公开(公告)号：FR2689627B1

公开(公告)日：1997-06-20

申请号：FR9204520

申请日：1992-04-07

Applicant: SEXTANT AVIONIQUE

Inventor： BARNY HERVE ,  FIMA HENRI ,  TORREGROSA MICHEL

IPC: G01D3/06 ,  G01L1/08 ,  G01L11/00 ,  G01P15/13 ,  G01D5/12 ,  G01L9/12 ,  G01P15/08

公开(公告)号：FR2726361B1

公开(公告)日：1997-01-17

申请号：FR9413146

申请日：1994-10-28

Applicant: SEXTANT AVIONIQUE

Inventor： FIMA HENRI ,  PEDRAZA RAMOS SYLVIE

IPC: G01C19/56

Abstract: The micro-gyrometer is designed to detect rotation around a first direction (z). It includes a plate (1) which is orthogonal to the first direction, suspended w.r.t a fixed frame (8), and excited at its resonant frequency in a second direction (x) perpendicular to the first direction (z). Rotation around the direction (z) causes vibration of the plate in a third direction (y) orthogonal to the two others (x,z). The plate has teeth (9,10) extending in the second (x) and third (y) directions. These teeth engage without contact into slots (11,12) fixed to the frame (8). Each of the teeth supports a metal coatings, which form capacitors (Cx,Cy), w.r.t similar metal coatings on the slots (11,12).

公开(公告)号：GB2284666A

公开(公告)日：1995-06-14

申请号：GB9424491

申请日：1994-12-05

Applicant: SEXTANT AVIONIQUE

Inventor： FIMA HENRI

IPC: G01K11/20 ,  G01N21/64

Abstract: A method for the optical determination of the temperature of a gaseous mixture i.e. atmospheric gases, by using a Nd:YAG laser to excite fluorescence in molecular methane, comprising the stages consisting: - of exciting in the infrared range the molecules of gas of the said mixture, from a first vibrational level to a second vibrational level; - of allowing the rotational relaxation of said molecules between the different rotational sub-levels of the second vibrational level; - of measuring the ratio of the populations of molecules located at two of the rotational sub-levels; and - of deducing from the said ratio the temperature of the gaseous mixture.

公开(公告)号：DE69105295D1

公开(公告)日：1995-01-12

申请号：DE69105295

申请日：1991-02-12

Applicant: SEXTANT AVIONIQUE

Inventor： FIMA HENRI

IPC: G01L11/02 ,  G01N21/47 ,  G01L11/00 ,  G01N21/33 ,  G01K11/00

Abstract: Using a laser generator generating a very fine line Po and by excitation of an absorption line (R) of molecular oxygen, back-scattered radiation is caused, the back-scattered energies at two different distances are measured, the ratio of these energies is determined and an absorption coefficient, which is a function of the temperature and the molecular density of oxygen, is derived from this and, having determined the temperature of the air, the density, and therefore the pressure, is computed. The absorption line R belonging to a Schumann-Runge band of molecular oxygen is excited and the absorption line R is very wide with respect to the Rayleigh diffusion spectrum.

公开(公告)号：FR2658608B1

公开(公告)日：1993-12-03

申请号：FR9002181

申请日：1990-02-22

Applicant: SEXTANT AVIONIQUE

Inventor： FIMA HENRI

IPC: G01L11/02 ,  G01N21/47 ,  G01N21/64 ,  G01N33/00 ,  G01L1/25 ,  G01K11/00 ,  G08C23/00 ,  G01C21/00

Abstract: Using a laser generator generating a very fine line Po and by excitation of an absorption line (R) of molecular oxygen, back-scattered radiation is caused, the back-scattered energies at two different distances are measured, the ratio of these energies is determined and an absorption coefficient, which is a function of the temperature and the molecular density of oxygen, is derived from this and, having determined the temperature of the air, the density, and therefore the pressure, is computed. The absorption line R belonging to a Schumann-Runge band of molecular oxygen is excited and the absorption line R is very wide with respect to the Rayleigh diffusion spectrum.

公开(公告)号：DE69509166D1

公开(公告)日：1999-05-27

申请号：DE69509166

申请日：1995-05-23

Applicant: SEXTANT AVIONIQUE

Inventor： FIMA HENRI ,  LEGOUX CHRISTOPHE

IPC: G01P1/00 ,  G01P15/097 ,  G01P15/10

公开(公告)号：FR2726361A1

公开(公告)日：1996-05-03

申请号：FR9413146

申请日：1994-10-28

Applicant: SEXTANT AVIONIQUE

Inventor： FIMA HENRI ,  PEDRAZA RAMOS SYLVIE

IPC: G01C19/56

Abstract: The micro-gyrometer is designed to detect rotation around a first direction (z). It includes a plate (1) which is orthogonal to the first direction, suspended w.r.t a fixed frame (8), and excited at its resonant frequency in a second direction (x) perpendicular to the first direction (z). Rotation around the direction (z) causes vibration of the plate in a third direction (y) orthogonal to the two others (x,z). The plate has teeth (9,10) extending in the second (x) and third (y) directions. These teeth engage without contact into slots (11,12) fixed to the frame (8). Each of the teeth supports a metal coatings, which form capacitors (Cx,Cy), w.r.t similar metal coatings on the slots (11,12).

公开(公告)号：DE69112450T2

公开(公告)日：1996-04-25

申请号：DE69112450

申请日：1991-02-12

Applicant: SEXTANT AVIONIQUE

Inventor： FIMA HENRI

IPC: G01K11/20 ,  G01S7/481 ,  G01S17/95 ,  G01N21/00 ,  G01N21/64

Abstract: Using a laser generator and by excitation of energy band transitions of molecular oxygen, the fluorescence of oxygen is caused, the intensities of the induced fluorescence in two different bands is measured, the ratio between these intensities is determined and the temperature is derived from this. Over a section of significant depth (c[ tau + tau ']/2), two absorption lines (R, R') are excited which at least overlap and which respectively belong to two different Schumann-Runge bands of oxygen. The transmission line (L) of the laser generator has a very small width in comparison with that of the absorption lines and its central frequency ( omega o/2 pi ) is adjusted to be substantially in the vicinity of the maxima of the two absorption lines (R, R'). … …

公开(公告)号：FI955157A0

公开(公告)日：1995-10-27

申请号：FI955157

申请日：1995-10-27

Applicant: SEXTANT AVIONIQUE

Inventor： FIMA HENRI ,  RAMOS SYLVIE PEDRAZA

IPC: G01C19/56 ,  G01C

Abstract: The micro-gyrometer is designed to detect rotation around a first direction (z). It includes a plate (1) which is orthogonal to the first direction, suspended w.r.t a fixed frame (8), and excited at its resonant frequency in a second direction (x) perpendicular to the first direction (z). Rotation around the direction (z) causes vibration of the plate in a third direction (y) orthogonal to the two others (x,z). The plate has teeth (9,10) extending in the second (x) and third (y) directions. These teeth engage without contact into slots (11,12) fixed to the frame (8). Each of the teeth supports a metal coatings, which form capacitors (Cx,Cy), w.r.t similar metal coatings on the slots (11,12).

公开(公告)号：DE69522165D1

公开(公告)日：2001-09-20

申请号：DE69522165

申请日：1995-10-24

Applicant: SEXTANT AVIONIQUE VELIZY VILLA

Inventor： FIMA HENRI ,  PEDRAZA RAMOS SYLVIE

IPC: G01C19/56

Abstract: The micro-gyrometer is designed to detect rotation around a first direction (z). It includes a plate (1) which is orthogonal to the first direction, suspended w.r.t a fixed frame (8), and excited at its resonant frequency in a second direction (x) perpendicular to the first direction (z). Rotation around the direction (z) causes vibration of the plate in a third direction (y) orthogonal to the two others (x,z). The plate has teeth (9,10) extending in the second (x) and third (y) directions. These teeth engage without contact into slots (11,12) fixed to the frame (8). Each of the teeth supports a metal coatings, which form capacitors (Cx,Cy), w.r.t similar metal coatings on the slots (11,12).