MICRO ELECTRO-MECHANICAL STRAIN DISPLACEMENT SENSOR AND USAGE MONITORING SYSTEM

    公开(公告)号:US20240077369A1

    公开(公告)日:2024-03-07

    申请号:US18227440

    申请日:2023-07-28

    Inventor: Paul D OKULOV

    Abstract: A low power consumption multi-contact micro electro-mechanical strain/displacement sensor and miniature autonomous self-contained systems for recording of stress and usage history with direct output suitable for fatigue and load spectrum analysis are provided. In aerospace applications the system can assist in prediction of fatigue of a component subject to mechanical stresses as well as in harmonizing maintenance and overhauls intervals. In alternative applications, i.e. civil structures, general machinery, marine and submarine vessels, etc., the system can autonomously record strain history, strain spectrum or maximum values of the strain over a prolonged period of time using an internal power supply or a power supply combined with an energy harvesting device. The sensor is based on MEMS technology and incorporates a micro array of flexible micro or nano-size cantilevers. The system can have extremely low power consumption while maintaining precision and temperature/humidify independence.

    FORCE SENSOR USING DISPLACEMENT AMPLIFICATION MECHANISM AND APPARATUS HAVING THE SAME FOR MEASURING WEIGHT

    公开(公告)号:US20170241827A1

    公开(公告)日:2017-08-24

    申请号:US15195015

    申请日:2016-06-28

    CPC classification number: G01L1/044 G01G21/161

    Abstract: Disclosed is a force sensor and an apparatus having the sensor for measuring weight. The force sensor and apparatus can enhance detection sensitivity by amplifying a displacement of an elastic body having high strength, thereby measuring weight. The sensor includes: a base; an elastic structure provided as a housing disposed on the base, and downwardly deformed when weight is applied to the elastic structure; an adjusting member coupled to an upper surface of the elastic structure by penetrating the upper surface; a lever disposed below the elastic structure, and amplifying a displacement of the elastic structure transferred via the adjusting member by being in contact with the adjusting member; a sensor disposed above the base, and generating an electric signal indicative of a distance from the sensor to the lever; and a circuit board disposed between an upper surface of the base and a lower surface of the sensor.

    WEIGHT SENSING
    76.
    发明申请
    WEIGHT SENSING 审中-公开
    重量感测

    公开(公告)号:US20170067774A1

    公开(公告)日:2017-03-09

    申请号:US15340116

    申请日:2016-11-01

    Abstract: A weight sensor may include a weighing platform and a load cell coupled to the platform to sense a weight applied to the platform, the load cell may include a deformable plate with one or more strain gauges arranged to provide an electrical signal representing the weight applied to the platform, and a base supporting the load cell, wherein the deformable plate is movably mounted to the base at only three contact points, the contact points allowing lateral movement of the plate when the plate deforms in response to a weight applied to the platform. The weight sensor makes it possible to monitor the weight and weight shifting of two people sharing the bed. The weight sensor is self-centering when a load is applied off-center to the platform, which is beneficial when used underneath a bed, e.g., under a bed leg or other support member which may not be aligned.

    Abstract translation: 重量传感器可以包括称重平台和耦合到平台的负载传感器以感测施加到平台的重量,测力传感器可以包括具有一个或多个应变仪的可变形板,所述应变仪布置成提供表示施加到 平台和支撑测力传感器的基座,其中可变形板仅在三个接触点处可移动地安装到基座,当板响应于施加到平台的重量而变形时,接触点允许板的横向移动。 重量传感器可以监控两个人共享床的重量和重量。 当负载偏移到平台上时,重量传感器是自对中的,当在床下方(例如在床腿或其他可能不对准的支撑构件)下使用时,这是有益的。

    FORCE SENSOR AND ROBOT HAVING FORCE SENSOR
    79.
    发明申请
    FORCE SENSOR AND ROBOT HAVING FORCE SENSOR 有权
    力传感器和具有力传感器的机器人

    公开(公告)号:US20150177082A1

    公开(公告)日:2015-06-25

    申请号:US14640022

    申请日:2015-03-06

    Abstract: A force sensor according to embodiments includes a light-emitting unit, a pair of first light detectors, a reflector, and a first frame. The light-emitting unit emits diffuse light. The first light detectors are arranged in a first direction with the light-emitting unit interposed therebetween. The reflector is arranged to face the light-emitting unit on an optical axis of the light-emitting unit and reflects the diffuse light emitted from the light-emitting unit toward the first light detectors. The first frame is deformed in the first direction so that a reflection range of the diffuse light reflected by the reflector is displaced in the first direction.

    Abstract translation: 根据实施例的力传感器包括发光单元,一对第一光检测器,反射器和第一框架。 发光单元发射漫射光。 第一光检测器被布置在第一方向上,发光单元插入其间。 反射器被布置为在发光单元的光轴上面向发光单元,并将从发光单元发射的漫射光朝向第一光检测器反射。 第一框架在第一方向上变形,使得由反射器反射的漫射光的反射范围在第一方向上移位。

    Load Suspension and Weighing System for a Dialysis Machine Reservoir
    80.
    发明申请
    Load Suspension and Weighing System for a Dialysis Machine Reservoir 有权
    用于透析机水箱的负载悬挂和称重系统

    公开(公告)号:US20140174835A1

    公开(公告)日:2014-06-26

    申请号:US13726450

    申请日:2012-12-24

    Abstract: A load suspension and weighing system for a removable reservoir unit of a portable dialysis machine includes a centrally located flexure assembly. The flexure assembly includes magnets and a number of flexure rings which allow for movement of the magnets about a fixed circuit board. Sensors in the circuit board sense changes in the magnetic field as the magnets move in relation to the circuit board. The magnetic field changes produce a voltage output which is used by a processor to generate weight calculations. The top of the flexure assembly is attached to the interior of the dialysis machine. The entirety of the reservoir unit is suspended by a first internal frame that is attached to the bottom of the flexure assembly. Having a single flexure assembly positioned above the reservoir unit provides more accurate weight measurements while also preventing damage to the assembly from water spillage.

    Abstract translation: 用于便携式透析机的可移动储存器单元的负载悬挂和称重系统包括位于中心的挠曲组件。 挠曲组件包括磁体和允许磁体围绕固定电路板移动的多个挠性环。 当磁体相对于电路板移动时,电路板感应器中的传感器磁场的变化。 磁场变化产生电压输出,由处理器用于产生重量计算。 挠曲组件的顶部连接到透析机的内部。 储存器单元的整体由连接到挠曲组件的底部的第一内部框架悬挂。 设置在储存器单元上方的单个挠曲组件提供更精确的重量测量,同时还防止组件从水溢出中的损坏。

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