摘要:
A microelectromechanical sensor module includes a sensing mechanism for measuring an acceleration, pressure, air humidity or the like, a control mechanism for controlling the sensing mechanism, an energy supply mechanism for supplying the sensor module with energy, and a transmission mechanism for transmitting signals of the sensing mechanism. At least three of the mechanisms are integrated at the chip level in at least one chip in each case. A corresponding method is implemented to produce the microelectromechanical sensor module.
摘要:
A method for producing a micromechanical component is described. The method includes providing a substrate having a layer system including an insulating material situated on the substrate, a conductive layer section and a protective layer structure connected to the conductive layer section, which borders a section of the insulating material. The method furthermore includes carrying out an isotropic etching process for removing a part of the insulating material, the conductive layer section and the protective layer structure preventing the removal of the bordered section of the insulating material; and a structural element being developed, which includes the conductive layer section, the protective layer structure and the bordered section of the insulating material.
摘要:
A method for adjusting an acceleration sensor which includes a substrate and a seismic mass, the acceleration sensor having first and further first electrodes attached to the substrate on a first side, counter-electrodes of the seismic mass being situated between the first and further first electrodes, the acceleration sensor having further second electrodes on a second side and further fourth electrodes on a fourth side opposite the second side, an essentially equal first excitation voltage being applied to the first and further first electrodes in a first step for exciting a first deflection of the seismic mass along a first direction, the first deflection being compensated in a second step by applying a first compensation voltage to the further second and further fourth electrodes.
摘要:
A microsystem, e.g., a micromechanical sensor, has a first cavity which is sealed off from the surroundings and a second cavity which is sealed off from the surroundings. The first cavity is bounded by a first bond joint and the second cavity is bounded by a second bond joint. Either the first bond joint or the second bond joint is a eutectic bond joint or a diffusion-soldered joint.
摘要:
A micro electrical-mechanical system (MEMS) is disclosed. The MEMS includes a substrate, a first pivot extending upwardly from the substrate, a first lever arm with a first longitudinal axis extending above the substrate and pivotably mounted to the first pivot for pivoting about a first pivot axis, a first capacitor layer formed on the substrate at a location beneath a first capacitor portion of the first lever arm, a second capacitor layer formed on the substrate at a location beneath a second capacitor portion of the first lever arm, wherein the first pivot supports the first lever arm at a location between the first capacitor portion and the second capacitor portion along the first longitudinal axis, and a first conductor member extending across the first longitudinal axis and spaced apart from the first pivot axis.
摘要:
A micromechanical acceleration sensor includes a substrate, an elastic diaphragm which extends parallel to the substrate plane and which is partially connected to the substrate, and which has a surface region which may be deflected perpendicular to the substrate plane, and a seismic mass whose center of gravity is situated outside the plane of the elastic diaphragm. The seismic mass extends at a distance over substrate regions which are situated outside the region of the elastic diaphragm and which include a system composed of multiple electrodes, each of which together with oppositely situated regions of the seismic mass forms a capacitor in a circuit. In its central region the seismic mass is attached to the elastic diaphragm in the surface region of the elastic diaphragm which may be deflected perpendicular to the substrate plane.
摘要:
A method and system are provided including a rotation-rate sensor having a substrate, a bearing, a vibrating structure suspended on the bearing by springs in a rotatable manner for performing a planar driving vibration motion, and drive means for producing the planar driving vibration motion of the vibrating structure. The rotation-rate sensor has first evaluation means for detecting a rotation in a first axis of rotation and second evaluation means for detecting a rotation in a second axis of rotation.
摘要:
A micromechanical device measures an acceleration, a pressure or the like. It comprises a substrate having at least one fixed electrode, a seismic mass moveably arranged on the substrate, at least one ground electrode, which is arranged on the seismic mass, and resetting means for returning the seismic mass into an initial position, wherein the fixed electrode and the ground electrode are configured in one measurement plane for measuring an acceleration, a pressure or the like in the measurement plane, and wherein the fixed electrode and the ground electrode are configured for measuring an acceleration, pressure or the like acting on the seismic mass perpendicular to the measurement plane. The disclosure likewise relates to a corresponding method and a corresponding use.
摘要:
A method for self-adjustment of a triaxial acceleration sensor during operation includes: calibrating the sensor; checking the self-adjustment for an interfering acceleration, with the aid of a measurement equation and estimated values for sensitivity and offset; repeating the adjustment if an interfering acceleration is recognized; and accepting the estimated values for sensitivity and offset as calibration values if an interfering acceleration is not recognized. The step of checking the self-adjustment includes: estimating sensitivity and/or offset and the variance thereof; determining an innovation as the difference between a measured value of the measurement equation and an estimated value of the measurement equation; testing the innovation for a normal distribution; and recognizing the interfering acceleration in the event of a deviation from the normal distribution.
摘要:
A micromechanical acceleration sensor includes a substrate, an elastic diaphragm which extends parallel to the substrate plane and which is partially connected to the substrate, and which has a surface region which may be deflected perpendicular to the substrate plane, and a seismic mass whose center of gravity is situated outside the plane of the elastic diaphragm. The seismic mass extends at a distance over substrate regions which are situated outside the region of the elastic diaphragm and which include a system composed of multiple electrodes, each of which together with oppositely situated regions of the seismic mass forms a capacitor in a circuit. In its central region the seismic mass is attached to the elastic diaphragm in the surface region of the elastic diaphragm which may be deflected perpendicular to the substrate plane.