Boco IP Oy Ab

Presented is a pod propulsion unit 1 comprising a housing (2), a support arm (3), a propeller shaft (5) that is rotatable supported within the housing by means of at least a first bearing arrangement (6) having a first bearing housing (7), first fastening means (11) for fastening the first bearing housing (7) to the housing (2). The first bearing housing (7) and the housing (2) are spaced apart from one another by means of a first electrical insulation arrangement (13) arranged between the first bearing housing (7) and the housing (2) and configured to electrically insulate the first bearing housing (7) from the housing (2). The first electrical insulation arrangement (13) comprising first ceramic insulators (42), and the first ceramic insulators (42) contacting the first bearing housing (7) and the housing (2) so as to space apart the first bearing housing (7) and the housing (2) from one another.

The disclosure describes an arrangement comprising a spring-supported tiltable hermetic housing structure with an optical window and single-axis scanning mirror inside the housing structure. The arrangement enables the use of the resonance scanning mode of the mirror in vacuum, inside the housing structure, as well as the quasistatic scanning mode of the mirror by oscillating the housing structure in ambient pressure.

An accelerometer which comprises a first, second, third and fourth measurement cell. Each of the first, second, third and fourth measurement cells comprises a mass element which is mobile in the y-direction and first and second fixed structures. The mass element forms a differential capacitor with the first and second fixed structures. Each of the first, second, third and fourth measurement cells comprises a central line, and the first and second fixed structures are on opposite sides of the central line in each of the first, second, third and fourth measurement cells. The placement of the first and second capacitors with respect to the central line in the first and third measurement cells is the same. The placement of the first and second capacitors with respect to the central line in the second and fourth measurement cells is the same. The placement of the first and second capacitors with respect to the central line in the first measurement cell is opposite to the placement of the first and second capacitors with respect to the central line in the second measurement cell.

The disclosure relates to a MEMS device with in-plane moving structures and translation beams to move a rotating structure out-of-plane, wherein the arrangement of the translation beams contributes to the out-of-plane rotation of the rotating structure. An advantage of the arrangement of the disclosure is that out-of-plane movement to the large tilt angles is achieved with lower voltage in comparison to two-layer tilting structures.

A Lissajous frequency-modulated microelectromechanical gyroscope where a control unit is configured transmit drive signals to one or more drive transducers to drive one or more mass elements in a first and a second oscillation mode. The control unit is configured to continuously transmit a first crosstalk compensation signal to the one or more mass elements and to set the amplitude of the first crosstalk compensation signal to a value which is proportional to an amplitude difference in a frequency spectrum obtained from a sense signal retrieved from the one or more mass elements.

Disclosed are a method for transmission waveform design for an orthogonal time frequency space (OTFS)-based integrated sensing and communication (ISAC) system, and sensing technology. A sensing method for an OTFS-based ISAC system may include generating a time-frequency domain sample including a delay pilot and a Doppler pilot each that is designed in the time-frequency domain based on data to be transmitted; generating an integrated sensing and communication (ISAC) signal through an orthogonal frequency division multiplexing (OFDM) modulation technique for the generated time-frequency domain sample; and acquiring a sensing parameter through a reflected signal received from a sensing target as the generated ISAC signal is transmitted.

The disclosure relates to a circuitry and a method for extracting a digitized DC voltage value representing a magnitude of a discrete-time signal received from a discrete-time system. A first full-wave rectifier performs a full-wave rectification of the discrete-time signal to obtain a full-wave rectified signal, and an oversampling analog-to-digital converter digitizes the full-wave rectified signal to obtain a bitstream. The oversampling ADC comprises a second-order or higher order delta-sigma modulator and a filter. The filter is configured to filter the bitstream to extract the digitized DC voltage value.

A microelectromechanical device comprising with a device layer and first and second comb structures. The bottom of the first comb structure has a z-coordinate which is greater than both the z-coordinate of the bottom face of the device layer and the z-coordinate of the bottom of the second comb structure. The top of the second comb structure has a z-coordinate which is smaller than both the z-coordinate of the top face of the device layer and the z-coordinate of the top of the first comb structure. The device layer also comprises a cavity which extends from the bottom face of the device layer to the bottom of the second comb structure.

A MEMS mirror device comprising a reflector, a support structure and a first suspension structure, the first suspension structure allows the reflector to rotate about a rotation axis. Stiffening springs extend from the support structure to the reflector. Each stiffening spring comprises one or more folds in the support plane.

The disclosure relates to a MEMS gyroscope comprising a moving structure, a first stator, and a second stator to which a supplementary voltage signal is applied. The moving structure and the first stator form a first capacitor, and the moving structure and the second stator form a second capacitor. The moving structure is configured to move so that a capacitance of the first capacitor increases when a capacitance of the second capacitor decreases. The advantage of this arrangement is that the undesired AC current component induced by the driving signal is reduced without adding a second noisy drive electrode to the gyroscope.