Vibration systems and systems including vibration systems for filling incomplete components with slurry material are disclosed. The vibration systems may include a vibration platform, and a component retention plate releasably coupled to the vibration platform. The component retention plate may include a plurality of component holders positioned on the component retention plate. Each of the plurality of component holders may receive a distinct, incomplete component in a predetermined orientation. The vibration systems may also include a motor operatively coupled to the vibration platform to vibrate the vibration platform at a predetermined frequency. The predetermined frequency may be based on characteristic(s) of each of the incomplete components.

A vibration device for generating various vibration signatures or characteristics is provided. This various vibration signatures or characteristics allow a single vibration device to be used to test and replicate failures in a subject device across a broad range of vibration signatures or characteristics transferring to the subject device. The vibration devices includes a pair of spaced-apart plates, each defining a slot therein. An adjustable fastener connects the upper and lower plates and extends through the upper and lower elongated slots. A vibrator is fastened to the upper plate via the upper elongated slot. To enable the vibration signatures or characteristics to be varied, the fastener is adjustable in a vertical direction to alter the distance between the lower plate and the upper plate, and is adjustable in a horizontal direction along the upper and lower slots. The motor can also translate along the upper elongated slot.

According to an example aspect of the present invention, there is provided an apparatus comprising a volume for receiving a gas sample; and an ultrasonic transducer; wherein the ultrasonic transducer is caused to generate a standing wave to the volume, said standing wave comprising at least one particle trapping zone for trapping particles carried by the gas sample, and to release particles trapped to the at least particle trapping zone by decreasing power of the standing wave to at least one lower power level and/or switching off the standing wave.

According to an example aspect of the present invention, there is provided an apparatus comprising a volume for receiving a gas sample; and an ultrasonic transducer; wherein the ultrasonic transducer is caused to generate a standing wave to the volume, said standing wave comprising at least one particle trapping zone for trapping particles carried by the gas sample, and to release particles trapped to the at least particle trapping zone by decreasing power of the standing wave to at least one lower power level and/or switching off the standing wave.

A haptic actuator may include first and second bodies movable along an arcuate path of travel. The haptic actuator may also include a biasing member coupled between the first and second bodies. At least one electrical coil may be configured to move the first and second bodies to produce a haptic effect.

A haptic actuator may include first and second bodies movable along an arcuate path of travel. The haptic actuator may also include a biasing member coupled between the first and second bodies. At least one electrical coil may be configured to move the first and second bodies to produce a haptic effect.

A haptic actuator may include first and second bodies movable along an arcuate path of travel. The haptic actuator may also include a biasing member coupled between the first and second bodies. At least one electrical coil may be configured to move the first and second bodies to produce a haptic effect.

A method and apparatus for generating a haptic signal is described. An audio signal is received and an event signal comprising a plurality of pulses is determined from a characteristic of the audio signal. A haptic output signal is generated by combining a haptic pattern triggered by a first pulse and at least one further substantially identical haptic pattern triggered by at least one further pulse.

A method and apparatus for generating a haptic signal is described. An audio signal is received and an event signal comprising a plurality of pulses is determined from a characteristic of the audio signal. A haptic output signal is generated by combining a haptic pattern triggered by a first pulse and at least one further substantially identical haptic pattern triggered by at least one further pulse.

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.