摘要:
A reference voltage generating circuit that accurately corrects temperature characteristics of a BGR (bandgap reference) circuit and a regulator. A voltage dividing circuit outputs first and second voltages obtained by dividing a BGR voltage. The regulator includes a differential amplifier, first and second resisters coupled in series between the output terminal of the differential amplifier and the ground. The positive input terminal of the differential amplifier receives the BGR voltage, and the negative input terminal is coupled to a coupled node between third and fourth resistors. The BGR circuit outputs a third voltage varying with a temperature determined by a predetermined amount of current flowing in the BGR circuit and a predetermined resistor. A temperature-characteristics correcting circuit controls a correcting current flowing through the coupled node so that its magnitude varies with the difference between the first and third voltages, and the difference between the second and third voltages.
摘要:
A gas-turbine inlet-air cooling system includes: a spray device configured to spray cooling water into inlet air entered into a compressor of a gas turbine facility to thereby cool the inlet air; and a cooling-water feed system configured to supply the cooling water to the spray device. The cooling-water feed system including: at least one tank configured to reserve the cooling water; a plurality of pipes connected to the tank independently of each other and configured to feed the cooling water to the spray device; and pumps installed for the pipes, respectively.
摘要:
Electrodes, particularly electrochemically active electrodes, may benefit from one or more pretreatment cycles in which the electrode is substantially oxidized, reduced or otherwise exhausted prior to use in an end use application, for example active agent delivery via iontophoresis. For instance, electrode lifetime may be advantageously increased, even when used to delivery relatively high currents or used at high current densities. Such may be necessary to delivery therapeutically effect dosage regimes, for instance of oxycodone. Use of a nonwoven fibrous substrate printed with a sacrificial ink may be advantageous relative to other substrates. Use of certain Ag/AgCl inks may be advantageous over other Ag/AgCl inks.
摘要:
An exposure apparatus comprises: a plurality of light sources; a first condensing unit, arranged to contact a light emitting surface of each of the light sources, that condenses the lights emitted from the plurality of light sources; and a second condensing unit that condenses the lights from each of the light sources, which are emitted from the first condensing unit, wherein the first condensing unit is configured so that a center of curvature of an output surface, to emit the light from the light source, of the first condensing unit is positioned near the side of the second condensing unit rather than an arrangement position of the light source.
摘要:
A Veff detector circuit generates input voltages VEP, VEN on the basis of a bias voltage which is fed back so that the difference between these input voltages may be a saturation voltage Veff, and a four-input operational amplifier means receives the input voltages VEP, VEN generated by the Veff detector circuit and generates the bias voltage VB by using reference voltages VERP, VERN which are externally inputted.
摘要:
This invention provides an image formation device at low cost, which can be miniaturized, of which the quality of an image is uniform, which can form a high resolution of color image at high speed wherein even if the relative mounting position of a light source and an optical element is dislocated, the deterioration of color registration can be reduced. Laser beams for each color sequentially emitted from each laser element of a laser array pass an imaging optical system and are split into the side of photoconductor drums and into the side of a deflecting optical system by a splitting optical system. Laser beams incident on the deflecting optical system are reflected by optical mirrors so that principal rays of the laser beams respectively converge on photodetectors and are incident on approximately the same position of each photodetector. The photodetectors individually detect the luminous energy of laser beams from each laser element.
摘要:
An apparatus for measuring an intima-media thickness of a blood vessel is disclosed. The apparatus includes: an ultrasound device for outputting digital image data representing an image of the blood vessel produced by scanning the blood vessel with an ultrasound; and a data analyzing device for receiving the output digital image data and calculating the intima-media thickness of the blood vessel according to the received digital image data. The digital image data includes a plurality of luminance values each corresponding to respective one of a plurality of pixels of the image. The data analyzing device includes: a setting device for setting a base position between a center of the blood vessel and a position in a vicinity of an inner intima wall of the blood vessel on the image, on the basis of a moving average of the luminance values; and a calculation device for detecting a maximum value and a minimum value from among the luminance values respectively corresponding to a predetermined number of the pixels arranged from the base position toward a position of an outer adventitial wall on the image, and calculating the intima-media thickness on the basis of the maximum value and the minimum value.
摘要:
An image recording apparatus has an array light source having a plurality of light-emitting elements arrayed in a predetermined density; a photosensitive member exposed to light beams emitted from the plural light-emitting elements so that images are recorded by fixing a traveling path of the light beams from the plural light-emitting elements to the photosensitive member and by moving the photosensitive member relative to the array light source; a beam-converging unit which intercrosses a bundle of the light beams emitted from the light-emitting elements onto a beam-conversion point; and an focusing unit disposed between the beam-converging unit and the photosensitive member, which images the light beams emitted from the plural of light-emitting elements and intercrossed by the beam-converging unit onto the photosensitive member.
摘要:
A multibeam laser recording apparatus is so arranged as to include a scanning line interval detecting mechanism located at a position equivalent to the surface of the image carrier, for detecting scanning line intervals of the plural laser beams scanned on the surface of the image carrier, and a controller for controlling the scanning line intervals of the plural laser beams scanned on the image carrier based upon an output derived from the scanning line interval detecting mechanism in such a manner that the scanning line intervals are kept constant.
摘要:
An optical scanning device having a scanning speed which can be used in a laser beam printer, a digital copier, a facsimile apparatus or the like, an optical scanning method using the optical scanning device, and an image forming apparatus using the optical scanning device are disclosed. The optical scanning device comprising: a light source for emitting a laser beam having a constant divergent angle; a thin film waveguide; means for coupling the laser beam to said thin film waveguide; and a comb-like electrode for exciting a surface acoustic wave of a high frequency sweep signal so that the laser beam is deflected to be output as parallel rays.