摘要:
An optical fiber fusion splicer includes a discharge unit for producing an electric discharge to fusion splice optical fibers and a pressure sensor for producing a pressure detection signal representing the surrounding atmospheric pressure. In response to the pressure detection signal the discharge is controlled by a control unit so that a substantially optimum discharge current for the fusion splicing is provided to the discharge unit. The discharge control unit includes an adjusting unit for producing a discharge current adjusting signal, a control signal generating unit for generating a control signal on the basis of both the pressure detection signal and the discharge current adjusting signal, and a discharge current control unit for controlling the discharge current in response to the control signal.
摘要:
A torque detecting apparatus comprises an annular bobbinless sensor coil disposed on a rotatable shaft, and a position adjustable, non-ferromagnetic metal core member disposed adjacent the sensor coil. When the shaft is twisted, the core member moves in a hollow space defined by the sensor coil to thereby change inductance thereof in accordance with angular displacement between the sensor coil and the core member. A detecting part is disposed in opposition to a solenoid coil wound on the shaft with a gap therebetween for detecting the angular displacement in terms of a change in an oscillation frequency. A sensor set is constituted by the sensor coil and the metal core. A pair of sensor sets may be disposed, wherein one sensor set is so connected that inductance of the associated sensor coil is decreased while the other sensor set is so connected that inductance of the associated sensor coil is increased. Difference or ratio between the two oscillation frequencies may be inputted to a resonance circuit.
摘要:
An electronic musical instrument capable of effecting vibratos with any of tones which may be produced by pressing down the keys of a keyboard. A key constant memory stores key constants each being assigned to a different tone, while a vibrato constant memory stores vibrato constants each being assigned to a different tone. The keyboard is provided with an exclusive switch for effecting vibratos. When this exclusive switch is pressed, a counter which counts clock pulses feeds its output to an adder/subtractor in the form of an addition/subtraction switchover signal and an addition/subtraction execution control signal. In response, the adder/subtractor periodically and alternately performs addition and subtraction with the key constant and vibrato constant associated with a key being pressed down.
摘要:
A printing wire comprises a wire main body made of a sintered super hard alloy containing a hard alloy powder, whose major constituent is carbide powder, and a binder phase comprising at least one element selected from the group consisting of nickel and cobalt; and an alloy layer formed on the entire surface of the wire main body, which contains nickel as a major constituent and has nickel phosphide or nickel boride precipitated therein, or an alloy layer which contains cobalt as a major constituent and has cobalt phosphide or cobalt boride precipitated therein.
摘要:
A numerical controller for a machining center comprising a microprocessor connected to a data input device, a CRT display device and a data storage device. The microprocessor prepares an NC program for a workpiece to be machined, based upon machining information manually input by the use of the data input device and stored in the data storage device. The debugging of the prepared NC program is then executed, wherein the microprocessor obtains by calculation a workpiece interference space defined outwardly from the outer periphery of the workpiece, based upon workpiece blank shape and dimension data and workpiece mounting position data stored in the data storage device. The microprocessor further calculates, based upon the NC program, a tool path along which a tool spindle of the machining center would be moved relative to a work table in accordance with the NC program. The microprocessor ascertains based upon the tool path, a tool interference space, defined outwardly from the outer periphery of each tool, and the workpiece interference space, whether or not the tool interference space would enter the workpiece interference space in any rapid feed movement if relative movement between the tool spindle and the work table were effected in accordance with the NC program. When detecting the entry of the tool interference space into the workpiece interference space, the microprocessor displays on the CRT screen a message informing an operator of the occurrence of an interference.
摘要:
An image transcribing system for transferring an image from an original document to a recording sheet in which the original image is scanned, converted to binary signals and stored in a first page memory. An image processing section transfers the image data from the first page memory to a second page memory while it is simultaneously enlarged by a predetermined factor. In the enlargement process, the image data is first enlarged by an integer factor then reduced by a fractional factor in accordance with stored bit patterns corresponding to the required fractional factor.
摘要:
A leaf-type clock driven by a intermittent and segmental rotation by using so called Geneva-gear mechanism to cause turning-over of the time- and minute-indicating leaves is disclosed. This leaf-type clock has the advantages that number of the leaves may be reduced, and that the time accuracy is improved, and further that small-sized clock can be designed.
摘要:
A negative lower gasket has a rib disposed along the outer periphery of a flat portion having a base of a negative current collector disposed thereat. The height of the rib is set to be more than a thickness of the negative lower gasket. The rib may be disposed only at a portion corresponding to a position where legs project from the base of the negative current collector at the outer periphery of the flat portion.
摘要:
According to one embodiment, an ink-jet head includes a piezoelectric member which forms an ink pressure chamber, an electrode disposed on a side surface of the piezoelectric member, a nozzle plate attached to the piezoelectric member and including a nozzle hole communicating with the ink pressure chamber, a surface of the nozzle plate including a top surface of the nozzle plate, and a protection film which covers the surface of the nozzle plate, a peripheral portion of an adhesion part between the piezoelectric member and the nozzle plate, and the electrode. A recess is formed in a part of the protection film covering the top surface of the nozzle plate. The part of the protection film corresponds to a peripheral area of the nozzle hole.
摘要:
A floor spacer for a vehicle constituted of an expanded resin molded article which can simultaneously satisfy sound absorbing performance while satisfying desired compression strength and reduction in weight is provided. A floor spacer A for a vehicle is constituted of a floor spacer main body 10 constituted of an expanded resin molded article having flat plate portions 12a and 12b to be on an inner side of a compartment, and a plurality of ridges 13a and 13b vertically provided at back surfaces of the flat plate portions 12a and 12b on a floor frame side, and a layer constituted of a sound absorbing material 20 formed to fill spaces 14a and 14b formed between the aforesaid ridges 13a and 13b. Through-holes 15 may be formed in the flat plate portions 12a and 12b of the floor spacer main body 10, and fastening holes 16 which a part of the sound absorbing material 20 enters may be formed in the ridges 13a and 13b.