摘要:
The invention relates to an energy-generating device (14) for a tyre sensor module (4) of a vehicle tyre (1), which device (14) has: a piezoelement (7) which can be adjusted between a first stable bent position and a second stable bent position, and during the adjustment between the stable bent positions said piezoelement (7) outputs a piezoelectric voltage voltage (Up), and a resetting device (12) for mechanically adjusting the piezoelement (7) from the first stable bent position into the second stable bent position, wherein the resetting device (12) can be activated by means of a deformation which acts on the energy-generating device (14). This deformation can occur, in particular, in a deformed tyre area (11) of the vehicle tyre (1) above its tyre contact face (3). The piezoelement (7) is advantageously clamped at its end regions (8, 9) in receptacles (5a, b) and has two stable bent positions which are curved in opposite directions and have unstable intermediate states. In this context the resetting device (12) and the receptacles (5a, b) are preferably mounted in two housing regions (5, 6) which are adjustable in relation to one another.
摘要:
Disclosed is a method for the production of a component comprising a semiconductor carrier (1), wherein porous semiconductor material (3) is produced to form at least one thermally decoupled structure. According to the invention, a recess or several recesses (5) is/are etched in the porous material (3) in order to produce at least one thermally decoupled area (6) which is defined by said one recess or several recesses (5). The thermally decouplable structure is then formed on the at least one area. The invention also relates to a component produced according to said method.
摘要:
The invention relates to a microstructured thermosensor (5), especially an infrared sensor, which has a support body (12) and at least one thermoelement (20) which is located thereon. Said thermoelement (20) has a first material (13) and a second material (14) which together form at least one thermocontact (10, 11), at least at points. The invention also provides that the first and/or second material (13, 14) is configured in the form of a square-wave or wave-shaped strip conductor (15, 16), at least in areas, and that these are guided on the support body (12). The invention also relates to a microstructured thermosensor (5) comprising strip conductors (15, 16) which are preferably also structured in this way, the first material (13) being platinum or aluminum and the second material (14) being doped or non-doped poly-silicon-germanium
摘要:
The invention relates to a method for determining a change in contact surface of a tire, using a signal that corresponds to an acceleration and that can be associated with a rotation of the tire. The method comprises the following steps: acquiring at least one acceleration signal g1 that can be associated with the rotation of the tire; reading out a stored reference acquisition signal g0 that can be associated with the rotation of the tire; forming the difference between the acceleration signal g1 and the reference signal g0; and determining the change in contact surface of the tire using the formed difference of the acceleration signals.
摘要:
The invention relates to a bender transducer (1b) for generating electrical energy from mechanical deformations, said bender transducer comprising: a deformable support device (2b) on which a first connecting electrode (4b) and a second connecting electrode (5b) are configured, a piezoelectric element (3b) having at least one first electrode (17b) and a second electrode (18b) and being fastened to the support device (2b), the first connecting electrode (4b) being contacted with the first electrode (17b) of the piezoelectric element (3b) and the second connecting electrode (5b) with the second electrode (18b) of the piezoelectric element (3b). The first connecting electrode (4b) and/or the second connecting electrode (5b) is applied to the support device (2b) as a structured, conductive layer in at least some sections thereof. In particular, the two connecting electrodes (4b, 5b) can be configured as sections of a common layer. The invention further relates to a circuit module having a self-sufficient energy supply and a bender transducer of the above type.
摘要:
The invention relates to a method for determining the profile depth of a vehicle tyre, comprising at least one sensor disposed in or at the vehicle tyre, characterized in that the tyre profile depth is determined as a function of a tyre contact surface detected by the sensor.
摘要:
A method is proposed for operating a sensor on or in a vehicle tyre, in particular an acceleration sensor and in particular for detecting a tyre rotation period and/or a tyre contact period, wherein the sensor is operated with a first sampling rate in a first time interval of a rotation of a tyre, and with a second sampling rate in a second time interval of the rotation of the tyre.
摘要:
The invention relates to a micromechanical component comprising a substrate (10) and a covering layer (40) which is applied thereon. A porous material is provided under the covering layer (40) in an area (30; 30') which is mechanically supporting and thermally insulating. A heating device (70) is provided on the covering layer (40) for the heating thereof, above the area (30; 30'), and a detection device, (200, 200') for detecting electrical characteristics of a heated medium (150) disposed above said area (30; 30'), is arranged above the area (30; 30') on the covering layer (40).