Abstract:
A yaw-rate sensor having a substrate and a plurality of movable substructures that are mounted over a surface of the substrate, the movable substructures being coupled to a shared, in particular, central spring element, means being provided for exciting the movable substructures into a coupled oscillation in a plane that extends parallel to the surface of the substrate, the movable substructures having Coriolis elements, means being provided for detecting deflections of the Coriolis elements induced by a Coriolis force, a first Coriolis element being provided for detecting a yaw rate about a first axis, a second Coriolis element being provided for detecting a yaw rate about a second axis, the second axis being oriented perpendicularly to the first axis.
Abstract:
PROBLEM TO BE SOLVED: To provide micro component or nano component which can be adapted to NEMS, that is, sensor of very small dimension (nanometer scale) and has high sensitivity and accuracy (higher signal/noise ratio, lower temperature drift). SOLUTION: This system comprises a piezo resistance sensor which has test body affected by actuating force to be measured, at least one suspended piezo resistance strain gauge, and strain amplification cell equipped with means for detecting the strain affected by the test body under operation of the above actuating force and at least two rigid arms mechanically-connected each other by at least one link element in a first level of ends on at least two rigid arms. In the strain amplification cell, a second end on the first rigid arm of the above two rigid arms is mechanically-connected to the test body, the second end on the second rigid arm of the above two rigid arms is secured to base plate, while the above link element is mechanically-connected to the first end of the above suspended piezo resistance strain gauge. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a resonance device detecting within a piezoresistance plane which is manufactured by using a surface technique on a bulk. SOLUTION: The resonance device comprises a resonator (10) which is connected to the bulk by at least one embedded portion (12), a vehicle 14 which excites the resonator, a detecting vehicle equipped with at least one suspension beam type strain gauge made from piezoresistive material (11). Each strain gauge has a common plane with the resonator. The strain gauge is connected to the resonator (10) at a point situated outside of this at least one embedded portion (12) in order to increase the stress measured by the strain gauge. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a novel design method for compactifying a component, and to provide a surface mounted type MEMS resonant sensor capable of solving a problem wherein sensitivity gets worse in accompaniment to size reduction of the component, and a manufacturing method therefor. SOLUTION: This surface-type MEMS resonant sensor provided with a resonator 4 excited within a plane is provided with the first so-called thick area 2 having the first thickness E 1 , and for constituting a vibration mass, and the second thin area 4 having the second thickness E 2 thinner than the first thickness, and for performing detection. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a rotation angular velocity sensor which can measure Coriolis force interacting in parallel with the surface of a vibrating mass object. SOLUTION: This sensor is equipped with the 1st vibration mechanism containing the vibrating mass object 1 suspended onto a frame 3 with a plurality of webs 4. The above plurality of webs 4 have a large length in the 1st direction in parallel with a flat surface of the frame, while the vibration mechanism is excitative so as to vibrate in the 2nd direction in parallel with flat surface of the frame and perpendicular to the above 1st direction of the webs, containing an acceleration sensor 2. The acceleration sensor is formed in order to inform acceleration in the above 1st direction of the webs, the 2nd vibration mechanism equipped with the 2nd acceleration sensor is suspended onto the frame 3, and these two 1st and 2nd vibration mechanisms are mutually connected through at least one another webs 13, 14 so as to oppositely be vibrated. COPYRIGHT: (C)2007,JPO&INPIT