These transducers have a metal frame with at least one ring; a beamlike crossarm which lies within, spans, and is integral with a ring of the transducer frame; and at least one strain sensor mounted, preferably under preload, in an aperture in the innermost (or single) ring.

Abstract translation: 力感测传感器，其采用在线感测和用于感测部件的整体的交叉臂支撑。 这些传感器具有至少一个环的金属框架; 一个梁状的横臂，位于传感器框架的环之内，跨越并与转环的环形成一体; 和至少一个应变传感器，优选地在预加载下安装在最内（或单个）环中的孔中。

公开(公告)号：US20020043898A1

公开(公告)日：2002-04-18

申请号：US09951260

申请日：2001-09-12

Inventor： James R. Sebastian ,  David A. Stubbs ,  Rollie E. Dutton

IPC: H01L041/04

CPC classification number: G01P15/0907 ,  G01L1/16 ,  G01L1/162 ,  G01L23/10 ,  G01L23/222

Abstract: The present invention provides a sensor that can be operated at high temperatures. The sensor comprises a first electrode, a second electrode, and an aluminum nitride film which lies between the first and second electrode. The sensor can be used to measure pressure, acceleration, or force at high temperatures.

Abstract translation: 本发明提供一种可在高温下操作的传感器。 传感器包括位于第一和第二电极之间的第一电极，第二电极和氮化铝膜。 该传感器可用于测量高温下的压力，加速度或力。

公开(公告)号：US5574220A

公开(公告)日：1996-11-12

申请号：US512906

申请日：1995-08-09

Applicant: Yvon Amand ,  Jean-Pierre Peghaire

Inventor： Yvon Amand ,  Jean-Pierre Peghaire

IPC: G01L1/10 ,  G01L1/16 ,  G01P15/097 ,  G01P15/10 ,  H03H9/19 ,  G01L1/26

CPC classification number: G01P15/097 ,  G01L1/162 ,  G01P2015/0828

Abstract: A vibrating beam force-frequency transducer has a flat elongate blade designed to be interposed between two elements for applying a longitudinal force to the blade. The middle portion of the blade constitutes two lateral beams which are separated by a gap and which are interconnected by terminal portions of the blade. The beams carry electrodes for setting the beams into vibration in the plane of the major faces of the blade and for measuring the frequency of vibration. The terminal portions have extensions parallel to the beams and directed towards the middle of the blade in the longitudinal direction. The extensions are arranged for connecting them to the elements in zones that are closer together than are the terminal portions.

Abstract translation: 振动梁力 - 频率换能器具有设计成插入在两个元件之间的扁平细长叶片，用于向叶片施加纵向力。 叶片的中间部分构成两个横向梁，它们被间隙分开，并由叶片的末端部分相互连接。 光束携带用于将光束设置在叶片主面的平面内的振动并用于测量振动频率的电极。 端子部分具有平行于梁的延伸部并沿着纵向方向指向叶片的中部。 延伸部被布置成将它们连接到比端子部分更靠近在一起的区域中的元件。

公开(公告)号：US5313023A

公开(公告)日：1994-05-17

申请号：US863162

申请日：1992-04-03

Applicant: Thomas H. Johnson

Inventor： Thomas H. Johnson

IPC: G01G3/12 ,  G01L1/04 ,  G01L1/14 ,  G01L1/16 ,  G01L1/22 ,  G01L9/00 ,  G01P15/097 ,  G01P15/10 ,  G01G3/08 ,  G01G3/14 ,  G01L1/10

CPC classification number: G01P15/097 ,  G01L1/14 ,  G01L1/162 ,  G01L1/2206 ,  G01L9/0005 ,  G01L9/0022

Abstract: The invention is a load cell for the measurement of force, independent of displacement, created by means such as weight, acceleration, pressure, and the like. The load cell has a beam structure with beams positioned parallel to each other in at least one plane. Generally, these parallel beams are attached to a stationary substrate and have sensing means attached between the two beams. In operation, deflection of one beam creates a response in the sensing means due to the relative action or deflection in the second beam.

Abstract translation: 本发明是用于测量力的测力传感器，其独立于通过重量，加速度，压力等方式产生的位移。 称重传感器具有在至少一个平面中彼此平行布置的梁的梁结构。 通常，这些平行光束被附接到固定的基板上并且具有连接在两个光束之间的感测装置。 在操作中，一个光束的偏转由于第二光束中的相对作用或偏转而在感测装置中产生响应。

公开(公告)号：US4932259A

公开(公告)日：1990-06-12

申请号：US347657

申请日：1989-05-05

Applicant: Sadayasu Ueno

Inventor： Sadayasu Ueno

IPC: G01D5/14 ,  G01L1/16 ,  G01P15/09 ,  G01P15/097 ,  G01P15/10

CPC classification number: G01P15/09 ,  G01L1/162

Abstract: A piezoelectric detector for detecting a physical quantity comprising, a piezoelectric device having a first electrode and a second electrode for modulating a carrier A.C., signal a excitation power source for supplying the carrier A.C. signal to the first electrode so as to excite the piezoelectric device, a weight mechanically coupled to the piezoelectric device so as to add the physical quantity to the piezoelectric device, an A.C. amplifier for amplifying a modulated output from the second electrode, and a demodulator for demodulating an amplified output from the A.C. amplifier. The piezoelectric detector measures the physical quantity while having a very low frequency range which D.C. includes.

公开(公告)号：US4724351A

公开(公告)日：1988-02-09

申请号：US692569

申请日：1984-11-14

Applicant: Errol P. EerNisse ,  Walter P. Kistler

Inventor： Errol P. EerNisse ,  Walter P. Kistler

IPC: H01L41/08 ,  G01L1/16 ,  G01P15/097 ,  G01P15/10

CPC classification number: G01P15/097 ,  G01L1/162

Abstract: A double resonator beam force transducer configured to minimize longitudinal pumping by making the beams vibrate symmetrically. This can be accomplished by making the boundary conditions of the beams symmetrical or, if the boundary conditions are nonsymmetric, then by biasing the beams inwardly or outwardly to compensate for the nonsymmetrical boundary conditions of the beams. In the nonsymmetrical case where the beams would bow outwardly at their fundamental resonant frequency or an odd overtone thereof, an inward bias is provided to minimize longitudinal pumping. In the nonsymmetrical case where the beams would bow inwardly at an even overtone of the fundamental resonant frequency, an outward bias is provided to minimize longitudinal pumping. The inward or outward bias is provided in various embodiments by bowing the beams inwardly or outwardly, placing masses on the inner or outer edges of the beams, or tapering the inner or outer edges of the beams so that the width of the beams increase toward their midpoints.

Abstract translation: PCT No.PCT / US83 / 00471 Sec。 371日期1984年11月14日 102（e）日期1984年11月14日PCT提交1983年4月1日PCT公布。 公开号WO84 / 03998 日期：1984年10月11日。双谐振器光束力传感器，其被配置为通过使光束对称地振动来最小化纵向泵浦。 这可以通过使光束的边界条件对称来实现，或者如果边界条件是非对称的，则通过向内或向外偏置光束来补偿光束的非对称边界条件。 在非对称情况下，梁将以其基本共振频率或奇数谐波向外弯曲，提供向内偏压以最小化纵向泵送。 在非对称情况下，梁将以基本谐振频率的均匀泛音向内弯曲，提供向外的偏压以最小化纵向泵送。 在各种实施例中通过向内或向外弯曲梁来提供向内或向外偏压，将质量放置在梁的内边缘或外边缘上，或者使梁的内边缘或外边缘逐渐变细，使得梁的宽度朝向它们 中点

公开(公告)号：US4644804A

公开(公告)日：1987-02-24

申请号：US631811

申请日：1984-07-17

Applicant: A. Jurgen Ramm ,  Jerome Formaz

Inventor： A. Jurgen Ramm ,  Jerome Formaz

IPC: G01L1/16 ,  G01L9/00 ,  G01L1/10

CPC classification number: G01L9/0022 ,  G01L1/162 ,  G01L9/0016

Abstract: A thin, piezoelectric membrane provided on both surfaces with electrodes, which may be disc-shaped or ring-shaped, is made to oscillate in the piezoelectric manner and the membrane is arranged to have some exterior force or pressure applied thereto, whereby changes in the frequency of oscillation are in response to the size of the force exerted on the membrane.

Abstract translation: 设置在两个表面上的具有可以是圆盘形或环形的电极的薄的压电膜被制成以压电方式振荡，并且膜被布置成具有施加到其上的一些外力或压力，由此， 振荡频率响应于施加在膜上的力的大小。

公开(公告)号：US4594898A

公开(公告)日：1986-06-17

申请号：US617712

申请日：1984-06-06

Applicant: Richard G. Kirman ,  Roger M. Langdon

Inventor： Richard G. Kirman ,  Roger M. Langdon

IPC: G01L1/10 ,  G01L1/16 ,  G01L9/00

CPC classification number: G01L1/162 ,  G01L9/0022

Abstract: A piezoelectric beam structure for a vibrating beam force sensor in which three coplanar beams of piezoelectric material are spaced side by side and supported between respective common mountings at either end. The two outer counterbalancing beams in operation flex in opposite phase to the center main beam, with each beam flexing in a direction normal to the beam plane. A force sensor which includes this piezoelectric beam structure.

Abstract translation: 一种用于振动束力传感器的压电束结构，其中三个共面的压电材料束彼此并排地间隔开并且支撑在两端的各个公共安装件之间。 两个外部平衡光束在操作中与中心主光束相反地弯曲，每个光束在垂直于光束平面的方向上弯曲。 包括该压电梁结构的力传感器。

公开(公告)号：US4445065A

公开(公告)日：1984-04-24

申请号：US301623

申请日：1981-09-14

Applicant: William C. Albert

Inventor： William C. Albert

IPC: G01L1/16 ,  H01L41/08

CPC classification number: G01L1/162

Abstract: A single beam force transducer has a beam characterized by a thickened central portion and tapered outward portions. The support members of the transducer are thickened and are thus stiffer while the isolator masses are shortened. These critical configuration changes raise the undesirable "tuning fork" resonant frequency of the beam supporting structure far above that of the beam and ensures that the isolating structure behaves as a rigid body.

Abstract translation: 单个梁力传感器具有由中心部分增厚的中心部分和向外锥形部分的特征。 换能器的支撑构件变厚，因此在隔离体质量缩短的同时变硬。 这些关键配置变化会使梁支撑结构的不必要的“音叉”谐振频率远高于光束的谐振频率，并确保隔离结构表现为刚体。

公开(公告)号：US4297872A

公开(公告)日：1981-11-03

申请号：US108477

申请日：1979-12-31

Applicant: Kyoichi Ikeda ,  Motoyoshi Ando

Inventor： Kyoichi Ikeda ,  Motoyoshi Ando

IPC: G01K11/26 ,  G01L1/16 ,  G01L9/00 ,  G01N9/00 ,  G01H13/00 ,  G01L11/00

CPC classification number: G01L1/162 ,  G01K11/26 ,  G01L9/0008 ,  G01L9/0022 ,  G01N9/002

Abstract: A vibration type transducer is provided in which various physical quantities, for example, the pressure, density, force and temperature are measured from the natural frequencies of the mechanically vibrated vibrator.The vibrating element is vibrated in a plurality of vibration modes and a plurality of resultant frequency signals are processed to obtain signals associated with the various physical quantities. The system is not influenced by physical quantity other than the physical quantity to be measured.

Abstract translation: 提供了一种振动型传感器，其中从机械振动的振动器的固有频率测量各种物理量，例如压力，密度，力和温度。 振动元件以多个振动模式振动，并且处理多个合成频率信号以获得与各种物理量相关联的信号。 物理量不受物理量的影响。