The invention refers to an infrasound generator for enhancing the combustion of solid fuels burning in a combustion chamber. The infrasound is generated by one or more set(-s) of each two vibrating plates, vibrating in the same direction with the same displacement amplitude but in antiphase. The infrasound generator does not cause vibrations and is not sensitive to ash and heat from the combustion.

Microelectromechanical (MEMS) devices and associated methods are disclosed. Piezoelectric MEMS transducers (PMUTs) suitable for integration with complementary metal oxide semiconductor (CMOS) integrated circuit (IC), as well as PMUT arrays having high fill factor for fingerprint sensing, are described.

The invention relates to a seat arranged for enhanced sound perception via vibration including a padding and a sound reproduction assembly (20), which includes at least one vibration source (26), at least one elastic element (16, 21) and at least one frame structure (18, 22), which sound reproduction assembly is at least partially arranged inside the padding. The elastic element/-s (16, 21) are nonhomogenous element/-s and located in contact with the frame structure (18, 22) and the vibration source (26) and configured to provide elastically and mechanically tuned mounting and that the elastic element/-s are configured to create at least lateral vibration to the surface of the seat.

A system for removing debris from a vision-based sensor of an agricultural machine includes an agricultural machine and a vision-based sensor supported on the agricultural machine. The vision-based sensor is configured to generate vision data. The system further includes a vibration source configured to be a separate component frons the vision-based sensor. The vibration source is supported on the agricultural machine. Moreover, the vibration source is configured to oscillate the vision-based sensor to remove debris from the vision-based sensor.

In a method of segmented image acquisition at a sensor, a plurality of segments of an image are concurrently captured, wherein pixels of each segment of the plurality of segments are captured according to a pixel capture sequence. The pixel capture sequence for at least one segment of the plurality of segments is a non-progressive sequence for controlling a timing difference between pixel capture for proximate pixels of adjacent segments. The image including the plurality of segments is generated.

A vibration signal generation apparatus includes an absolute value signal generator configured to generate an absolute value signal by detecting an absolute value of amplitude of an acoustic signal, an envelope signal generator configured to generate an envelope signal by detecting an envelope of the absolute value signal, a differentiator configured to differentiate the envelope signal, an amplitude limiter configured to generate an amplitude-limited signal by limiting amplitude of the envelope signal so that an amplitude value of the differentiated envelope signal becomes zero or greater, and a vibration signal generator configured to generate a vibration signal by multiplying the amplitude-limited signal by a reference signal having a frequency that allows a human to perceive a vibration.

A system and a method are disclosed for applying a vibration to a container comprising a content, said container held by an end effector attached to a mechatronic manipulator, the system comprising a vibration generator operatively coupled to at least one of the end effector and the mechatronic manipulator at an operating distance from the container such that when said vibration generator is in operation, said vibration generator causes said container to vibrate accordingly and a controller operatively connected to the vibration generator, the controller for generating and providing a controlling signal to the vibration generator.

A piezoelectric sensor, a manufacturing method thereof and an electronic device are provided. The piezoelectric sensor includes a substrate, an active layer, the active layer being disposed at a side of the substrate: a first electrode, the first electrode being disposed at a side of the active laver a wav from the substrate, and the first electrode including a plurality of sub-electrodes disposed at intervals: a piezoelectric layer, the piezoelectric layer being disposed at a side of the first electrode away from the active layer; and a second electrode, the second electrode being disposed at a side of the piezoelectric layer away from the first electrode. The active layer is configured to be capable of switching between an insulating state and a conducting state, and in the conducting state the active layer is capable of conducting the plurality of sub-electrodes.

A vibro-acoustic assembly and related systems and methods for applying a wide range of audio frequencies in one or multiple channels to living beings for wellbeing. The assembly is ergonomic, compact, portable and configured to address physically any area of a user's body while being flexible and easy to use to deliver a wide degree of frequencies/identified targeted programs from a source audio device, such as a smart phone application via wireless transmission.

In one inventive concept, a method for etching an optic includes obtaining a microemulsion, where the microemulsion includes a continuous oil phase, a surfactant system comprising at least one surfactant, and water, submerging at least a portion of the optic in the microemulsion, and agitating by ultrasonication the microemulsion for etching the optic submerged therein.