摘要:
Each track on a recording medium 1 is divided into a plurality of sectors, each of which comprises a head positioning information area and a data area. Signals read out of the recording medium 1 undergo wave shaping by a low-pass filter 4 and a differentiating circuit 5. An index pulse generator 8 generates an index pulse indicating the reference position of each track on the basis of an index hole detected by a detector 7. A control circuit 20, on the basis of the index pulse, generates a control signal for distinguishing the head positioning information area and the data area from each other. The low-pass filter 4 and the differentiating circuit 5, each in accordance with a control signal, switch between their two frequency characteristics.
摘要:
An apparatus for controlling quad-line stunt kites of a type having a pair of handles with lines connected to each end of each handle. This is essentially all the control that is used during the normal kite flying procedure, but when it is desired to bring the kite line in or to let the line out, pick-up and/or pay-out structures are used in conjunction with the control handles. Specifically this pick-up and pay-out structure includes a first rod which extends through a pair of openings in the top of each of the control handles respectively and has a crank portion on one end thereof. A second rod extends through a pair of aligned openings in the lower portion of each of the control handles respectively. An axle, which is adapted to be rotated about an axis, is attached to one end of the first and the second rod and a tubular member is adapted to slide over the axle so that a person can grasp the tubular member in one hand and the crank in the other hand to rotate both rods and both handles about the axis. A guide rod structure with four partial loops therein is attached to the tube and is adapted to receive one of the lines in each one of the respective partial loops so that during the aformentioned rotation of the handles and rods, the four lines will be wound evenly onto or off of the first and second rods.
摘要:
A motor driving apparatus includes a motor, a signal generating device for generating a Pulse Width Modulation binary signal, a control device for applying a current to the motor, a current detecting device for detecting the current applied to the motor, and a current blocking device for blocking the current applied to the motor for a predetermined time when the current applied to the motor exceeds a predetermined value. The current blocking device is synchronized at an alternative cycle of the binary signal, whereby it is possible to limit the current applied to the motor during the overload of the motor.
摘要:
In a floating type web conveying device, an air jetting box comprises an air jetting surface in which lines of air jetting holes are formed in such a manner that the lines are extended in the widthwise direction of the web and the sum of the areas of the air jetting holes range from 1% to 3% of the area of the air jetting surface, so that the web is substantially free from the difficulty that it is brought into the contact with the air jetting box.
摘要:
A motor driven power steering apparatus includes a steering mechanism having a torque detector for detecting torque applied to the mechanism through a steering wheel. An electric motor is connected to the steering mechanism through an electromagnetic clutch. The current in the electric motor is monitored and if it becomes excessive, a control circuit is activated to deactivate the clutch. The electric motor is disconnected from the steering mechanism at the time the engine of the vehicle is starting and at other times during operation of the vehicle to determine if excess current flows through the motor which would be indicative of a malfunction of the electric motor.
摘要:
A highly reliable vacuum heat insulating material having excellent workability, usability, and heat insulating performance, and a heat insulation box using the vacuum heat insulating material are provided. A vacuum heat insulating material includes: a first fiber assembly made by aligning a plurality of sheet-shaped fiber assemblies, which are continuous in a length direction, so as to be next to each other in a width direction; a second fiber assembly provided so as to overlap the first fiber assembly and made by aligning a plurality of sheet-shaped fiber assemblies, which are continuous in the length direction, so as to be next to each other in the width direction; and a core material formed in a flat plate shape by winding up the first fiber assembly and the second fiber assembly continuously from inside toward outside while being displaced by a predetermined amount Xb in the width direction.
摘要:
A method of manufacturing a semiconductor device according to the invention includes the step S1 of cleaning the silicon carbide substrate 1 surface, the step S2 of bringing a material gas into a plasma and irradiating the atoms contained in the material gas to silicon carbide substrate 1 for growing silicon nitride film 2 on silicon carbide substrate 1, the step S3 of depositing silicon oxide film 3 on silicon nitride film 2 by the ECR plasma CVD method, and the step S4 of annealing silicon carbide substrate 1 including silicon nitride film 2 and silicon oxide film 3 formed thereon in a nitrogen atmosphere. By the method of manufacturing a semiconductor device according to the invention, a semiconductor device that exhibits excellent interface properties including an interface state density and a flat band voltage is obtained.
摘要:
A method for manufacturing a vacuum heat insulating material includes: a collecting step for extruding heat-deposited resin in a continuous state from a plurality of aligned nozzles and collecting on a conveyer as a plurality of organic fibers; a reeling step for feeding the conveyer at a predetermined speed, and producing an organic fiber assembly in a reeled sheet state by applying pressure with a roller and applying heat-deposition; a core material processing step for making a core material having a predetermined size by cutting an end face of the organic fiber assembly produced by the reeling step; a decompressing step for inserting the core material into an outer cover material from an insertion opening and decompressing an inside to an almost vacuum; and an outer cover material sealing step for sealing the insertion opening of the outer cover material the inside of which is decompressed to the almost vacuum.
摘要:
In an acoustic sheet which can be used as a head material of a percussion instrument or a head material for a sound box of a string instrument, a plurality of change regions having a crystalline orientation different from a base are dispersed into the base made of a synthetic resin sheet having a uniform crystalline orientation. The acoustic sheet can include a delamination which is formed by delaminating the synthetic resin sheet in a thickness direction.
摘要:
An acoustic resonance device is installed in a compartment of a vehicle so as to reduce a low-frequency sound pressure (or noise) dependent upon a natural vibration. Specifically, an acoustic resonance device is a panel/diaphragm resonator, a resonance pipe, or a Helmholtz resonator, the inner space of which communicates with the compartment via an opening. The acoustic resonance device is positioned in proximity to an antinode of sound pressure owing to a natural vibration occurring in a driver/passenger space inside the compartment. Alternatively, the acoustic resonance device increases a particle velocity at a specific natural frequency or decreases sound pressure at an excitation frequency which occurs due to an external condition of the vehicle. The acoustic resonance device can be installed in a roof, a seat, a pillar supporting the roof, or a door of a vehicle.