摘要:
The invention is intended to provide a technique regarding sensor nodes for impact detection to enable the intensities of impacts to be determined in a multi-value or analog mode and to reduce the power consumption of sensor nodes. The sensor node is provided with a shock detection sensor comprising a piezoelectric element unit which generates an electric charge corresponding to an external impact, a capacitor which rectifies and accumulates the electric charge so generated, and a voltage detector which operates on the accumulated power and externally outputs a signal when the accumulated voltage reaches a preset level; a stand-by control object section which is caused by the external signal to return from a stand-by state and to operate; and a power supply which feeds power to the stand-by control object section, wherein the operation of the stand-by control object section is triggered by the signal of impact detected by the piezoelectric element unit.
摘要:
Unnecessary moment in a vibrator is remarkably reduced and the power generation efficiency in capacitance-type vibrational power generation is remarkably improved. A vibrator provided in a variable-capacitance type vibrator has a structure in that one ends of oscillation plates extending in a longitudinal direction thereof sandwiches a mass and the other ends thereof sandwiches a spacer, respectively, wherein the oscillation plates are arranged parallel to each other. A space portion between the oscillation plates and in which the mass and the spacer are not in contact with each other functions as a spring. By holding the mass by the two oscillation plates, the mass can be oscillated while it is in parallel to an opposing electrode. Therefore, generation of unnecessary moment in a direction other than an oscillation direction can be remarkably reduced.
摘要:
The present invention provides a synchronous semiconductor device suitable for improving the efficiency of application of electrical stresses to the device, an inspection system and an inspection method thereof in order to efficiently carrying out a burn-in stress test. A command latch circuit having an access command input will output a low-level pulse in synchronism with an external clock. The pulse will pass through a NAND gate of test mode sequence circuit and a common NAND gate to output a low-level internal precharge signal, which will reset a word line activating signal from the control circuit. Simultaneously, an internal precharge signal passing through the NAND gate will be delayed by an internal timer a predetermined period of time to output through the NAND gate a low-level internal active signal, which will set a word line activating signal from the control circuit.
摘要:
The present invention provides a synchronous semiconductor device suitable for improving the efficiency of application of electrical stresses to the device, an inspection system and an inspection method thereof in order to efficiently carrying out a burn-in stress test. A command latch circuit having an access command input will output a low-level pulse in synchronism with an external clock. The pulse will pass through a NAND gate of test mode sequence circuit and a common NAND gate to output a low-level internal precharge signal, which will reset a word line activating signal from the control circuit. Simultaneously, an internal precharge signal passing through the NAND gate will be delayed by an internal timer a predetermined period of time to output through the NAND gate a low-level internal active signal, which will set a word line activating signal from the control circuit.
摘要:
There is provided a generator generating power from vibration, capable of increasing a power generation voltage even if the vibration is small in amplitude to thereby enhance efficiency of power generation. A vibration power generator, provided with a mechanism for converting vibrational energy into electrical energy, comprises a switch for switching over whether or not power is outputted, and control of the switch is executed by periodic control thereof such that switchover occurs between respective time periods for outputting the power and respective time periods for not outputting the power at cycles not less than twice and not more than 100 times cycles of vibration. With the invention, efficiency of the generator can be enhanced, and it is possible to provide electronic equipment without power supply from outside, and capable of saving trouble of battery replacement.
摘要:
Raw materials, including a metal oxide and a carbonaceous material, are supplied into a rotary hearth furnace. Then, the raw materials are heated and reduced by burners, which are arranged to cause a strong stirring action for an atmosphere around the raw materials, in an early reducing period that is defined as a period during which 70-80% of a total amount of a flammable gas generated from the raw materials is generated. In a latter period subsequent to the early reducing period, the raw materials are heated and reduced by burners arranged to cause a weak stirring action for an atmosphere around the raw materials, whereby a metal is manufactured. With the present invention, productivity can be improved and the fuel consumption per unit product can be reduced.
摘要:
A double-sided image forming apparatus having first and second input devices respectively for entering function data for desired image formation functions and for entering the number of copies to be formed. A memory is provided to store the function data, and a storage compartment is provided to store sheets during duplex copying. An image forming device is arranged to operate in two procedures: a first procedure in which image formation is effected on the sheet's first side in accordance with first function data, and a second procedure in which image formation is effected on the other side in accordance with a second, different, function data. A controller controls the image forming device so that entry of number data and function data is permitted before the first procedure begins, but so that entry of only function data and not number data is permitted after completion of the first procedure. A detecting device is provided to detect the presence of sheets in the storage compartment, and the controller operates until sheets are no longer detected.
摘要:
The invention relates to a method and apparatus for forming images on both sides or surfaces of sheets corresponding to images on two-side originals.In a method for two-side image formation for forming images on both sides of sheets from images formed on two-side originals, a first-side image formation cycle is continuously performed for a required number of sets of sheets, the first-side image formation cycle including sequential operations for forming images on the first sides of the originals on the first sides of the sheets and for storing the one-side copied sheets in an intermediate storing portion, and thereafter a second-side image formation cycle is performed by sequentially forming images of the second sides of the originals on the second sides of the corresponding sheets. The invention also relates to an apparatus adopting this method.
摘要:
The invention is intended to provide a technique regarding sensor nodes for impact detection to enable the intensities of impacts to be determined in a multi-value or analog mode and to reduce the power consumption of sensor nodes. The sensor node is provided with a shock detection sensor comprising a piezoelectric element unit which generates an electric charge corresponding to an external impact, a capacitor which rectifies and accumulates the electric charge so generated, and a voltage detector which operates on the accumulated power and externally outputs a signal when the accumulated voltage reaches a preset level; a stand-by control object section which is caused by the external signal to return from a stand-by state and to operate; and a power supply which feeds power to the stand-by control object section, wherein the operation of the stand-by control object section is triggered by the signal of impact detected by the piezoelectric element unit.
摘要:
In order to ensure favorable sensitivity at the time of tilt driving and realize reduction in size, there is provided an optical pickup and a disc drive having therein an optical lens drive including a stationary block fixed to a moving base, a movable block operated in a focusing direction, a tracking direction and a tilting direction and for holding said objective lens, a supporting spring for connecting the stationary block and the movable block, a coil assembly having therein a focusing coil, tracking coils and tilt coils to be respectively energized when said movable block is operated in the focusing direction, the tracking direction, and the tilting direction connected together, and magnets constituting a magnetic circuit together with each of said coils, and the tilt coils are disposed at a position where at least a part thereof overlaps with the focusing coil in the focusing direction.