摘要:
A linear oscillating actuator gives a smooth reciprocatory movement with a minimum of incidental vibrations or stresses. The actuator includes an oscillator carrying a permanent magnet as well as an output shaft which is adapted to be connected to drive a load, and a stator assembly carrying an electromagnet. The electromagnet generates a magnetic field which interacts with the permanent magnet to reciprocate the oscillator relative to the stator assembly in a linear path. A spring link is provided to resiliently support the oscillator to the stator assembly with a gap distance left therebetween for allowing the oscillator to reciprocate in the linear path. The spring link is configured to deform resiliently also in a direction other than along the linear path so as to allow the oscillator to move to and away from the stator assembly or to twist relative to the stator assembly. Thus, the spring link can absorb incidental stresses or displacements from which the oscillator may suffer in the directions other than along the linear path, assuring to give a smooth reciprocatory movement to the oscillator with a minimum of fatigue accumulated in the spring link.
摘要:
A reciprocating linear actuator capable of reciprocatingly driving a plurality of movable elements (2 and 2) by a single stator (1). The movable elements (2 and 2) are connected to each other through a connection body (3) having a spring characteristic to be capable of displacement in the reciprocating direction of the movable element. The connection body (3) has such a shape that can be drawn with a single stroke on a two dimensional plane, and at least both ends thereof are connected to the movable elements (2 and 2), respectively. Since the connection body (3) is made of a flat spring, it requires less space for installation as compared to a connection body formed of a coiled spring. Further, since the entire connection body has an effective spring characteristic, a relatively smaller size is required for the connection body to provide a required spring characteristic. The less installation space for the connection body (3) is advantageous to a reduction in size of the linear actuator.
摘要:
A hemadynamometer has an air bag designed for attaining oppression or ischemia of radial artery only without oppressing ulnar artery, with a length of the bag made, when the bag is wound on a user's wrist on its radial side starting from such hard organization area as tendons on palm side of the wrist through the radial artery, to reach at least styloid process of radius but not to reach the ulnar artery, and with a width set for locally oppressing the radial artery at least substantially right above the styloid process of radius in longitudinal direction of the wrist.
摘要:
There is disclosed a video camera which has a normal moving image sensing mode, and a still image sensing mode for sensing an image on a negative film set in a film adapter attached as a still image. An optical image of a subject is photoelectrically converted into an image signal, and whether or not the subject is a negative film is detected on the basis of a predetermined signal component in the image signal. If it is detected that the subject is the negative film, the still image sensing mode starts while setting signal processing in a negative/positive conversion mode and setting the focal length of the lens system at the wide-angle position.
摘要:
A method of manufacturing a thin film diode incorporated in a liquid crystal display, comprising a lower electrode connected with a signal electrode, an anodic oxidation film formed on the surface of the lower electrode, and an upper electrode formed so as to overlie the lower electrode via the anodic oxidation film and connected with a pixel electrode. The thin film diode is fabricated by forming a lower electrode material film on a substrate, forming the lower electrode and the signal electrode by means of etching the lower electrode material film, forming the anodic oxidation film on the surface of the lower electrode by means of the anodic oxidation treatment applied thereto, forming an upper electrode material film composed of a transparent and electrically conductive film on the entire surface of the substrate after a heat treatment applied in a vacuum, and forming the upper electrode and the pixel electrode by means of etching the upper electrode material film using a photoresist as an etching mask, after applying another heat treatment in a vacuum.
摘要:
To provide a nondestructive inspection apparatus with a reduced distance between a superconducting magnetic sensor and an object under inspection, a cryostat for cooling the sensor to a superconducting state is provided with inner and outer vessels. The inner vessel has a baseplate on which the magnetic sensor is disposed, and has an inner wall defining a central chamber for containing a refrigerant for cooling the magnetic sensor. The outer vessel has an inner wall defining a central chamber for containing the inner vessel, the magnetic sensor and the stage. A gap between the inner and outer vessels is evacuated to insulate the inner chamber from the ambient atmosphere. To facilitate ease of transferring an object to and from the stage for inspection, a load lock area is provided adjoining the outer vessel. The load lock has a movable inner wall portion opening to the inner chamber of the outer vessel and a movable outer wall portion opening to the ambient atmosphere so as to permit the transfer of an object to be inspected to and from the stage.
摘要:
An apparatus for detecting a fine magnetic field comprises a DC SQUID which detects and converts a magnetic field to an electrical signal. A flux locked looped circuit drives the DC SQUID. The flux locked loop circuit includes an amplifier for amplifying the electrical signal. A phase detector modulates the amplified electrical signal and an integration circuit outputs a voltage signal corresponding to the detected magnetic field. An oscillator coupled to the phase detector supplies a demodulation frequency signal. A modulator including a first voltage-to-current converter and a second voltage-to-current converter is coupled with the integration circuit and the oscillator for supplying a modulation signal to the DC SQUID. The modulator further includes an external input terminal and a feedback modulation change-over circuit for changing an internal feedback signal to an external test signal inputted to the external input terminal. A bias source having a third voltage-to-current converter is coupled to the DC SQUID and supplies a bias signal. The bias source also includes an external input terminal and a change-over circuit for changing an internal bias signal to an external test signal inputted to the second external input terminal. An external output terminal is connected to the amplifier for supplying a monitoring test output signal from the DC SQUID. The apparatus for detecting a fine magnetic field thus provides a self-testing function for the DC SQUID.
摘要:
A chemical vapor deposition apparatus has a reactor divided into a reaction space and a purging space by a susceptor for supporting a wafer and a loading chamber communicated through a gate with the reactor. Exhaust units are communicated with the reactor and loading chamber, respectively, so that the pressures in the reactor and loading chamber may be reduced. The susceptor has a plurality of recesses to aid placing or scooping the water. Through a transparent wall on the side of the purging space, the susceptor is heated by a lamp unit disposed outside the transparent wall. The loading chamber includes a wafer transport mechanism for charging a wafer into the reactor or discharging a processed wafer from the reactor. An unprocessed wafer is loaded to the loading chamber from a cassette and the processed wafer is unloaded to the cassette. One or a small number of wafers are processed at one time. A uniform film is deposited with a high reproducibility. The processing rate is high and the chemical vapor deposition apparatus is made compact in size.
摘要:
An image reading device includes a plurality of image reading units arranged at different positions in a width direction perpendicular to a conveyance direction of a recording medium to read an image on the recording medium at image reading positions and a conveyance roller pair that conveys the recording medium to the plurality of image reading units. The conveyance roller pair includes a drive roller and a driven roller that contacts the drive roller and rotates following the drive roller. The plurality of image reading units includes an upstream and a downstream image reading units downstream from the upstream image reading unit in the conveyance direction. A reading interval between the image reading positions and a diameter of the drive roller satisfy the relation: X2=n1×π×D1a, where X2 represents the reading interval, n1 represents an integer, and D1a represents the diameter of the drive roller.
摘要:
A conveyance device includes a conveyance roller pair to convey a recording medium to an image reading position of an image reading unit. The conveyance roller pair includes a drive roller and a driven roller. The driven roller contacts the drive roller and rotates following the drive roller. The drive roller has a diameter satisfying a relation in which a detection mark on the recording medium is on a position away from a leading end of the recording medium by an integral multiple of a circumference of the drive roller in a conveyance direction of the recording medium.