摘要:
A liquid dispensing apparatus is provided which makes it possible to correctly and easily detect a dispensing operation judgment failure with high accuracy without particularly using a complicated detection mechanism or means. The liquid dispensing apparatus includes a nozzle which sucks a solution in a cassette and dispenses the sucked solution into another cassette; and a cassette holder which holds the another cassette, and the nozzle is used as a first electrode and the cassette holder as a second electrode. Further, the liquid dispensing apparatus has measurement means for measuring a capacitance between the first and second electrodes during a solution dispensing operation.
摘要:
A method forms ball recirculation and rolling grooves at an inner circumferential surface of a nut for ball screw use in a state free of deviation in axial, circumferential, and radial nut directions. A flange end face is formed with a concave part, then an inner circumferential surface of a blank and an end face and outer circumferential surface of the flange are continuously ground. Due to this, the coaxiality of the blank inner circumferential surface and the flange outer circumferential surface, and the perpendicularity of the flange end face to the blank inner circumferential surface, are made smaller. The blank is plastically worked to form the ball recirculation groove and is cut to form the ball rolling groove while using the concave part as a phase reference, the end face as an axial direction reference, and the outer circumferential surface as a radial direction reference.
摘要:
A method forms a concave constituting a ball return passage directly on an inner circumferential surface of a nut blank by plastic working without damaging a die. Letter S shaped concaves are formed on an inner circumferential surface of a nut blank, by pressing by use of a die having a blank holder, a cam driver, cam sliders, and a cylindrical member. The cam driver has inclined surfaces having the same angle of inclination as the cam sliders. The cam sliders have letter S shaped convexes corresponding to the letter S shaped concaves, and are held by through holes, respectively. When the cam driver is pressed from the top thereof, the cam sliders move outwardly in the radial direction, respectively, and the letter S shaped convexes push the inner circumferential surface of the nut blank for plastic deformation.
摘要:
A bandwidth variable communication method is provided that enables effective use of frequency bandwidths in which the bit rate is constant in every optical path. The bandwidth variable communication method includes, when a network management apparatus sets or changes an optical path that passes through plural communication apparatuses, measuring or obtaining an optical signal quality deterioration amount in a route of the optical path; selecting a modulation format in which a spectrum bandwidth is the narrowest from among modulation formats by which transmission is available on conditions of the optical signal quality deterioration amount and a desired bit rate B (bit/s); and exchanging control information between the network management apparatus and a control unit of each communication apparatus on the optical path route. A bandwidth variable communication apparatus receives the control information, and changes a passband based on the received control information.
摘要:
Disclosed is a stator which can be made compact and can produce high output, and also disclosed is a method for manufacturing the stator. A stator comprises a split stator core provided with teeth portions and slots, and a double coil formed of a flat type conductor, wherein the split stator core has a first block of six slots of U, V and W phases and a second adjoining block, the flat type conductor in the first slot of U phase forms a first loop coil together with the flat type conductor in the second slot of U phase, the flat type conductor in the second slot of U phase forms a second loop coil together with the flat type conductor in the first slot of U phase, and the second loop coil is arranged on the inner circumference of the first loop coil.
摘要:
The invention provides a friction joining structure comprising steel products, a friction joining steel plate inserted there between, and a fastening device, which are mutually friction joined by a compressive force derived from the fastening device. A portion of projected streaks on the friction joining steel plate is designed to have a Vickers hardness at least 3 times greater than the surface of the steel products, which allows the projected streaks to more easily enter the steel products thereby increasing the friction coefficient between the steel products. The friction joining structure is constituted by a slip resistance mechanism which can be easily validated from a theoretical or an experimental point of view and is also small in variance of the friction coefficient. Therefore, a friction coefficient used in design can be set at a high value with high accuracy to realize a rational design.
摘要:
A flat conductor wire in a U-phase first slot of a first group block and a flat conductor wire in a U-phase second slot of a second group block form an outer circumference base unit. A flat conductor wire in a U-phase second slot of the first group block and a flat conductor wire in the U-phase first slot of the second group block form an inner circumference base unit. The inner circumference base unit is located inside the outer circumference base unit. A coil end portion at one end of the inner circumference base unit and a coil end portion side at one end of the outer circumference base unit are bent toward the rotor side with respect to an in-slot conductor portion in the stator core. The coil end portion side at one end of the inner circumference base unit and the coil end portion side at one end of the outer circumference base unit are located further toward the axis of the rotor than an inner peripheral surface of the stator core.
摘要:
A cage coil includes a first combined conductor constituted of six first conductors each being formed in a continuous zig-zag pattern, the first conductors being overlapped sequentially with displacement, and a second combined conductor including six second conductors each being formed in a continuous zig-zag pattern, the second conductors being overlapped sequentially with displacement, and the second combined conductor being placed with displacement of one pitch from the first combined conductor, the first and second combined conductors are overlapped into a conductor assembly, the conductor assembly being wound by five turns. A stator includes the above cage coil.
摘要:
There is provided a coating material for a honeycomb structure, the coating material including inorganic particles or organic particles having D90/D10 of 5 to 50 with D10 of 50 μm or less and D90 of 4 μm or more (wherein D10 and D90 are values of 10% diameter and 90% diameter, respectively, in volume-based integrated fraction of a particle diameter distribution measured by a laser diffraction/scattering method from the smaller particle diameter side).