Abstract:
A diaphragm for use in a transducer, the diaphragm including a flexible layer configured to deflect in response to changes in a differential pressure. The flexible layer includes a lattice grid. The lattice grid includes a first plurality of substantially elongate openings oriented along an axis and a second plurality of substantially elongate openings extending generally parallel to the axis. The second plurality of openings is substantially offset from the first plurality of openings in a direction substantially parallel to the axis. The first plurality of openings and the second plurality of openings define a first plurality of spaced apart grid beams extending between and substantially parallel to the axis and a second plurality of spaced apart grid beams extending substantially perpendicular to the axis. The second plurality of grid beams is configured to connect adjacent ones of the first plurality of grid beams.
Abstract:
An integrated voice coil and cone assembly includes a cone assembly having a top diaphragm skin and a bottom diaphragm skin with a space between the top diaphragm skin and bottom diaphragm skin. The integrated voice coil and cone assembly also includes a voice coil configured to engage the cone assembly along a perimeter edge thereof, and an adhesive material placed between the top diaphragm skin and bottom diaphragm skin such that the adhesive material fills all of the space between the top and bottom diaphragm skins. The adhesive material also bonds the top diaphragm skin, bottom diaphragm skin, and voice coil into a single, integrated unit.
Abstract:
An acoustic liquid transfer system comprises: a processor; a source holding component configured to hold a source microplate; a destination holding component configured to hold a destination microplate; an acoustic transducer configured to cause liquid to transfer between the source and destination microplates; and a controller configured to direct movements, according to an ordered picklist, of one or more of the: source holding component, destination holding component, and acoustic transducer. The processor is configured to access an initial picklist of a plurality of source/destination pairs; obtain a current source/destination pair on the ordered picklist being created; calculate a plurality of movement metrics between the current source/destination pair and at least some of the plurality of source/destination pairs on the initial picklist but not yet on the ordered picklist; select a next source/destination pair with reference to the movement metrics; and add the next source/destination pair to the ordered picklist.
Abstract:
A speaker comprising a diaphragm shaped like a flat panel having external edges capable freely of vibrating at least in its thickness direction, and at least one driver unit mounted on one surface of the diaphragm and serving as a vibration source for giving vibrations to the diaphragm, wherein the driver unit that receives reproduction input signals causes the diaphragm to produce flexural vibrations, thus emitting sounds. The flexural vibrations of the diaphragm provide sound emission with a good frequency response, i.e., smaller change in sound level, over a wide range from low to high frequencies.