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1.发明专利
公开(公告)号：JP2003270145A
公开(公告)日：2003-09-25
申请号：JP2002070691
申请日：2002-03-14
Applicant: NAT AEROSPACE LAB
Inventor： ASAI KEISUKE , NISHIDE HIROYUKI
IPC: G01L1/00 , C08F238/02 , C08G61/04 , C09D5/00 , C09D143/00 , C09D149/00 , G01N21/64
Abstract: PROBLEM TO BE SOLVED: To obtain a functional polymer having a pressure-sensitive coloring matter, pressure-sensitive paint and pressure-sensitive element which can prevent deterioration of photoresponse due to aggregation of coloring matter when an organic solvent is evaporated and produce a sensor thin film having uniform characteristics. SOLUTION: Since an oxygen extinction coloring matter group included in a pressure-sensitive coloring matter directly bonds with an organic polymer compound having a trimethylsilyl group by a covalent bond, when the solvent is evaporated, the coloring matter cannot form aggregation because molecules of the coloring matter are fixed with the polymer. Therefore, deterioration of photoresponse due to aggregation of coloring matter when an organic solvent is evaporated can be prevented, which is a problem when applying a conventional mix-type pressure-sensitive paint. By mixing a functional polymer with a solvent to prepare a pressure-sensitive paint, a sensor thin film having uniform characteristics can be formed with spray coating or spread coating. In addition, by dissolving a single component into an adequate solvent, a coating liquid suitable for spray coating and spread coating can be obtained with high repeatability. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2002162354A
公开(公告)日：2002-06-07
申请号：JP2000359554
申请日：2000-11-27
Applicant: NAT AEROSPACE LAB
Inventor： AMAO YUTAKA , ASAI KEISUKE , TEZUKA NOBUKAZU , KAMEDA MASAHARU
Abstract: PROBLEM TO BE SOLVED: To obtain a pressure-sensitive coating with high levels of function which has a high sensitivity of oxygen to rapidly respond and not to be affected by a temperature variation, and allow easily forming an oxygen sensing film. SOLUTION: A sensor having functions for sensing oxygen and pressure, has a self-organizing function on a surface of a substrate and comprises a thin film formed from a luminous coloring matter by an excited light. The coloring matter having the functions for sensing oxygen and pressure, which has the self-organizing function, has a carboxyl group or a sulfone group. The substrate uses a metal oxide film, e.g. an aluminum oxide, a titanium oxide, an iron oxide, etc.
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公开(公告)号：JPH1137942A
公开(公告)日：1999-02-12
申请号：JP20735297
申请日：1997-07-17
Applicant: NAT AEROSPACE LAB , JAPAN RES DEV CORP
Inventor： ASAI KEISUKE , OKURA ICHIRO
Abstract: PROBLEM TO BE SOLVED: To reduce restriction on a sensor substance by exciting an oxygen reactive optically pimping substance by a pulse light to measure hourly changes in the intensity of absorption of the measuring light attributed to the molecules of the pumped substance. SOLUTION: An oxygen reactive optically pumping substance such as zinc tetraphenyl porphyrin is fixed thinner on a substrate to make an oxygen sensor 1. The oxygen sensor 1 is irradiated with a laser beam (pulse light) 2 to excite. Measuring light is projected to the oxygen sensor 1 through an optical fiber 4 from a light source 3 and the reflected light is picked up to be detected by a photo detector 6. In other words, a hourly change is measured in the absorption intensity of the measuring light by the oxygen reactive optically pumped substance as being excited. The concentration of oxygen is determined from a pattern 8 of the hourly change. The utilisation of the light absorption of the optically pumped substance enables the utilization of the optically pumping substance accompanying no luminescence thereby allowing the selection of the optimum sensor according to time resolutions or the like of a measuring device.
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Patent Agency Ranking
公开(公告)号：JPH0333636A
公开(公告)日：1991-02-13
申请号：JP16918489
申请日：1989-06-30
Applicant: NAT AEROSPACE LAB
Inventor： ASAI KEISUKE
Abstract: PURPOSE:To accurately measure the capacity of an actual exhaust nozzle using a reduced-scale model by mounting an exhaust nozzle model consisting of a core nozzle and a fan nozzle to one end of a pressure-resistant container filled with low temp. nitrogen gas to perform a test. CONSTITUTION:An exhaust nozzle model 12 consisting of a core nozzle 13 and a fan nozzle 14 is mounted to a pressure-resistant container 3 covered with a heat insulating layer. A liquid nitrogen supply apparatus A holds the temp. in the pressure-resistant container 3 to predetermined temp. lower than the freezing point, for example, -120 deg.C or less. The pressure in the pressure- resistant container 3 is controlled by an exhaust apparatus B. High pressure nitrogen gas or a gaseous mixture of nitrogen and methane held to room temp. or heated to predetermined temp., for example, 15 - 200 deg.C is supplied to the core nozzle 13 from a high pressure gas supply apparatus C and nitrogen gas of predetermined temp. lower than the freezing point, for example, -100 deg.C or lower is supplied to the fan nozzle 14 from a low temp. nitrogen gas supply apparatus D. By this constitution, the same operating state as the thermostatic exhaust gas of an actual jet engine is regenerated and an exhaust nozzle apparatus can be tested using Reynolds' number of an actual object.
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公开(公告)号：JP2001249076A
公开(公告)日：2001-09-14
申请号：JP2000061625
申请日：2000-03-07
Applicant: NAT AEROSPACE LAB
Inventor： ASAI KEISUKE , OKURA ICHIRO , NISHIDE HIROYUKI
Abstract: PROBLEM TO BE SOLVED: To obtain a highly functional pressure-sensitive paint capable of easily forming an oxygen sensitive film regardless of the material of a specimen while having rapid response against fluctuations in pressure and high oxygen sensitivity not lowered even by the temperature of liquid nitrogen. SOLUTION: By using poly (TMSP) as a binder of a light exciting substance, a paint mixed with the light exciting substance becomes the extremely excellent highly functional pressure-sensitive paint which has both of high pressure sensitivity and low temperature sensitivity by the high oxygen transmissivity of the binder and does not lose oxygen sensitivity even at the temperature of liquid nitrogen and has good response against fluctuations in pressure and can be subjected to spray coating and can be applied regardless of the material and shape of a specimen.
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6.发明专利
公开(公告)号：JPH1137944A
公开(公告)日：1999-02-12
申请号：JP20735197
申请日：1997-07-17
Applicant: NAT AEROSPACE LAB , JAPAN RES DEV CORP
Inventor： ASAI KEISUKE
Abstract: PROBLEM TO BE SOLVED: To obtain an oxygen sensor exhibiting a high oxygen sensitivity in an atmosphere from low to normal temperature in which a film of fluorescent substance having an extremely high oxygen sensitivity can be formed easily in cryogenic and normal temperature atmosphere, and to measure the pressure distribution accurately and easily at high sensitivity using the oxygen sensor in a trace oxygen low temperature atmosphere, e.g. low temperature wind tunnel or high layer atmospheric environment. SOLUTION: A porous oxide film is formed electrochemically on in an electrolyte on the surface of a basic metal material 1 using the basic metal material 1 as an anode 4. The basic metal material 1 formed with the oxide film is then immersed, as a cathode 1, into a solution 13 of an optical pumping substance having oxygen-sensitive characteristics. Consequently, the oxygen-sensitive is adsorbed electrochemically into fine pores in the oxide film and a film of a light emitting substance having an extremely high oxygen sensitivity can be obtained without requiring any oxygen transmitting resin.
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公开(公告)号：DE10327492A1
公开(公告)日：2004-01-08
申请号：DE10327492
申请日：2003-06-17
Applicant: NAT AEROSPACE LAB OF JAPAN CHO
Inventor： ASAI KEISUKE , NISHIDE HIROYUKI , OKURA ICHIRO
Abstract: The present invention provides an optical oxygen concentration measurement method and optical oxygen concentration measuring sensor wherein a light-absorbing dye-molecule layer whose absorption spectrum varies depending on the bonding with oxygen molecules is combined with a light-emitting layer, and the oxygen concentration of the ambient fluid can be measured. The light-absorbing layer 4 laminated to an oxygen-quenching light-emitting layer 3 is a film comprising a cobalt-porphyrin complex (CoP) or other light-absorbing dye molecule 7 whose absorption spectrum varies depending on the bonding with oxygen molecules. When the degree of overlap with the light emission spectrum or excitation (absorption) spectrum of the light-emitting layer 3 varies as a result of a variation in the absorption spectrum possessed by the light-absorbing layer 4, the light intensity of output light varies in accordance with the degree of overlap, and the oxygen concentration of the ambient fluid can be measured. These measurement method and measuring sensor can be applied not only to optical fiber sensors, but also to wind tunnel experiments and the like as pressure-sensitive paints.
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公开(公告)号：DE10310747A1
公开(公告)日：2003-12-04
申请号：DE10310747
申请日：2003-03-10
Applicant: NAT AEROSPACE LAB OF JAPAN TOK
Inventor： ASAI KEISUKE , NISHIDE HIROYUKI
IPC: G01L1/00 , C08F238/02 , C08G61/04 , C09D5/00 , C09D143/00 , C09D149/00 , G01N21/64 , C08F238/00
Abstract: An oxygen-quenching luminophore constituting part of a pressure-sensitive luminophore is directly bonded by a covalent bond to an organic polymer compound having trimethylsilyl groups, so the luminophore molecules are retained in the polymer and free aggregation is inhibited when the organic solvent is evaporated. It is therefore possible to prevent light response from being reduced by the aggregation of the luminophore molecules during evaporation of the organic solvent, which is a drawback of forming films from conventional mixed-type pressure-sensitive paints. A thin-film sensor with uniform characteristics can be formed by spraying or application from a pressure-sensitive paint obtained by mixing a functional polymer with a solvent. In addition, a coating solution that has high reproducibility and is suitable for spraying or application can be obtained merely by dissolving the functional polymer as a single component in a suitable solvent. It is possible to obtain a functional polymer, a pressure-sensitive paint, and a pressure-sensitive element in which a reduction in light response due to luminophore aggregation can be prevented, and a thin sensor film having uniform characteristics can be formed, even when the organic solvent has evaporated.
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