摘要:
A micromechanical sensor and a method for manufacturing a micromechanical sensor which has at least one membrane are provided. The membrane is made of a first material which is accommodated in a surrounding second material, and the membrane is configured for sensing a medium surrounding it. The membrane is reinforced, at least partly, by a third material at break-sensitive points on the membrane rim. Reinforcement of the membrane rim increases the stability and thus also the service life of the membrane and the sensor.
摘要:
A micromechanical sensor and a method for manufacturing a micromechanical sensor which has at least one membrane are provided. The membrane is made of a first material which is accommodated in a surrounding second material, and the membrane is configured for sensing a medium surrounding it. The membrane is reinforced, at least partly, by a third material at break-sensitive points on the membrane rim. Reinforcement of the membrane rim increases the stability and thus also the service life of the membrane and the sensor.
摘要:
A connecting structure for micromechanical oscillating devices, in particular micromechanical oscillating mirrors. The connecting structure is at least indirectly connectable to a micromechanical oscillating structure, on the one hand, and to an elastic element, on the other hand, for measuring torsions of the micromechanical oscillating structure, and includes at least one, in particular at least two, preferably three, legs which are situated parallel to a rotation axis of the micromechanical oscillating structure, and at least one further leg which is situated perpendicularly to the rotation axis. The extension of the connecting structure parallel to the rotation axis has at least two-and-a-half times, in particular three times, the extension of the connecting structure perpendicular to the rotation axis, and includes at least one resistance element for measuring torsions of the connecting structure, the resistance element being situated in the area of increased mechanical stress when the connecting structure undergoes torsion.
摘要:
A pressure sensor for pressure detection in a combustion chamber of internal combustion engines of motor vehicles has a housing provided with an opening, a measuring element, a plunger arranged in the opening of the housing and having one end acting on the measuring element so that a measuring signal is produced proportionally to a pressure to be determined, the plunger directly abutting against the measuring element and having a material with a yielding point which is smaller than a breaking limit of a material of the measuring element, the end of the plunger which acts on the measuring element is spherical and abuts against the measuring element with such a contact surface that occurring stresses do not exceed a predetermined nominal value.
摘要:
A connecting structure for micromechanical oscillating devices, in particular micromechanical oscillating mirrors. The connecting structure is at least indirectly connectable to a micromechanical oscillating structure, on the one hand, and to an elastic element, on the other hand, for measuring torsions of the micromechanical oscillating structure, and includes at least one, in particular at least two, preferably three, legs which are situated parallel to a rotation axis of the micromechanical oscillating structure, and at least one further leg which is situated perpendicularly to the rotation axis. The extension of the connecting structure parallel to the rotation axis has at least two-and-a-half times, in particular three times, the extension of the connecting structure perpendicular to the rotation axis, and includes at least one resistance element for measuring torsions of the connecting structure, the resistance element being situated in the area of increased mechanical stress when the connecting structure undergoes torsion.
摘要:
A micromechanical component, in particular a pressure sensor, including a substrate that has a membrane region, a surrounding region of the membrane region, at least one measuring resistance provided in the membrane region and modifiable by deformation of the membrane region, and a corresponding evaluation circuit provided in the surrounding region. An interference effect on the measuring resistance is producible by way of a deformation of parts, in particular conductor paths, of the evaluation circuit relative to the substrate. The invention also creates a corresponding equalization method on a test chip or as an individual final equalization.
摘要:
A micromechanical apparatus, a pressure sensor, and a method, a closed cavity being provided beneath a membrane, the membrane having a greater thickness in a first membrane region than in a second membrane region.
摘要:
A micromechanical component includes: at least one micromirror; and an integrated photodiode. The micromechanical component is part of a microprojector which further includes a light source. The integrated photodiode of the micromechanical component receives light from the light source.
摘要:
A pressure sensor includes a metallic membrane and a frame. For detecting the deflection of the membrane, a silicon bridge element having piezoresistive resistor elements is arranged on the membrane and the frame.