摘要:
A miniature camera lens actuation apparatus provides an auto-macro function in which a camera lens element has two focus positions. In one type of apparatus, a shape memory alloy actuator arranged to drive movement of the camera lens element relative to a support structure against an end-stop arranged to limit the movement. The shape memory alloy actuator is connected to one of the movable element and the support structure by a compliant connector. This limits the stresses on the shape memory alloy actuator and therefore increases its lifetime. In another type of apparatus, the suspension system supporting the movable element on the support structure provides the movable element with two stable positions along the movement direction.
摘要:
A miniature camera lens actuation apparatus provides an auto-macro function in which a camera lens element has two focus positions. In one type of apparatus, a shape memory alloy actuator arranged to drive movement of the camera lens element relative to a support structure against an end-stop arranged to limit the movement. The shape memory alloy actuator is connected to one of the movable element and the support structure by a compliant connector. This limits the stresses on the shape memory alloy actuator and therefore increases its lifetime. In another type of apparatus, the suspension system supporting the movable element on the support structure provides the movable element with two stable positions along the movement direction.
摘要:
A loudspeaker comprises a region devoid of electroacoustic transducers and at least two groups of electroacoustic transducers at the periphery of the region. Each of the groups is configured to produce a different sound field representative of an audio signal and each of the groups comprise a different set of transducers. This allows a more compact loudspeaker to be provided because the transducers can be located around the periphery of a visual display screen. Sound quality is not compromised because groups of transducers forming a subset of the totality of transducers are used for each sound signal, thereby avoiding alias beams.
摘要:
A lead frame having thereon a plurality of semiconductor devices is prepared by immersing it in a flux solution to activate the lead frame surface and to remove oxide film. The lead frame is then transferred to a coating block unit, and the lead frame is moved along a lateral passage which extend through the coating block unit. During movement through the passage, the lead sections of the lead frame are coated on both upper and lower surfaces thereof with liquid solder which ascends by capillary action along a slit which projects upwardly from a liquid solder bath and communicates with the passage. The solder in the slit, where it communicates with the passage, is continually replenish by capillary action from the bath as the solder coats the lead sections as the lead frame moves through the passage.
摘要:
The fuel cell system of the present invention comprises: an electric motor, a fuel cell stack, a fuel supply unit, and a controller that controls a power-plant including the fuel cell stack and the fuel supply unit. The controller comprises further: a stack output-response request computing unit to compute a stack output-response request requested for the fuel cell stack; a stack voltage setup unit during idle-stop to set up a lower limit of stack setup-voltage during idle-stop that is set up as a stack voltage during execution of idle-stop so as to be higher as the stack output-response request is larger, and so as to be lower as the request is smaller; and an operation unit of recovering a stack voltage during idle-stop to execute a recovery operation when an actual stack voltage becomes, during execution of idle-stop, lower than the lower limit of stack setup-voltage during idle-stop.
摘要:
A fuel cell system (1) of the present invention includes a fuel cell stack (10) including plural single fuel cells (11) stacked on each other, each single fuel cell being supplied with hydrogen gas and air to an anode electrode (14) and a cathode electrode (13), respectively, to generate electricity. The system (1) further includes a voltage applying device (C9) that applies voltage to the fuel cell stack (10) after oxygen present in the cathode electrode (13) is reduced. The system (1) further includes a cross-leakage diagnosis device (C12) that diagnoses, based on voltage of the single fuel cells (11) when the voltage applying device (C9) applies the voltage to the fuel cell stack (10), whether hydrogen gas in the anode electrode (13) is cross-leaked to the cathode electrode (14) in each single fuel cell (11).
摘要:
An ice blasting apparatus comprises: an ice making device operating a cutting blade to shave off ice freezing on an inner wall of the freezing casing and continuously discharges the shaved ice as flake-shaped ice pellets; an ice mixing tank mixing the ice pellets and water and maintaining the resulting ice slurry at a predetermined concentration with a concentration sensor; and a blast gun blasting the ice slurry. A trimming method is performed on a film insert molding with a film material adhering to a face of a resin molding and extending beyond a periphery edge of the resin molding. A blast gun facing the face with the film adhering to it blasts ice slurry of a required concentration toward the vicinity of the periphery edge of the resin molding to remove the unnecessary portion of the film material extending beyond the periphery edge of the resin molding.
摘要:
An automatic equalizer comprises a transversal filter connected to receive an input signal such as a television signal in which a predetermined periodic reference signal is present and having variable tap gains, and a correlator for forming the correlation between the input and output signals of the transversal filter and correcting the tap gains of the transversal filter to cancel out distortion components such as ghost component contained in the input signal. For the purpose of preventing the slow convergence and fluctuation of tap gains of the transversal filter due to non-periodic noise components contained in the input signal, a circuit is further provided to integrate a predetermined portion of the waveform of the reference signal contained in the input signal. An output signal of the waveform integrator circuit is correlated with the output signal of the transversal filter by the correlator.
摘要:
The fuel cell system of the present invention comprises: an electric motor, a fuel cell stack, a fuel supply unit, and a controller that controls a power-plant including the fuel cell stack and the fuel supply unit. The controller comprises further: a stack output-response request computing unit to compute a stack output-response request requested for the fuel cell stack; a stack voltage setup unit during idle-stop to set up a lower limit of stack setup-voltage during idle-stop that is set up as a stack voltage during execution of idle-stop so as to be higher as the stack output-response request is larger, and so as to be lower as the request is smaller; and an operation unit of recovering a stack voltage during idle-stop to execute a recovery operation when an actual stack voltage becomes, during execution of idle-stop, lower than the lower limit of stack setup-voltage during idle-stop.
摘要:
In a fuel cell system which executes a stop process of stopping an output from a fuel cell when a required power generation amount for the fuel cell is smaller than a predetermined power generation amount and supplies oxidant during a stop process period, fuel gas is intermittently supplied to a fuel electrode at a basic supply interval, which is set in advance and at which carbon dioxide is not generated in an oxidant electrode, during the stop process period.