摘要:
An opto-acoustic gas analyzer has a black body light source, a chopper in the path of the light emitted from the light source for intermittently intercepting the light from the light source, a positive interference filter in the path of the light for filtering out light other than the wavelengths of light absorbed by the gas being analyzed, and an opto-acoustic detector which receives the filtered light and through which the gas to be analyzed is passed. A pressure change detector provided is provided in the opto-acoustic detector for detecting pressure changes in the gas and producing an electric signal corresponding such changes.
摘要:
A combined motor and rotational cell for use in an apparatus for measuring components in a gas colorimeter, smoke meter, etc. by utilizing light absorption or fluorescence. The combined motor and rotational cell has a motor with a plurality of magnetic poles around the periphery of thereof, at least one diametrically extending partition wall extending across the hollow interior for defining at least two compartments in the rotor, and optically transparent windows on the outside of the motor closing the compartments. A plate-shaped chopper is provided on one side of the rotor having a plurality of apertures therein equidistantly spaced around the chopper. A casing surrounds the rotor and supports the rotor shaft in bearings and has a plurality of coils around the inside of the peripheral wall opposed to the magnetic poles on the rotor. Apertures are provided in the opposite end walls of the casing aligned with the compartments in the rotor for passing light through the casing and the rotor.
摘要:
A gas analyzer includes a first conduit for the supply of gas to be tested, a second conduit for the supply of a standard gas, first and second cells, a light source for directing light rays through the first and second cells, and a detector for receiving the light rays after passing through the cells. There is provided a gas flow change-over device connected to the first and second conduits for alternating at fixed intervals between a first gas supply arrangement wherein fixed amounts of gas to be tested and the standard gas are simultaneously supplied to the first and second cells, respectively, and a second gas supply arrangement wherein the fixed amounts of the gas to be tested and the standard gas are simultaneously supplied to the second and first cells, respectively.
摘要:
A gas analyzer for measuring the concentration of a gaseous component in a test gas includes first and second separate cells adapted to alternately be filled with a test gas containing a gaseous component to be analyzed and a standard gas, light sources for directing rays of energy through the first and second cells and through the test gas and standard gas alternately contained therein, a detector positioned to receive the rays of energy after passage thereof through the first and second cells for detecting the concentration of the gaseous component within the test gas, and a changeover device connected to the first and second cells and adapted to be connected to sources of the test gas and the standard gas for alternately supplying the test gas and standard gas, at fixed intervals and in fixed amounts, into the first and second cells. The changeover device includes a single block having therein first and second inlets adapted to be connected to the source of test gas and the source of standard gas, respectively, first and second outlets respectively connected to the first and second cells, and a rotary valve rotatably movable between a first position respectively connecting the first and second inlets with the first and second outlets and a second position respectively connecting the first and second inlets with the second and first outlets.
摘要:
Warm water is pumped up by a pump from an underground aquifer present 1000 to 1500 m below the seabed, geothermal energy is caused to flow through a permeable layer below a methane hydrate layer, a dissociation boundary surface of an un-dissociated area of the methane hydrate layer is dissociated to generate methane gas, the methane gas is led into a production well from peripheral areas and through a gas inlet screen and caused to rise so that the methane gas is collected on the sea.
摘要:
It is an object of the present invention to provide a deriving technique with economy and technical difficulty improved without depending on fuel consumption for a heat source when methane gas is derived from a methane hydrate layer. Warm water is pumped up by a pump from an underground aquifer present 1000 to 1500 m below the seabed, geothermal energy is caused to flow through a permeable layer below a methane hydrate layer, a dissociation boundary surface of an un-dissociated area of the methane hydrate layer is dissociated to generate methane gas, the methane gas is led into a production well from peripheral areas and through a gas inlet screen and caused to rise so that the methane gas is collected on the sea.
摘要:
Pad lines are placed on the peripheral region of a chip along EAST band and WEST band (E/W band). In order to allow the chip with pads arranged on the peripheral region to be adaptable to a TSOP, VDD and VSS pads are arranged on the edge region on NORTH band and SOUTH band (N/S band) near the center of the N/S band. Moreover, in consideration of frame design for the TSOP, some pads on the ends of the pad lines among the pads included in the pad lines are arranged in reverse order relative to the order of pins. Further, VDDQ and VSSQ pads are arranged in the same order as that of pins for a package which requires no consideration of frame design. On the other hand, for use in a BGA package, VDD and VSS pads are arranged in pairs at respective ends of the pad lines. A semiconductor memory device with this pad arrangement is accordingly adaptable to various types of packages.
摘要:
An apparatus for analyzing carbon in metals, in which a metallic sample is burned in a current of oxygen in a combustion furnace and the concentration of carbon contained in the metallic sample is calculated from the total concentration of carbon monoxide and carbon dioxide in the gas generated in the combustion furnace, the concentration determined by means of a non-dispersive infrared analyzer. The non-dispersive infrared analyzer is provided with a detector which exhibits almost the same sensitivity to both carbon monoxide and carbon dioxide.
摘要:
An image processing apparatus (5) that corrects an input image signal (Xin) pixel by pixel to generate a corrected image signal (Xout), having a filtering means (2) that determines a luminance distribution of a pixel to be corrected and pixels neighboring the pixel to be corrected, a correction gain calculation means (3) that determines the correction gain of the pixel to be corrected, and an operation means (4) that uses the correction gain determined by the correction gain calculation means to perform an operation on the input image signal pixel by pixel. With this simple configuration, the dynamic range of the input image can be appropriately improved.
摘要:
An image capture apparatus which is compact and structurally simple and allows for prevention of a flicker noise, a method of capturing an image which allows for prevention of a flicker noise, and a mobile terminal using the apparatus and the method, are provided. In the image capture apparatus, a vertical cycle is adjusted so as to maintain 20 fps or 20/2m (m is an integer) fps, thereby to prevent a flicker noise in an image as obtained. To this end, in the image capture apparatus, a frequency of a horizontal transfer clock, a horizontal count level and a vertical line count level may be adjusted. Further, a fraction count is provided to adjust the length of one vertical cycle. Moreover, the image capture apparatus may be incorporated in a mobile terminal.