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    • 2. 发明申请
    • MICROELECTROMECHANICAL (MEM) FLUID HEALTH SENSING DEVICE AND FABRICATION METHOD
    • 微电子医疗(MEM)流体卫生感测装置及制造方法
    • WO2007037992A2
    • 2007-04-05
    • PCT/US2006035780
    • 2006-09-12
    • ROCKWELL SCIENT LICENSING LLCDE NATALE JEFFREY FBORWICK ROBERT L IIISTUPAR PHILIP AKENDIG MARTIN W
    • DE NATALE JEFFREY FBORWICK ROBERT L IIISTUPAR PHILIP AKENDIG MARTIN W
    • G01N11/00
    • G01N33/2888G01N11/16
    • A microelectromechanical (MEM) fluid health sensing device comprises a viscosity sensor which provides an output that varies with the viscosity of a fluid in which it is immersed, and at least one other sensor which provides an output that varies with another predetermined parameter of the fluid. The viscosity sensor is preferably a MEM device fabricated by means of a "deep etch" process. The sensors are preferably integrated together on a common substrate, though they might also be fabricated separately and packaged together to form a hybrid device. A data processing means may be included which receives the sensor outputs and provides one or more outputs indicative of the health of the fluid. Sensor types which may be part of the present device include, for example, a temperature sensor, a MEM electrochemical sensor, a MEM accelerometer, a MEM contact switch lubricity sensor, and/or an inductive metallic wear sensor.
    • 微机电(MEM)流体健康感测装置包括粘度传感器,该粘度传感器提供随着浸入其中的流体的粘度而变化的输出,以及提供随流体的另一预定参数而变化的输出的至少一个其它传感器 。 粘度传感器优选是通过“深蚀刻”工艺制造的MEM器件。 传感器优选地集成在公共基板上,尽管它们也可以单独制造并且封装在一起以形成混合装置。 可以包括接收传感器输出并提供指示流体健康的一个或多个输出的数据处理装置。 可以是本装置一部分的传感器类型包括例如温度传感器,MEM电化学传感器,MEM加速度计,MEM接触开关润滑性传感器和/或感应金属磨损传感器。
    • 3. 发明申请
    • MICROELECTROMECHANICAL (MEM) VISCOSITY SENSOR AND METHOD
    • 微电子力学(MEM)粘度传感器和方法
    • WO2007033178A3
    • 2007-10-25
    • PCT/US2006035494
    • 2006-09-11
    • ROCKWELL SCIENT LICENSING LLCDE NATALE JEFFREY FBORWICK ROBERT LSTUPAR PHILIP A
    • DE NATALE JEFFREY FBORWICK ROBERT LSTUPAR PHILIP A
    • G01N11/00
    • G01N11/16
    • A MEM viscosity sensor comprises a substrate, with first and second support structures affixed to the substrate and spaced-apart . A compliant member is affixed to the support structures such that it is suspended above and can flex vertically with respect to the substrate. The member has a high density of perforations, through which a fluid whose viscosity is to be sensed can flow. The sensor includes a drive means to apply a force to the member, and a sensing means to sense the vertical motion of the member in response to the applied force. The member's perforations ensure that its resistance to motion will be shear in nature, and minimizes sensitivity to particulates. The substrate is also preferably perforated to further reduce non-shear forces and facilitate fluid exchange.
    • MEM粘度传感器包括基底,第一和第二支撑结构固定到基底并间隔开。 柔性构件被固定到支撑结构,使得它被悬挂在上方并且可以相对于基底垂直弯曲。 该构件具有高密度的穿孔,通过该穿孔密度可以流动要检测粘度的流体。 传感器包括用于向部件施加力的驱动装置和用于响应于所施加的力来感测部件的垂直运动的感测装置。 该成员的穿孔确保其运动的阻力本质上是剪切性的,并且使对颗粒的敏感性最小化。 衬底还优选地被穿孔以进一步减小非剪切力并促进流体交换。