Abstract:
A phase shift between two repeated square wave signals having equal frequency and duty is detected and detected phase shift is integrated during the appointed cycles of the square wave signals and the mean value per cycle is calculated from the integrated value, and a phase of one signal is overlapped on a phase of another signal automatically at the mean value. The same phase can be automatically given to two square wave signals having different phases.
Abstract:
PROBLEM TO BE SOLVED: To improve detection efficiency of a β-ray detector. SOLUTION: This radiation detector includes a scintillator 2 having a β-ray entrance plane 21 on which a β-ray incidents and a light emitting face 22 for emitting fluorescence, and a wavelength conversion fiber 3 provided in a β-ray side, and a side circumferential face 31 of the wavelength conversion fiber 3 face-contacts with the light emitting face 22. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a configuration measuring device capable of acquiring the configuration of a detecting object for accurately measuring intensity of a radiation generated from the detecting object surface. SOLUTION: This configuration measuring device 20 outputs configuration information of the detecting object to a radiation detection device 11 equipped with a detection part 11a for detecting the radiation generated from the detecting object S and a conveyance part 10 for conveying the detecting object S. The device 20 is provided with: light emitting parts 221, 222, 231 emitting a plurality of linear lights from different directions toward the detection object S in the conveyance process; light receiving parts 24, 25 receiving the linear lights transmitted through the detection object S without being shielded thereby among the linear lights irradiated from the light irradiation parts 221, 222, 231; and a configuration recognition part 30 recognizing the approximate configuration of the detection object S based on information from the linear lights received by the light receiving parts 24, 25. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an electronic cooling device efficiently operable even when a using environmental temperature has a large width, and inexpensively and rationally operable for a long period without using a large-capacity control transistor, capable of exhibiting a desired cooling power. SOLUTION: In this electronic cooling device, a heat exchange block 1 is installed on one side of a Peltier element 2 driven by a constant-current circuit 25, and a radiator 3 is installed on the other side thereof, and the radiator 3 is air-cooled by a fan 12. In the device, a voltage between a cooling-side terminal and a heating-side terminal of the Peltier element 2 is detected, and the driving power for the fan 12 is changed based on the voltage. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide an electronic cooler with excellent durability which permits continuously prolonged use thereof for minimizing replacing costs thereof by preventing drop in adiabatic characteristics of heat insulating materials thereof to the utmost. SOLUTION: In the electronic cooler, an electronic theremomodule 2 is installed closely stuck on a heat exchange block 1 for cooling while the heat exchange block 1 and the electronic thermomodule 2 are covered with the heat insulating material 4. A damproofing material 14 is provided inside the heat insulating material 4.
Abstract:
PROBLEM TO BE SOLVED: To provide a profile measuring apparatus 1 for sensitively and highly accurately measuring a profile regardless of size from a small-sized measurement object S to a large-sized measurement object S. SOLUTION: The profile measuring apparatus includes: two or more cylindrical Fresnel lens 22 for converting light from a light source 21 into a parallel light, irradiating a measurement object S with the parallel light, and continuously provided in a longitudinal direction; a movement mechanism for relatively moving the cylindrical Fresnel lens 22 and the measurement object S in a direction orthogonal in the longitudinal direction; a condenser lens 31 for condensing the parallel light passing, without being shielded on the measurement object S; a light-receiving part 32 for detecting light, condensed with the condenser lens 31, to be converted into an electrical signal; and a profile recognition part 4 for recognizing a part or the entirety of the profile of the measurement object S, based on the electrical signal from the light-receiving part 32. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To reliably measure a β-ray dose regardless of a nuclide. SOLUTION: In a method for measuring the β-ray dose based on an output signal from a β-ray detector 2, pulse signals shaped by the output signal are counted discriminately corresponding to a peak value, and each value determined by multiplying the peak value and the count value together is integrated, and the β-ray dose is measured based on the integrated value. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To reduce a noise in ambient temperature variation, while securing an S/N ratio, in a β-ray detector. SOLUTION: This noise reduction structure includes the first substantially planar β-ray detector 2 having a scintillator and a wavelength conversion fiber, the second substantially planar β-ray detector 3 disposed with layered along a thickness direction of the first β-ray detector 2, and having a scintillator and a wavelength conversion fiber, and a β-ray shielding plate 4 provided between the first β-ray detector 2 and the second β-ray detector 3 to shield a β-ray, a shape of the scintillator of the first β-ray detector 2 is same to that of the second β-ray detector 3, and the wavelength conversion fiber of the first β-ray detector 2 and the second β-ray detector 3 are same in constitution thereof. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To reduce the number of installed photodetectors while having a large area of thin detecting face. SOLUTION: A band-like body comprising a plurality of scintillator fibers arrayed in parallel is provided with sheet-like bodies formed foldedly once or plurality of times not to be overlapped in at least one part, the photodetectors connected to a terminal end of the band-like body, and a sheet-like light reflecting material provided overlappedly on the sheet-like body. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an optical light chopper having both desired optical light chopping and filter functions and capable of being satisfactorily incorporated to an infrared gas analyzer etc. SOLUTION: An infrared transmitting part and an infrared shielding part 5 are formed in an infrared transmitting substrate 2. A filter part 4 for transmitting infrared rays of a specific wave region is formed in the infrared transmitting part of the substrate 2. COPYRIGHT: (C)2005,JPO&NCIPI