摘要:
A waveguide type optical branching device having: two input ports; two output ports; optical waveguides extending from the input ports and the output ports respectively; and a coupling portion formed allowing the optical waveguides from the input ports and the output ports to gradually approach each other in a direction toward the output ports. The device is operable such that, in a direction from the input ports to an output end of the coupling portion, when light is inputted to one input port of the two input ports, an even more is predominantly excited, and when light is inputted to the other input port of the two input ports, an odd mode is predominantly excited. The optical waveguides in the coupling portion have a core width that is larger at a middle position in a height direction thereof than at an upper surface of the core.
摘要:
An angular velocity sensor is provided that includes a frame, an oscillator and torsion bars that connect the oscillator to the frame. The frame, the oscillator and the torsion bar are formed integral with each other by etching a material substrate in the thickness direction of the substrate. The oscillator, configured in the form of an H, includes a support, two first arms and two second arms. These arms extend from the support in an arm-extending direction perpendicular to the thickness direction of the substrate. The oscillator includes a mounting surface that is provided with a piezoelectric driver for generating in-plane oscillation of the oscillator, and with a piezoelectric detector for detecting out-of-plane oscillation of the oscillator.
摘要:
The present invention provides a disinfectant and/or bactericidal aqueous composition containing an olanexidine acid addition salt, and at least one polyoxyethylene-based nonionic surfactant selected from the group consisting of polyoxyethylene higher alkyl ethers and polyoxyethylene alkylphenyl ethers; a disinfectant and/or bactericidal aqueous composition containing an olanexidine acid addition salt at a concentration of 0.05 to 0.5 W/V %, and an alcohol at a concentration of 20 to 80 W/V %, and not containing any surfactants; and a disinfectant and/or bactericidal aqueous composition containing an olanexidine acid addition salt, and at least one member selected from the group consisting of ester-based nonionic surfactants and cyclic oligosaccharides.
摘要:
A receiving device is provided. A pulse width is measured, it is selected whether a determination process is performed for a pulse width having the length of one bit in accordance with the measured value of the pulse width or a pulse width having the length of ½ bit, it is discriminated whether a current pulse edge is a pulse edge at the center of the bit or a pulse edge at the boundary between bits while considering the bit data right before the determined bit, and when it is determined that the current pulse edge is the pulse edge at the center of the bit, the bit data is determined by the rising edge or the falling edge of the pulse edge.
摘要:
An angular velocity sensor includes a vibrator sensing an angular velocity, and a package on which the vibrator is mounted. The vibrator is arranged in a diagonal direction of the package. The angular velocity sensor includes a circuit board that supports the package. The vibrator is attached to the circuit board so that the vibrator is inclined to a vertical direction by a given angle.
摘要:
Gateway service provider 20 acquires and stores personal data of user 10 and device data of devices owned by user 10 when home gateway 11 is registered. Then, gateway service provider 20 sends such information or services based on the information to customer company 40A and in return receives payment from customer company 40A. As a result, customer company 40A can provide articles, contents and services to user 10.
摘要:
This magnetic recording medium is characterized in that in the magnetic recording medium having a magnetic layer on a non-magnetic substrate by intercalating at least an under layer, the proportion of functional groups per 100 carbon atoms in a diamond-like carbon protective layer mainly composed of carbon for protecting the magnetic layer exceeds 20%. The bonding force between the protective layer and the lubricating layer of the magnetic recording medium is increased so that under high speed rotation, a decrease in the lubricating layer is not caused so as to provide a magnetic recording apparatus having high reliability.
摘要:
An inertial sensor such as an acceleration sensor or gyro can have superior impact resistance by regulating displacement of a weight portion in the direction of an upper limit. The sensor includes a sensor portion that has a fixing part, a weight portion the height of which is a predetermined size shorter than that of the fixing part, and a beam portion that links the weight portion and the fixing part; a plate-like first stopper portion that covers the weight portion and is bonded to the fixing part with clearance of a predetermined size from the weight portion; and a flat, plate-like second stopper portion that is connected to the fixing part via a bump of a predetermined height on the side opposite the first stopper portion.
摘要:
A structure with superior shock resistance is proposed for a parasol-type acceleration sensor. The acceleration sensor comprises a support portion the lower end of which is fixed to a substrate; a beam portion on which a detection element for applying changes to an output signal in correspondence with strain caused by acceleration acting on the detection element is formed, one end of the beam portion being connected to the top part of the support portion; a suspended weight connected to the other end of the beam portion; and a stopper substrate with a window portion through which, in order to guide an output signal of the detection element via a pad that is formed on the upper end face of the support portion, a conductor lead that is connected to the pad passes. Overswing of the weight is limited by means of the stopper substrate.
摘要:
An inertial sensor comprising a sensing portion having a weight hung by beams extending from a frame, the weight being a movable portion. The beams include distortion portions partially arranged therein, and the distortion portions are arranged to avoid edges on which stresses applied to the beams are concentrated. Roots of the beams are not formed at right angle in connecting to the weights or the frame. The roots of the beams have wider angles. It is thus possible to dissipate areas on which stresses are concentrated and improve the impact resistance without sacrificing the sensor sensitivity. Both high sensor sensitivity and the impact resistance are obtainable in accordance with the present invention.