An ultrasonic sensor includes a piezoelectric body including first and second surfaces. First and second electrodes are respectively provided on the first and second surfaces. The second electrode is opposed to the first electrode with the piezoelectric body interposed therebetween. A third electrode is provided on the second surface. The third electrode is spaced apart from the second electrode. The third electrode is electrically connected to the first electrode. When viewed from a thickness direction in which the first surface and the second surface are arranged, the second electrode extends to both end edges of the second surface in a first direction and is spaced apart from both end edges of the second surface in a second direction orthogonal to the first direction.

An electronic device includes a substrate layer having a front surface and a back surface opposite the front surface, a plurality of ultrasonic transducers formed on the front surface of the substrate layer, wherein the plurality of ultrasonic transducers generate backward waves during operation, the backward waves propagating through the substrate layer, and a plurality of substrate structures formed within the back surface of the substrate layer, the plurality of substrate structures configured to modify the backward waves during the operation.

An electronic device includes a substrate layer having a front surface and a back surface opposite the front surface, a plurality of ultrasonic transducers formed on the front surface of the substrate layer, wherein the plurality of ultrasonic transducers generate backward waves during operation, the backward waves propagating through the substrate layer, and a plurality of substrate structures formed within the back surface of the substrate layer, the plurality of substrate structures configured to modify the backward waves during the operation.

A multisensory system provides both temporal and spatial coverage capacities for auto-detection of bird collision events. The system includes an apparatus having a first circuitry to capture and store a series of images or video of a blade of a wind turbine; and a memory to store the images from the first circuitry. The apparatus also has one or more sensors to continuously sense vibration of the blade or for acoustic recordings; and a second circuitry to analyze the sensor data stream and/or the series of images or video to identify a cause of the vibration and to trigger the camera(s). A communication interface transmits data from the second circuitry to another device, wherein the second circuitry applies artificial intelligence or machine learning to control sensitivity of the one or more sensors.

A control device (30) includes a detection unit (303), a specifying unit (304), and a phase offset control unit (307). The detection unit (303) detects a contact position on a display (10) provided with a plurality of drive units that performs tactile presentation. The specifying unit (304) specifies, based on the contact position detected by the detection unit (303), a target phase offset, which is a phase offset being an acquisition target of a plurality of drive signals each of which drives each of the plurality of drive units (21 and 22). The phase offset control unit (307) adjusts the phase offset of the plurality of drive signals so as to obtain the target phase offset specified by the specifying unit (304).

In at least one embodiment, a sound and vibration sensor is provided. The sound and vibration sensor includes a housing, a piezo-diaphragm, and a flexible support plate. The piezo-diaphragm is positioned in the housing to detect an input signal including audio or vibrations. The flexible support plate receives the piezo-diaphragm to enable the sensor to exhibit a frequency response with a plurality of resonant frequencies in response to detecting the audio or the vibrations on the input signal.

An alarm device for an MRI system may include a body, an operating member, a generator, a power manager and a signal emitter. The operating member may be movably connected to the body. The generator may be connected to the operating member and can convert kinetic energy of motion of the operating member to electrical energy. The power manager may be connected to the generator and can convert electrical energy generated by the generator to an output current. The signal emitter may be connected to the power manager and can use energy obtained from the output current to send a trigger signal wirelessly. Advantageously, the alarm device does not need an external power supply and has a high level of reliability.

An alarm device for an MRI system may include a body, an operating member, a generator, a power manager and a signal emitter. The operating member may be movably connected to the body. The generator may be connected to the operating member and can convert kinetic energy of motion of the operating member to electrical energy. The power manager may be connected to the generator and can convert electrical energy generated by the generator to an output current. The signal emitter may be connected to the power manager and can use energy obtained from the output current to send a trigger signal wirelessly. Advantageously, the alarm device does not need an external power supply and has a high level of reliability.

Each conductor of a plurality of insulated conductors of a wiring harness extends between, and electrically connects, a corresponding terminal of a first electrical connector to either a corresponding terminal of an electrical connector jack of a plurality of electrical jacks located along the wiring harness, or to a corresponding terminal of a corresponding auscultatory sound-or-vibration sensor of the plurality of auscultatory sound-or-vibration sensors. The plurality of insulated conductors are organized in a plurality of distinct branches, each distinct branch originating either from the first electrical connector or from another portion of the wiring harness, and the locations of the plurality of distinct branches, in cooperation with the plurality of electrical jacks, if present, are implicitly suggestive of a corresponding location of the corresponding auscultatory sound-or-vibration sensor on a thorax of a test subject.

Each conductor of a plurality of insulated conductors of a wiring harness extends between, and electrically connects, a corresponding terminal of a first electrical connector to either a corresponding terminal of an electrical connector jack of a plurality of electrical jacks located along the wiring harness, or to a corresponding terminal of a corresponding auscultatory sound-or-vibration sensor of the plurality of auscultatory sound-or-vibration sensors. The plurality of insulated conductors are organized in a plurality of distinct branches, each distinct branch originating either from the first electrical connector or from another portion of the wiring harness, and the locations of the plurality of distinct branches, in cooperation with the plurality of electrical jacks, if present, are implicitly suggestive of a corresponding location of the corresponding auscultatory sound-or-vibration sensor on a thorax of a test subject.