摘要:
A piezoelectric device for an injector is built into an injector and generates driving force of the injector. A relation d(0.1Ec)/d(1.2Ec)≧0.50 is established between an apparent piezoelectric constant d(1.2Ec) calculated from static elongation when an electric field of 1.2Ec is applied to the piezoelectric device in the same direction as a polarizing direction while a preset load of 500 N is applied to the piezoelectric device, and an apparent piezoelectric constant d(0.1Ec) calculated from static elongation when an electric field of 0.1 Ec is applied to the piezoelectric device in the same direction as the polarizing direction. The piezoelectric device so fabricated has high durability and can be used for a long time.
摘要:
A series of processes is allocated to functional blocks arranged in electronic control units (ECUs) of a vehicle control system, and each functional block executes the process and outputs a signal. The first functional block receiving a value from a sensor outputs a signal including a check code of a starting state and a result of the process. Each of the other functional blocks produces a signal including a result of the process and a renewed check code based on a signal delivered by the preceding functional block. The last functional block outputs a signal to controls an actuator. A sequence check functional block of one ECU checks the deliveries of the signals designed to be performed in a predetermined order according to the renewed check code and performs error correction processing when the deliveries are performed out of the predetermined order.
摘要:
A maintenance/inspection support apparatus including an inspection information storage section storing inspection information of a plurality of equipments serving as maintenance/inspection targets, an inspection information write section for writing, in a noncontact manner, the inspection information stored in the inspection information storage section on a plurality of information recording media corresponding to the plurality of equipments, an inspection information read section for reading, in a noncontact manner, the inspection information written on the information recording media by the inspection information write section, and a display section for displaying the inspection information read by the inspection information read section.
摘要:
A piezoelectric element, for generating drive force for an injector, is provided with a plurality of alternately stacked piezoelectric layers expanding and contracting in accordance with application of voltage and internal electrode layers for supplying the applied voltage. The piezoelectric layers contain voids, but the total thickness in the stacking direction of the voids contained in any one piezoelectric layer is not more than ⅓ of the thickness in the stacking direction of the piezoelectric layer and the thickness in the stacking direction of each of the voids is not more than 50 &mgr;m.
摘要:
A motion vector difference detection stage 10 detects a difference D1 in motion vector between a current frame and a succeeding frame and a difference D2 in motion vector between a preceding frame and current frame. A latched circuit 50 outputs the motion vector S1 of the inputted current frame as a motion vector S2 in the case where both of the absolute values of the differences D1 and D2 does not exceed a preset value L1, and outputs the motion vector S1 of the frame preceding the corresponding frame as a motion vector S2 in the case where at least one of the absolute values of the differences D1 and D2 exceeds the preset value L1. The latched circuit 50 outputs a motion vector of 0 as a motion vector S2 in the case where both of the absolute values of the differences D1 and D2 exceed the preset value L1 and also the absolute value of the sum of the differences D1 and D2 exceeds the preset value L1. When a change in motion vector is small, the motion vector of the corresponding frame carries out dynamic image correction. When a change in motion vector is large, the small motion vector of the preceding frame or the motion vector of 0 carries out dynamic image correction.
摘要:
A ceramic heater that may be used in an oxygen sensor for automotive air-fuel ratio control systems and includes a ceramic square rod formed with a laminate of a heater substrate on which a heater-patterned layer consisting of a heater element and leads is formed and a covering substrate covering the heater-patterned layer. Metallic terminals are connected electrically to the leads of the heater-patterned layer, respectively, and mounted on surfaces of the ceramic square rod opposed to each other in a direction of lamination of the heater substrate and the covering substrate, respectively. At least one outer lead is joined to one of the metallic terminals through a bonding layer.
摘要:
In a display device in which each group of plural drive elements takes charge of the drive of plural picture elements (pixels) and the display luminance changes as the number of sustaining pulses changes that are supplied to a plasma display panel, a constant emission luminance characteristic is maintained by increasing the number of sustaining pulses for a larger load when the display load factor is large, and decreasing the number of sustaining pulses for a smaller load when the display load factor is small. When displaying a multi-tone image by a subfield drive method, a display area detect circuit allows the display of an image with constant luminance characteristic despite the variation of the display load factor, and prevents the deterioration of tone characteristic due to the subfield drive method, and further, a half tone display circuit allows the decrease of the bit number thereby simplifying the configuration of the display area detect circuit.
摘要:
In order to provide a hot-dip aluminized steel sheet with increased peeling resistance of the coating layer, the thickness of the Fe--Al--Si alloy-layer is set to be 1-5 .mu.m, while the maximum differential unevenness of thickness of the Fe--Al--Si alloy layer is set to be 0.5-5 .mu.m. The hot-dip aluminized steel sheet is manufactured by controlling an elapsed time from the beginning of immersion of the basemetal steel sheet into the aluminizing bath to the completion of solidification of the coating-metal layer which has passed through the bath. In addition another elapsed time is controlled from the time after the base-metal steel sheet has been guided out over the bath to the completion of solidification of the coating-metal layer.
摘要:
An oxygen sensor element has a cup-type solid electrolyte body defining an air chamber therein, and a plate-like lamination-type ceramic heater is disposed in the air chamber with a front end portion contacting the bottom portion of the air chamber. Accordingly, the lamination type ceramic heater is prevented form being swung and hit against the electrolyte body.
摘要:
A process for producing 2-methyl-1,4-benzoquinone at a high conversion, a high selectivity and at a low cost by oxidizing m-cresol with oxygen at a low partial pressure in the presence of at least one copper (I) halide catalyst and a mixed solvent of ketone and acetonitrile. The 2-methyl-1,4-benzoquinone is useful as an intermediate compound to produce vitamin K.