37results about How to "Increase the oscillation amplitude" patented technology

A powered dispenser for dispensing individual sheet segments from a continuous roll of sheet material provided with spaced tear lines comprises a powered feed mechanism, a releasable, powered drive mechanism, a powered transfer mechanism, a pair of web sensing sensors, a capacitive sensing system providing automatic sensitivity adjustment, and control circuitry. A dual power supply system provides a mechanical lock-out functionality, and the control system is protected from electrostatic build-up on the surface of the feed roller. The web sensor, and an antenna plate of the capacitive sensing system, are provided on respective printed circuit boards mounted in overlying relation. Utilizing signals received from the pair of web sensors and the capacitive sensing system, the control circuitry senses the presence of a user to activate the powered drive mechanism, and prevents further dispensing of the sheet material until a previously dispensed segment is separated from the roll. The web sensors detection of a leading edge of the sheet material initiates a predetermined interval of sheet material advancement providing a proper placement of successive tear lines. Various approaches may be utilized to accommodate inadvertent sheet “tabbing” scenarios. The web sensors, together with the control circuitry, are also used to detect the depletion, or absence, of a working roll of sheet material, whereupon the control circuitry controls the powered transfer mechanism to automatically transfer the web feed supply from a depleted working roll to a reserve roll. The powered transfer mechanism may include a motor driven transfer bar, or provide motor driven release of a spring biased transfer bar. Another arrangement allows for ready release of a roll core, and drop of the same into an open dispenser cover for removal.

In a control device for controlling a variable element of a wheel suspension system, the variable suspension element associated with one of the wheels is controlled at least according to an output of a sensor associated with a different one of the wheels. The output of the sensor may include a sprung mass speed of a vehicle part associated with each wheel. The variable suspension element may include a variable damping force damper or a variable spring constant spring. Thereby, an undesired response of a vehicle body can be avoided even when a vehicle is subjected to an uneven distribution of wheel loads such as when the vehicle is traveling over a slanted road surface or making a turn.

There is described a method and an inking apparatus (50) for forming an ink pattern (80) on the surface of a form cylinder (15b) of a printing press, which ink pattern (80) exhibits, at least in part, a two-dimensional ink gradient extending in an axial direction and a circumferential direction on the surface of the form cylinder (15b). At least first and second chablon cylinders (20, 25) are placed one after the other along an inking path of the ink train (20, 25, 30, 31, 32, 33, 34, 35a, 35b, 36, 37) inking the form cylinder (15b) for distributing ink in the axial and circumferential directions and means (200, 201, 210, 211, 212, 250, 251, 260, 261, 262) are provided for subjecting the first and second chablon cylinders (20, 25) to cyclical oscillation movements in the axial direction and the circumferential direction.

A musical instrument soundboard including a resonant layer affixed to a base layer by a non-dampening acoustic coupling layer. The resonant layer can be sheets, plates, flakes, granules and powders formed of metal, crystal, glass, and ceramic. A protective layer is positioned atop the resonant layer. When formed into a musical instrument, the soundboard is highly resonant so as to provide the musical instrument with excellent tone.

The invention discloses an oscillator (300), comprising: a pair of transistors (301, 303), the sources (SOURCEA, SOURCEB) of which are connected to each other, and the drains (DRAINA, DRAINB) and the gates (GATEA, GATEB) are composed of A positive feedback loop including an oscillator tank circuit (309) is coupled. Wherein, the sources (SOURCEA, SOURCEB) of the transistors (301, 303) are connected to a current source (305) configured to control the physical parameters of the oscillator (300).

Methods are disclosed for detecting and lessening fuel starvation conditions in an operating fuel cell system. The fuel cell systems comprise a solid polymer electrolyte fuel cell with a regulating apparatus for regulating the pressure of fuel supplied to the anode inlet of the fuel cell, in which the outlet pressure from the regulating apparatus oscillates during operation. The methods involve monitoring an electrical output of the fuel cell during operation, determining the amplitude of oscillation in the electrical output, and then, if the determined amplitude of oscillation in the electrical output exceeds a predetermined amount thereby indicating a fuel starvation condition, taking a remedial action to lessen the fuel starvation condition.