摘要:
An acceleration sensing device includes a rotational speed sensor which is mounted on a substrate and detects rotational speed, at least one oscillating structure with a deflectable seismic mass, and an acceleration sensor that detects linear acceleration and has at least one additional seismic mass which is suspended on flexible elements so that it can be deflected. The seismic masses of the two sensors are deflected independently of one another.
摘要:
A sensor node arrangement in a wireless network, includes a sensor to sense information, an RF transceiver to communicate the information to at least one element of the wireless network, and a coil to establish a secondary communications channel with a handheld device via inductive coupling, the secondary communications channel used, for example, to receive, during installation of the sensor node arrangement, a node identifier of the sensor node arrangement.
摘要:
A method for configuring a wireless network includes pointing a first end of a network configuration device at a wireless device and actuating the network configuration device to add the wireless device to the wireless network. The method may include positioning the first end in close proximity to the wireless device. A device is provided for configuring wireless networks that includes a transmitter configured to transmit at least one of an initiation signal and a connection table to a wireless device. The initiation signal is sent by the device to the wireless device to add or delete the wireless device from a network that is being configured. The connection table includes information about each wireless device that has previously been added to the network. A receiver is included in the device that is adapted to receive at least one of the connection table and a unique identifier from the wireless device. A memory is included in the device that is configured to store the connection table and electrically coupled to the transmitter and the receiver. The transmitter includes an infrared transmitter or a radio frequency transmitter and the receiver includes an infrared receiver or a radio frequency receiver. A system is provided that includes a pointing device including a connection table and a plurality of wireless network devices wirelessly couplable with the pointing device and with each other.
摘要:
A micromirror (5), a micro-oscillating mirror in particular, having an at least largely cantilevered mirror surface (10) which may be displaced from the rest position about at least one torsional axis (17) is described. The mirror surface (10) is linked to at least one support body (11, 12) by at least two torsion beams (13, 13′), which are arranged at least approximately parallel to each other. Also described is the displacement of the micrometer from its rest position by an electrostatic or magnetic interaction.
摘要:
The invention relates to a device for generating bias voltages for the electrodes of a rotation rate sensor. By evaluating a rotation rate signal and a quadrature signal, control signals are generated, using an adaptive quadrature compensator, that are converted by means of a bias voltage generating arrangement into bias voltages that are delivered to the electrodes of an electrode arrangement disposed underneath the seismic mass or masses of the rotation rate sensor. As a result, the sensor structure can be inclined in such a way that the quadrature signal occurring at the output is minimized. In accordance with a further feature of the invention, the bias voltages generated by the bias voltage generating arrangement are modified, as a function of the output signal of a bandwidth adjusting circuit, in such a way that the amplitude frequency response of the detection motion has a desired bandwidth.
摘要:
An integrated adjustable capacitor device and method for making such a device are provided. The adjustable capacitor includes an underlying electrode, a dielectric cavity, an upper electrode, and an etch cavity for removing sacrificial material from the dielectric cavity. The surface of the device is relatively flat due to epitaxal deposition of epi polysilicon and single crystal silicon. The adjustable capacitor system is capable of undergoing CMOS processes without requiring additional steps of covering the capacitor device to protect it and then removing the covering following the CMOS processes.
摘要:
An acceleration sensor, particularly a Coriolis rotation-rate sensor, having a swinging structure that is movably suspended on a substrate (base) and can be deflected due to an acceleration effect, the sensor further having an arrangement for generating a planar swinging movement of the swinging structure, particularly a rotational swinging movement, and an evaluating arrangement for detecting a deflection of the swinging structure that is stipulated by acceleration, particularly for detecting a Coriolis acceleration. The swinging structure (12) is rotatably suspended so as to perform a planar swinging movement, and should perform a planar, rotational swinging movement.
摘要:
A force sensor, especially an acceleration sensor or a pressure sensor, has a structure that vibrates in resonance, and its oscillation frequency is variable due to an acting force which is to be detected. The distance of an operating point of the force sensor from the point of its mechanical instability can be adjusted by applying an electric voltage.
摘要:
A method of protecting a micro-mechanical sensor structure embedded in a micro-mechanical sensor chip, in which the micro-mechanical sensor structure is fabricated with a protective membrane, the micro-mechanical sensor chip is arranged so that a surface of the protective membrane faces toward a second chip, and the micro-mechanical sensor chip is secured to the second chip.
摘要:
A method for configuring a wireless network includes pointing a first end of a network configuration device at a wireless device and actuating the network configuration device to add the wireless device to the wireless network. The method may include positioning the first end in close proximity to the wireless device. A device is provided for configuring wireless networks that includes a transmitter configured to transmit at least one of an initiation signal and a connection table to a wireless device. The initiation signal is sent by the device to the wireless device to add or delete the wireless device from a network that is being configured. The connection table includes information about each wireless device that has previously been added to the network. A receiver is included in the device that is adapted to receive at least one of the connection table and a unique identifier from the wireless device. A memory is included in the device that is configured to store the connection table and electrically coupled to the transmitter and the receiver. The transmitter includes an infrared transmitter or a radio frequency transmitter and the receiver includes an infrared receiver or a radio frequency receiver. A system is provided that includes a pointing device including a connection table and a plurality of wireless network devices wirelessly couplable with the pointing device and with each other.