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111. 发明专利

FR2772188B1 未知
公开(公告)号：FR2772188B1
公开(公告)日：2000-02-11
申请号：FR9715384
申请日：1997-12-05
申请人： AGENCE SPATIALE EUROPEENNE
发明人： PEACOCK ANTHONY , VENN ROBERT
IPC分类号： H01L39/22 , H01L27/18 , H01L39/10 , H01L27/146
摘要： Each superconductor section has square shaped mesa sections. The upper planes have conductor terminations placed along the diagonals, and a better spacing of terminations than previously obtained is available because there is no capacitive interaction.

112. 发明专利

FR2768215B1 未知
公开(公告)号：FR2768215B1
公开(公告)日：1999-11-19
申请号：FR9711229
申请日：1997-09-10
申请人： AGENCE SPATIALE EUROPEENNE
发明人： KARAMATA BORIS
IPC分类号： F16N7/36 , F16N17/00 , F16N17/06 , F16N7/14 , F16N7/38 , B64G1/66
摘要： The invention relates to a lubrication system for a mechanism (27), on-board a spacecraft. It comprises a non pressurized tank (20) communicating with the mechanism (27) via a tube (220). A piston (23) closes the tube (220) while the mechanism is at rest. The piston (23) is controlled by a first spring (5) and by a second, shape memory, spring (24) opposing the latter, which lengthen by thermal effect. A controller (25, 26) supplies this spring with a current (I) to actuate it. An annular element(7), pushed by a cylindrical spring (6), defines a capillarity filled pumping chamber (22). When the temperature of the shape memory alloy (24) falls back below a threshold, the spring (24) recovers its original shape, the first spring (5) pushes back the piston (23) and expels a dose of lubrication fluid (4).

113. 发明专利

FR2772955A1 未知
公开(公告)号：FR2772955A1
公开(公告)日：1999-06-25
申请号：FR9716124
申请日：1997-12-19
申请人： AGENCE SPATIALE EUROPEENNE
发明人： SILVESTRIN PIERLUIGI , COOPER JOHN
IPC分类号： G01S1/00 , G01S19/29 , G01S19/32 , G06F17/15 , H04B7/00
摘要： Satellite signals (L1,L2) are correlated against known code P. The resultant signals are integrated over a period estimated equal to that of a single bit of the unknown code W, to obtain two further which are cross correlated. A degree of confidence whether the first or second signal corresponds to code W is determined depending whether the result of the cross correlation exceeds a positive or negative threshold.

114. 发明专利

FR2771172A1 Compensation module for vibratory system 未知
公开(公告)号：FR2771172A1
公开(公告)日：1999-05-21
申请号：FR9714568
申请日：1997-11-20
申请人： AGENCE SPATIALE EUROPEENNE
发明人： SCIACOVELLI DONATO
IPC分类号： G01M7/02 , G01M7/06
摘要： Eight jacks instigate four horizontal forces (H1,H2,H3,H4) and four vertical forces (V1,V2,V3,V4) on a vibrating table (1) and sample (10). Control signals are applied through a compensation module which is an optimal hyperbolic decoupling function and takes into account the stiffness of the system, jack piston surface, the dynamic transformation matrix and the rigid mass matrix

115. 发明专利

FR2765189A1 Passive stabilisation of the aim of a space vehicle in solar orbit 未知
公开(公告)号：FR2765189A1
公开(公告)日：1998-12-31
申请号：FR9707917
申请日：1997-06-25
申请人： AGENCE SPATIALE EUROPEENNE
发明人： CANDE JACQUES MARIE ANTOINE FR
IPC分类号： B64G1/24 , B64G1/28 , B64G1/40 , B64G1/44 , G05D1/08
摘要： The passive stabilisation operates with a satellite (1) carrying two solar panels (2,3) perpendicular to the incident sunlight and symmetric about a gyroscopic stabilisation axis (Zs). Each solar panel has an auxiliary flap (4,5) near its outer end. These auxiliary flaps are at least partially reflective. The flaps extend from the solar panel so that as the satellite rotates under the solar force one of the flaps is carried by this rotation to a position where it partly shades the solar panel, with the shading increasing as the rotation of the satellite increases. This reduces the net solar force on one panel, and the imbalance with the other panel causes the satellite to rotate back toward its correct orientation.

117. 发明专利

FR2681199B1 未知
公开(公告)号：FR2681199B1
公开(公告)日：1993-12-03
申请号：FR9111202
申请日：1991-09-11
申请人： AGENCE SPATIALE EUROPEENNE
发明人： DE GAUDENZI RICCARDO , VIOLA ROBERTO , ELIA CARLO
IPC分类号： H04B7/216 , H04J13/00 , H04L5/02 , H04L5/00
摘要： PCT No. PCT/EP92/02001 Sec. 371 Date Jul. 9, 1993 Sec. 102(e) Date Jul. 9, 1993 PCT Filed Aug. 28, 1992 PCT Pub. No. WO93/05589 PCT Pub. Date Mar. 18, 1993.Before modulating the transmission carrier, each binary data signal is individually coded as a discrete symbol belonging to a PSK constellation of N symbols which are combined with N discrete points to produce two binary signal streams of which the first is in phase with the incoming signal while the second is in phase quadrature with said incoming signal. Each of said two binary signal streams is assigned its own signature by combining it with a discrete spreading code to produce two spread composite signal streams each of which is to be applied to a modulator. Both of said spreading codes are substantially orthogonally cross-correlated. The method may be used in a satellite communications system, in particular for digital sound transmission and communication via land microterminals.

118. 发明专利

ES2034302T3 未知
公开(公告)号：ES2034302T3
公开(公告)日：1993-04-01
申请号：ES88401198
申请日：1988-05-18
申请人： AGENCE SPATIALE EUROPEENNE
发明人： MESLAND, DICK
IPC分类号： B64G1/66 , B64G7/00 , C12N5/02 , C12N15/00 , G09B9/00
摘要： The method involves impressing on the system an initial acceleration of suitable magnitude and subjecting the system to an acceleration stage of suitable duration. The direction of the acceleration is inclined to the vertical at a suitable angle so as to make the system follow a ballistic trajectory in the said gravitational field. The ballistic trajectory follows the acceleration stage and comprises an ascending phase and a descending phase whose respective durations define the total duration of the ballistic stage, i.e. the stage during which the system describes the said ballistic trajectory. The ratio between the durations of the ballistic and acceleration stages being more or less equal to the ratio between the magnitude of the initial acceleration of the system and the magnitude of the acceleration due to gravity. … The above sequence is repeated by again impressing on the system an initial acceleration at the end of each sequence, i.e. at the end of the descending phase. This repetition is carried out enough times to cover a predetermined period of time. … …

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