摘要:
The invention relates to a rotation rate sensor (100) for detecting a rotation rate, having a substrate (1) which has a main extension plane. The rotation rate extends in a direction either parallel or perpendicular to the main extension plane. The rotation rate sensor comprises a primary pair of seismic masses (11, 12) and a secondary pair of seismic masses (21, 22). The primary pair of seismic masses has a first primary mass (11) and a second primary mass (12), and the secondary pair of seismic masses has a first secondary mass (21) and a second secondary mass (22). The first primary mass and the second primary mass can be moved in relation to the substrate and with respect to each other in a primary deflection direction (P) parallel to the main extension plane of the rotation rate sensor, and the first secondary mass and the second secondary mass can be moved in relation to the substrate in a secondary deflection direction (S) parallel to the main extension plane of the rotation rate sensor. The first and second primary masses on the one hand and the first and second secondary masses on the other hand can be moved either antiparallel or parallel to each other in accordance with the particular deflection direction. The rotation rate sensor is characterized in that the primary deflection direction extends substantially perpendicularly to the secondary deflection direction. The primary pair of seismic masses and/or the secondary pair of seismic masses can be driven in such a way that, when the rotation rate sensor is rotated, the Coriolis force leads to the deflection of the first primary mass and the second primary mass and/or the deflection of the first secondary mass and the second secondary mass.
摘要:
The invention relates to a delta sigma modulator comprising an oscillatable system which is provided with a characteristic frequency (fR), an electronics unit and a regulation loop which acts the oscillatable system upon the electronics unit and vice versa. Said invention is characterised in that the regulation loop is embodied in such a way that an amplification in said regulation loop displays an amplification superelevation in a frequency range around the characteristic frequency (fR) of the oscillable system.
摘要:
The invention relates to a rotational rate sensor comprising a substrate and a Coriolis element (2a, 2b), said Coriolis element (2a, 2b) being arranged over a surface of a substrate. According to the invention, the Coriolis element (2a, 2b) can be stimulated in such a way that it oscillates parallel to a first axis (X); a deviation of the Coriolis element (2a, 2b), caused by a Coriolis force in a second axis (Y) which is essentially perpendicular to the first axis (X), can be detected; and the first and second axes (X, Y) are parallel to the surface of the substrate. The inventive rotational rate sensor is characterised in that force-mediating means (19, 20) are provided for mediating the action of a force between the substrate and the Coriolis element (2a, 2b).
摘要:
The invention relates to a yaw rate sensor, comprising a substrate (10), a bearing (20), an oscillating structure (40), which by means of springs (30) is rotatably suspended on the bearing (20) in order to perform a planar driving oscillating movement, and drive means for producing a planar driving oscillating movement of the oscillating structure (40). The essence of the invention is that the yaw rate sensor comprises first evaluation means for detecting a rotation in a first rotational axis and second evaluation means for detecting a rotation in a second rotational axis.
摘要:
The invention relates to a rotation rate sensor comprising a first and a second Coriolis element (100, 200) that are disposed side by side across the surface (1) of a substrate. Said Coriolis elements (100, 200) are induced to oscillate parallel to a first axis (Y). The Coriolis elements (100, 200) are deflected in a second axis (X) that is perpendicular to the first axis (Y) through the effect of a Coriolis force. The oscillations of the first and second Coriolis elements (100, 200) proceed in antiphase on trajectories that, without the effect of a Coriolis force, are two parallel straight lines.
摘要:
The invention relates to a rotational speed sensor comprising a Coriolis element (100) which is arranged on the surface (1) of a substrate. The Coriolis element (100) is excited in order to vibrate parallel to a first axis (X). The Coriolis element (100) is deflected on a second axis (Y) which is perpendicular to the first axis (X) by virtue of Coriolis force. A detection element (140) is provided for detecting said deflection.