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公开(公告)号：JP2002071706A
公开(公告)日：2002-03-12
申请号：JP2000265178
申请日：2000-09-01
Applicant: NAT AEROSPACE LAB
Inventor： MARUI SHIGEJI
IPC: G01P15/105 , G01P15/08 , H01L29/84 , H01L39/00 , H01L39/22
Abstract: PROBLEM TO BE SOLVED: To obtain a superconductive accelerometer having a higher resolving power with a smaller and simple structure by removing the oscillation of an inertial mass as caused by the convection of a refrigerant as noise in the detection of acceleration. SOLUTION: This apparatus comprises an inertial mass 10 suspended swingably within a magnetically shielded space in the atmosphere of a gas, a permanent magnet 14 as magnetic field generation means arranged adjacent to it, a SQUID fluxmeter 15 for measuring changes in magnetic flux as caused by variations of the interval between the inertial mass and the magnetic field generation means, A magnetic shield 11, the SQUID fluxmeter 15 and the internal mass 10 surrounding the space are made of a high temperature superconductive material. Thus, the magnetic shield is cooled down below the critical temperature in the transition to the superconductive state thereof, thereby keeping the whole of the accelerometer below the critical temperature in the transition to the superconductive state thereof.
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公开(公告)号：JP2001235112A
公开(公告)日：2001-08-31
申请号：JP2000042552
申请日：2000-02-21
Applicant: JAPAN SCIENCE & TECH CORP , NAT AEROSPACE LAB
Inventor： HAYASHI SHIGERU
Abstract: PROBLEM TO BE SOLVED: To provide a burnt gas discharging self-circulating burner which does not allow a burnt gas to be readily mixed with a premixed gas or fresh air even when the burner makes continuous combustion without using any blower, compressor, nor pump. SOLUTION: This self-circulating burner is constituted in such a way that, in an outer duct 1 constituting this burner, a fuel injector 2 is set up nearly concentrically with the duct 1 and, at the same time, an inner duct 6 is arranged nearly concentrically with the duct 1 at a distance from the injector 2 on the downstream side of the injector 2. Then an annular passage 7, through which a mixed gas of fuel and fresh air is made to flow, is formed between the external surface of the inner duct 6 and internal surface of the outer duct 1 and the upstream side of the inner duct 6 is caused to communicate with the passage 7 and part of the burnt gas is made to return to the annular passage as a circular glow by utilizing a bottom pressure section formed in the inner duct 6.
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公开(公告)号：JP2001183250A
公开(公告)日：2001-07-06
申请号：JP36689799
申请日：1999-12-24
Applicant: NAT AEROSPACE LAB
Inventor： UEDA TETSUHIKO , SOTOZAKI TOKUO , KAI TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a road surface friction measuring device capable of being easily mounted on a general automobile and measuring coefficients of friction of various road surfaces such as a road, a runway or the like with high accuracy. SOLUTION: This device has a spindle 5 removably connected to a wheel of a driving wheel 3 of an automobile, an oscillatable supporting arm 6 connected to the spindle, and a measuring ring rotatably supported by the supporting arm. The supporting arm 6 is provided with a vertical drag generating mechanism generating the vertical drag to be added to the self-weight of the measuring ring 8, a first detecting means for detecting the vertical drag received by the measuring ring from a road surface, a rotation transmitting mechanism for transmitting the rotation of the spindle to the measuring ring for producing the difference in peripheral speeds between the driving wheel and the measuring ring, and a second detecting means for detecting the rotational resistance received by the driving wheel from the road surface, and a coefficient of friction of the road surface is calculated by an operating means on the basis of detected values of these detecting means, and the self-weight of the measurer including the arm.
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公开(公告)号：JP2001152022A
公开(公告)日：2001-06-05
申请号：JP33854199
申请日：1999-11-29
Applicant: MITSUI CHEMICALS INC , NAT AEROSPACE LAB
Inventor： ABE KISHIYUN , IWATA KENJI , ISHIKAWA JUNICHI , ITO MASAYOSHI , TAMAI MASAJI , OGASAWARA TOSHIO
Abstract: PROBLEM TO BE SOLVED: To obtain a silicon-containing resin composition having excellent heat resistance and mechanical characteristics. SOLUTION: This silicon-containing resin composition comprises a silicon- containing resin having a repeating unit of general formula (1) (R1 and R2 are each a hydrogen atom or a specific group; R3 is a specific group containing an aromatic group) and/or a cured product of the silicon-containing resin and a bismaleimide compound of general formula (2) (R4 is a specific group containing a hydrocarbon group and/or an aromatic group; n is a positive integer of 1 to 30).
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公开(公告)号：JP2001114199A
公开(公告)日：2001-04-24
申请号：JP29798499
申请日：1999-10-20
Applicant: NAT AEROSPACE LAB
Inventor： MOTOHASHI TOSHIMI , MATSUMOTO KOTARO , OKAMI YOSHIAKI
Abstract: PROBLEM TO BE SOLVED: To provide an attitude control method for an orbital non-cooperative object capable of damping the angular momentum of the orbital non-cooperative object by simple method without a large-scale system such as a net, tether or the like. SOLUTION: A projection material 2 is projected to the non-cooperative objet 1 freely moving on aerospace orbit from another satellite to apply an impact in the direction of damping the angular momentum, thereby reducing the angular momentum. Accordingly, the movement of the non-cooperative object can be made into a single spin or stopped so that capture by a robot arm or the like is enabled.
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Patent Agency Ranking
公开(公告)号：JP2001052526A
公开(公告)日：2001-02-23
申请号：JP22252799
申请日：1999-08-05
Applicant: NAT AEROSPACE LAB
Inventor： TANJI YASUNORI , KIZARA KATSUHITO , KUMAGAI TATSUO , MORIYA SHINICHI , SHINNO MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To provide an inexpensive electric insulating coating film material excellent in heat resistance, heat transmittance and heat resistance strain characteristics in use at normal temperatures of 200-500 deg.C, in which an electric insulating coating film is formed at a heat treatment temperature of 500 deg.C or lower. SOLUTION: In a fabricating method, an electric insulating coating film material including a mixture 4 composed of composite glass powder containing water lass, PbO or the like and electric insulating powder is applied onto a metal substrate 2, followed by drying and heating, thereby causing a thermal oxidation reaction. Thus, an electric insulating coating film 7 consisting of an electric insulating oxide layer 5 and a glass-based coating film 6 is formed on the metal substrate.
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公开(公告)号：JP2001050880A
公开(公告)日：2001-02-23
申请号：JP22207999
申请日：1999-08-05
Applicant: NAT AEROSPACE LAB
Inventor： MINEGISHI MASAKATSU , KUMAKURA IKUO , IWASAKI KAZUO
Abstract: PROBLEM TO BE SOLVED: To measure load data with good efficiency and in large quantities by a method, wherein a plumb bob is made to fall freely on a coupled body and the load data which is loaded on a plurality of shock absorbing members is measured by each load meter. SOLUTION: When a plumb bob 1 falls freely on a base, for shock-absorbing device mounting, whose surface is kept horizontal, the plumb bob 1 applies a load in the x-axis direction with reference to the base 2 for mounting in a state where the coupling protruding part 1a of the plumb bob 1 is fitted to the recessed part of the base 2 for mounting. When an impact force with reference to shock absorbing device M1, M2 due to the fall of the plumb bob 1 is at a certain value or higher, respective pins 10 for limit load guarantee of the absorbing devices M1, M2 are broken, compressed load is given in the axial direction of respective members 6 for absorption with respect of to taps 5 of the absorbing devices M1, M2, and cracks are generated along grooves, which are formed on outer circumferential faces of the members 6 for absorption. Therefore, load level at of start destruction of the pins 10 can be suppressed to be low, and the destruction of the pins 10 progresses stably. As a result, a load which is applied to the members 6 for absorption can be kept nearly constant over a comparatively long time.
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公开(公告)号：JP2001004651A
公开(公告)日：2001-01-12
申请号：JP18013999
申请日：1999-06-25
Applicant: NAT AEROSPACE LAB
Inventor： MARUI SHIGEJI
IPC: G01P15/105 , G01P15/08 , G01R33/035
Abstract: PROBLEM TO BE SOLVED: To provide a high-temperature superconducting accelerometer having high resolution, capable of miniaturizing and simplifying cooling equipment and using liquid nitrogen, one of unlimited resources, in place of liquid helium of rare gas. SOLUTION: An inertial mass 2 consisting of a high-temperature superconducting body is oscillatably supported in a superconducting magnetic shield 1, and a permanent magnet 4 is disposed as a magnetic field generating means to generate strong magnetic field. When acceleration acts, a gap between the inertial mass having properties of complete diamagnetism and the permanent magnet changes and flux density also changes, which is measured by a superconducting quantum interference flux meter 5 using a Josephson effect.
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公开(公告)号：JP2000318556A
公开(公告)日：2000-11-21
申请号：JP13131299
申请日：1999-05-12
Applicant: NAT AEROSPACE LAB
Inventor： KUMAKURA IKUO , MINEGISHI MASAKATSU
Abstract: PROBLEM TO BE SOLVED: To provide a shock-absorbing device capable of maintaining load of a shock-absorbing member small to the increase of compression quantity and keeping this load almost constant over a relatively long period of time. SOLUTION: This shock-absorbing device has a cylindrical shock-absorbing pipe body 1 with a plurality of grooves formed on the outer peripheral surface or inner peripheral surface at isometric spaces extending almost parallel with a center axis, a cylindrical holding pipe body 8 with one end side engaged with one end side of the shock-absorbing pipe body 1, a shaft body 3 positioned on the inner center axis of the shock absorbing pipe body 1 and inserted on one end side into one end side of the holding pipe body 8 via a sliding bearing 4, a limit load ensuring pin 5 for communicating one end side of the shock- absorbing pipe body 1, one end side of the holding pipe body 8 and one end side of the shaft body 3, a load jig 2 engaged with the other end side of the shock absorbing pipe body 1 and the other end side of the shaft body 3, and a first and a second fitting parts 6, 7 fitted to the free end side of the load jig 2 and the other end side of the holding pipe body 8 respectively.
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公开(公告)号：JP2000207567A
公开(公告)日：2000-07-28
申请号：JP357699
申请日：1999-01-11
Applicant: NAT AEROSPACE LAB
Inventor： SASA SHUICHI , NINOMIYA TETSUJIRO
Abstract: PROBLEM TO BE SOLVED: To obtain a method and device to provide a position and attitude information calculating system with precision based on the object image on the ground, especially, the new position and attitude information calculating system by which more certain position and attitude information is obtained by juxtaposing the conventional position and attitude calculating means mounted on an aircraft and also the information with a high reliability is obtained even in case a fault occurs in another meter. SOLUTION: The inclined angle of a horizon image, the position of a disappearing point and the inclination coefficients of the two lines of both-side boundaries on a runaway are detected on a runaway screen whose image is picked-up a camera attached to the nose of the aircraft, a bank angle is calculated by the inclined angle of the horizon, a yaw angle and a pitch angle are calculated based on the Eulerian coordinate transforming formula of earth coordinates with screen coordinates through the use of the coordinate position of the disappearing point and also altitude information and a runaway width direction position are calculated based on the Eulerian coordinate transforming formula of the earth coordinates and the screen coordinates through the use of the inclination coefficients of the two lines in the both-side boundaries of the runaway and the values of the bank angle, the yaw angle and the pitch angle of the aircraft.
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