公开(公告)号：US06450013B1

公开(公告)日：2002-09-17

申请号：US09622311

申请日：2000-08-31

Applicant: John G Gallagher

Inventor： John G Gallagher

IPC: G01N1116

CPC classification number: G01H1/10

Abstract: A transducer includes a resonant structure having a first spring-mass system extending to a connection mass or nexus to which is connected a second spring-mass system, which includes a sensing element. The two spring-mass systems vibrate in antiphase. The nexus is connected to a mechanical datum provided by a mounting by means of a semi-rigid connection member which is preferably stiffer than the first member and which can control the relative motions of the first and second spring-mass systems. The sensing element contains a re-entrant resonator constituted by a spring-mass system, which can be used to adjust the characteristics of the transducer.

Abstract translation: 换能器包括谐振结构，其具有延伸到连接质量或连接点的第一弹簧质量系统，第二弹簧质量系统连接到包括感测元件的第二弹簧质量系统。 两个弹簧 - 质量系统反相振动。 该连接件通过半刚性连接构件连接到由安装件提供的机械基准，半刚性连接构件优选地比第一构件更硬，并且可以控制第一和第二弹簧体系统的相对运动。 感测元件包含由弹簧质量系统构成的重入谐振器，其可用于调节换能器的特性。

公开(公告)号：US06813935B2

公开(公告)日：2004-11-09

申请号：US10382101

申请日：2003-03-06

Applicant: John G Gallagher

Inventor： John G Gallagher

IPC: G01N1110

CPC classification number: G01N11/162

Abstract: A mechanical resonator system such as a vibrational viscometer includes two distinct resonators, connected by a nexus. The system is capable of vibration in anti-phase with a first vibrational node in the region of the nexus and at least a second node. A compliant support is provided in the region of the first node and a semi-rigid support in the region of the second node.

Abstract translation: 诸如振动粘度计的机械谐振器系统包括通过连接连接的两个不同的谐振器。 该系统能够在关联区域和至少第二节点处与第一振动节点反相振动。 在第一节点的区域中提供顺应性支撑，并且在第二节点的区域中提供半刚性支撑。

公开(公告)号：US06907785B1

公开(公告)日：2005-06-21

申请号：US09744818

申请日：1999-07-06

Applicant: John G Gallagher

Inventor： John G Gallagher

IPC: G01L1/18 ,  G01N9/00 ,  G01N11/16 ,  G01N29/036 ,  G01N29/12 ,  G01N29/24 ,  G01N29/00 ,  G01P15/08

CPC classification number: G01N29/2437 ,  G01L1/183 ,  G01N9/002 ,  G01N11/16 ,  G01N29/036 ,  G01N29/12 ,  G01N2291/012 ,  G01N2291/014 ,  G01N2291/015 ,  G01N2291/02818 ,  G01N2291/0421

Abstract: A sensor of force or viscosity or other attributes of a fluid comprises a mechanical resonator (10) including an element (11; 18; 123) of which the stiffness at least partially determines a modal shape of the resonance of the resonator and means (21-23) for measuring a variation of a measure of the resonance as the stiffness of said element changes. The resonator (10) may comprise two beams (10a, 10b; 120, 121) connected at or near one end by a yoke (12; 122) which provides a clamped condition of the resonator at said one end and connected at or near another end by said element.

Abstract translation: 力或粘度的传感器或流体的其它属性包括包括元件（11; 18; 123）的机械谐振器（10），刚性至少部分地确定谐振器和装置（21）的谐振的模态形状 -23），用于当所述元件的刚度改变时测量谐振的测量的变化。 谐振器（10）可以包括通过轭（12; 122）在一端或其一端连接的两个梁（10a，10b; 120,121），所述轭（12; 122）在所述一端提供谐振器的夹紧状态， 靠近另一端由所述元件。