摘要:
A stacked piezoelectric device and a method of fabrication thereof includes a piezoelectric stack having a first side electrode and a second side electrode, piezoelectric layers and internal electrode layers. The piezoelectric layers and internal electrode layers have substantially the same area. The internal electrode layers have ends thereof exposed to one side of the stack. The first side electrode includes first insulative portions formed at the ends of alternate ones of the internal electrode layers and a first conductive portion formed over the first insulative portions. The second side electrode is similarly configured to form insulative portions at the other ends. The first and second insulative portions are formed of an insulative resin, while the first and second conductive portions are formed of a conductive resin. The first and second conductive portions are also formed to directly cover the ends of the internal electrode layers.
摘要:
A display device which displays a multilevel gradation image by dividing a frame into a plurality of subfields in respect of time and by allowing the subfields corresponding to the luminance levels of the input image signals to emit light, comprising a motion vector detection unit 10 which detects the motion vector which expresses the motion of a block from one frame to the next, a high speed dynamic image correction unit 14 and a law speed dynamic image correction unit 16 which correct the input image signal by dynamic image correcting means which are suitable for the respective cases when the value of the detected motion vector is larger than a preset value S and when it is smaller than the preset value S and output the corrected input image signal, and a switching unit 18 which elects either the output signal of the high speed dynamic image correction unit 14 or the output signal of the law speed dynamic image correction unit 16 to output the selected signal to the display in accordance with whether or not the value of the detected motion vector is larger than the preset value S. As a result, both the high speed dynamic image part and the low speed dynamic image part of the image can be optimally corrected.
摘要:
A check-out device includes a scanner for reading an article code fixed to an article, an entry conveyor for conveying the article after reading the article code, a weigh scale for measuring weight of an article on the entry conveyor to produce measured weight data, a RAM for storing article data of various articles, each article data including an article code and reference weight data, and a processing unit for obtaining from the RAM the reference weight data of the article corresponding to the article code, comparing the obtained reference weight data of an article with the measurement weight data of the same article, and performing a sales processing for the article whose article code is read by the scanner after confirming that the article whose article code is read is the article as is on the conveyor.
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:
The root shape of a flash formed in the friction-welded joint is controlled by introducing an upset delay time interposed between termination of the friction step and commencement of the upset step and by controlling the upset displacement speed. This provides a friction-welded joint having a tensile strength and a fatigue strength which are comparable with those of TIG- or MIG- welded joints and enables aluminum alloy hollow members to be produced by friction welding instead of TIG or MIG welding. Typically, the upset delay time is 0.4 to 0.8 sec and the upset displacement speed is 5.0 to 70.0 mn/sec to form a flash having a flash root radius of 0.5 mm or more and a flash root angle of 75.degree. or less.
摘要:
In a method of manufacturing a bearing, a high-frequency hardened steel essentially containing the following elements in the following percentage by weight is employed as the material of at least one of the outer and inner races of the bearing which is drilled,C; 0.5 to 0.65%, Si; 0.07 to 0.15%,Mn; 0.05 to 0.35%, Cr; 0.25 to 0.55%, andB; 0.0035% or less,a workpiece 10 Hv 230 in maximum hardness is formed with the high-frequency hardened steel subjected to hot forging, a part of the workpiece where a hole 12 is to be formed is drilled, and a part of the workpiece 10 where a track 14 is formed is subjected to high-frequency hardening until it becomes at least Hv 653 in hardness. The workpiece formed with the steel material subjected to hot forging is not larger than Hv 230 in maximum hardness. Hence, the workpiece can be drilled without reduction of the service life of the drilling tool, and the track region of the bearing has a hardness value which is practical in use.
摘要:
There is a splicer bed 1 having a leader support 3 arranged on the top thereof. One opening 6 is provided in one end of the leader support 3. A knife mounting base 7 is arranged to project from the opening 6 and provided at one end with a cartridge holder 8. The knife mounting base 7 also has a leader positioning head 10 provided on the other end thereof for determining the position of a leader L. A stationary knife 11 is mounted to the leader positioning head 10. A movable knife 12 is mounted for pivotal movement to the stationary knife 11. A film holddown plate 17 is pivotably mounted to the knife mounting base 7. The knife mounting base 7 is also provided with a pair of punches 28 which are arranged slidable and can be lowered by the film holddown plate 17. In action, before the leading portion of a film F drawn out from a film cartridge P loaded in the cartridge holder 8 is held under the film holddown plate 17, the downward movement of the film holddown plate 17 causes the punches 28 to cut two notches in both side edges of the film F. The leading portion of the film F is trimmed by the downward action of the movable knife 12 and then joined by a strip of splicing tape to the leader L placed on the leader support 3.
摘要:
An SOHC-type valve operating system in an internal combustion engine having a single cam shaft commonly provided for a pair of intake valves and a pair of exhaust valves. A plurality of intake valve driving members are rockably disposed between the cam shaft and the pair of intake valves and have an operative-connection switchover mechanism for switching over the connection and disconnection of the intake valve driving members. A pair of exhaust valve driving members are rockably disposed between the cam shaft and the pair of exhaust valves and independently operate each of the exhaust valves. The operative-connection switchover mechanism includes a switchover pin movable between a position for operatively connecting adjacent intake valve driving members and a position for releasing such connection, which pin is slidably mounted in a cylindrical sleeve secured to the intake valve driving members for guiding the movement of the switchover pin. The cylindrical sleeve also rotatably supports a cylindrical rotor in rolling contact with a cam provided on the cam shaft. The operative-connection switchover mechanism is disposed on the opposite side of the intake valves with respect to the rocking axis of the intake valve driving member whereby space for disposing a component such as an ignition plug is available on the intake side of the engine.
摘要:
An epoxy resin composition is provided for encapsulating a semiconductor. The resin composition contains an epoxy resin, a phenol resin, a phenol-modified silicon-containing compound and an inorganic filler. The phenol-modified silicon-containing compound is obtained by reacting a first and/or second organic silicone compound (formulae (1-a), (1-b) and (2)) with an organic silicon compound (formula (3)) and with a phenol resin: ##STR1## wherein X stands for an organic group containing an epoxy group, Y for a polyoxyalkylene group and Z for a mercapto group, an amino group or a ureido group.
摘要:
A power source apparatus includes first equalizing circuits to control remaining charge capacity variation among a plurality of battery units, and second equalizing circuits to control remaining charge capacity variation among all the series-connected battery packs that make up each battery unit. A first equalizing circuit connects each battery unit with an output line OL through a first series circuit made up of a first limiting resistor and first equalizing switch. Remaining charge capacity variation is equalized among all the battery units by the first equalizing circuits, and remaining charge capacity variation between battery packs in each battery unit is controlled by the second equalizing circuits.