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 includes a sensing portion having a weight supported by beams, the weight being a movable portion, and a weight stopper that limits a movable range of the weight, the weight stopper being arranged in a vicinity of the weight with a given clearance and being a part of a substrate for the inertial sensor processed with MEMS techniques.
摘要:
The present invention provides the stress detection method for force sensor device with multiple axis sensor device and force sensor device employing this method, whose installation angle is arbitrary. The stress detection method includes, first and second force sensors whose detection axes are orthogonal to each other. When the detection axis of first force sensor forms angle θ with direction of detected stress Ax, and the stress component of direction perpendicular to direction of the detected stress Ax is Az, output Apx of the axis direction of first force sensor is found as Apx=αx (Ax×cos θ+Az×sin θ), and output Apz of the axis direction of the second force sensor is found as Apz=αz (Ax×sin θ+Az×cos θ), and, when αx and αz are detection sensitivity coefficients of first and second force sensors respectively, the detection sensitivity coefficient αz of second force sensor is set as αz=αx tan θ, and the detected stress Ax is found as Ax=(Apx−Apz)/αx(cos θ−tan θ×sin θ).
摘要:
A signal cut-off device 4 includes an optical fiber which has a clad 42 on the outer periphery of a core 41, and first and second variation sections of a refractive index, 41a and 41b in which the period of a grating varies gradually along an optical axis are serially formed in the longitudinal direction of the core 41. An optical connector which is detachably connected to the predetermined place of an optical transmission line includes a housing which has a plug-styled portion at a front end part and a jack-styled portion at a rear end part, and a ferrule which is mounted in the plug-styled portion. The signal cut-off device 4 is installed in the hole of the ferrule. An optical fiber coupler includes a coupler body which multiplexes/demultiplexes an uplink signal (1260-1360 nm) and a downlink signal (1480-1580 nm), a COM port which is provided on the input side of the coupler body, and a 1.55 port and a 1.3 port which are provided on the output side of the coupler body. A second connector is mounted on the end part of an optical fiber constituting the COM port, a PD is mounted on the end part of an optical fiber constituting the 1.55 port, and an LD is mounted on the end part of an optical fiber constituting the 1.3 port.
摘要:
A modular plug which is fitted in a modular jack so as to connect twisted pair wires is provided. The modular plug comprises a housing, a guide plate which is fitted in the housing so as to separate the twisted pair wires from one another, and terminals and which are connected to electric wires untwisted from the tips of the twisted pair wires, wherein the separated twisted pair wires are held between the internal surfaces of the housing and the guide plate, thereby reducing near end crosstalk and keeping an attenuation thereof within a predetermined range.
摘要:
In an acceleration sensor including a vibrator subject to a sliding vibration and a weight section connected to the vibrator and supported at a position different from the position of the center of gravity of an assembly of the vibrator and weight section, for detecting an angular moment about the support point, which is produced at the weight section by application of acceleration, as sliding vibration with the vibrator, the acceleration sensor includes a rectangular substrate having a plurality of electrodes electrically connected to the vibrator, a formation pattern of the plurality of electrodes is symmetrical about an axis parallel to at least one side of the substrate, and the plurality of electrodes have substantially equal thickness. Since the formation pattern of the electrodes on the substrate is symmetrical and the respective electrodes have substantially equal thickness, the vibrator that is bonded to this substrate does not incline and the detection sensitivity does not vary.
摘要:
An acceleration sensor includes a piezoelectric single-plate having a weight part and a detection part. The piezoelectric single-plate is, for example, an X-cut plate of LiNbO3.
摘要:
A wireless hub, connected to the USB bus of a computer, and a wireless port, connected to a USB interface of a peripheral device, are provided, and wireless communication is performed between the two. The wireless hub performs communication with the computer by converting a USB packet routed to a device into a wireless signal, and a wireless signal received from a device into a USB packet. The wireless port attached to each device also converts a wireless signal into a USB packet and vice versa. While it is normal for a plurality of wireless ports to be connected to a single wireless hub, an arrangement of one wireless hub and a corresponding single wireless port is also possible. A wireless hub and a wireless port each have a device identifier assigned to them, and in the USB-wireless conversion, a non-specific destination identified by a USB address and bus topology is converted into a device identifier. Inter-host communication is enabled by using the device identifier.
摘要:
An input object selector of a finger touch type that can, without any problem, be installed in a small space, such as an information terminal watch, and that provides a satisfactorily efficient process for selecting input objects.
摘要:
A process and apparatus is provided for automatically and continuously producing a mass of moldings. A continuous molding is manufactured by injecting a solid solution in order of precedence into a plurality of molds circulating in a line along an endless track and by solidifying the injected solution. The solution is preferably vinyl chloride resin or another synthetic resin. After the solution solidifies the mold is automatically removed from the molding. The continuous molding consists of a number of moldings open at the bottoms and connected end to end by a top plate, molded at the same time.