CN1700037A

CN1700037A - Translational device in satellite optical remote sensing equipment

Info

Publication number: CN1700037A
Application number: CNA2005100267210A
Authority: CN
Inventors: 华建文; 代作晓; 陶津平
Original assignee: Shanghai Institute of Technical Physics of CAS
Current assignee: Shanghai Institute of Technical Physics of CAS
Priority date: 2005-06-14
Filing date: 2005-06-14
Publication date: 2005-11-23
Anticipated expiration: 2025-06-14
Also published as: CN100344945C

Abstract

The invention relates to a parallel move device of Fourier spectrograph's flat reflection mirror used as satellite optical remote sensing device which comprises parallel move frame, reed, synchronizing plate, base plate, quivering baffle rob, clamp plate and multidimensional adjustment mould. It uses door frame construction. Adjustment mould is used to compensate and operate deviation. Quivering baffle rob is used to diminish the vibration of elasticity system vibration. Reed is made by beryllium bronze while other parts are made by lightweight material. Parallel move frame's movement is parallel move by elastic bending four reeds.

Description

Translation device in the satellite optical remote sensing instrument

Technical field

The present invention relates to the precise motion mechanism in the satellite optical remote sensing instrument, be meant that specifically the motion for the plane mirror that keeps big visual field infrared spectrometer is the nothing friction translation device of translation.

Background technology

Fourier spectrometer for adopting plane mirror as phase modulation component will obtain high spectral resolution, and keeping the motion of plane mirror is that translation is very important; The phase modulation component of spatial Fourier spectrometer is mainly plane mirror and angle mirror at present.FIRST, ( Http:// esto.nasa.gov/conferences/estc-2002/Papers/B4P2 (Mlynczak) .pdf) GIFTS ( Http:// nmp.jpl.nasa.gov/eo3/TECHNOLOGY/instrument.html), ABS ( Http:// goespoes.gsfc.nasa.gov/goesr_industry.htm) and CrIS ( Http:// npoesslib.ipo.noaa.gov/Released_papers/SPIE_mechdesign_a .doc) adopt the former, MIPAS ( Http:// envisat.esa.int/instruments/mipas/descr/concept.html) and IASI ( Http:// smsc.cnes.fr/IASI/GP_instrument.htm) the employing latter.Serve the spatial Fourier spectrometer of aerological sounding, require quick detection, thereby use planar array detector; Aerological sounding becomes fast big visual field test like this.Use the phase modulation component of plane mirror as spectrometer, laterally moving of level crossing do not influence the spectral measurement precision, and plane mirror is little than the corner reflector quality simultaneously, is easy to motion control.The phase modulation component mode of motion of spatial Fourier spectrometer has rotary oscillation formula and flatly moving type at present.The size of flatly moving type and quality are little than the rotary oscillation formula, thereby the mechanism of flatly moving type is desirable index glass mechanism in theory.We adopt two bearings to support the spectrometer index glass mechanism of flatly moving type in " 863 " problem " research of space atmospheric environment interfere type detection instrument ".Bearing adopts the accurate linear roller bearing of the LM type of Japanese THK company, the diameter run-out of this roller bearing is 8 microns (product descriptions " THK LM SYSTEM rectilinear motion series ", THKCO., LTD, No.100-1CT, P.134-139), the two bearings spacing is less than 100 millimeters, the inclination amount of jitter of motion far can not satisfy the space SEQUENCING VERTICAL and survey the requirement of Fourier spectrometer to the index glass translation greater than 80 microradians.In addition, for the optical instrument that use in the space, elimination is lubricated and wearing and tearing are very important.Because the maintenance of lubricant in the space is a very big trouble.And lubricant leaks and can pollute optical element.For high-precision moving component, wearing and tearing will be shortened the serviceable life of spectrometer greatly.

Summary of the invention

The objective of the invention is plane reflection index glass for the spatial Fourier spectrometer provides a kind of lubricated Ji that need not, and does not have the translation device of wearing and tearing.This device also can be used for other occasion of need not having the friction translation.

Translation device of the present invention comprises: translation frame 6, four reeds 5, two groups of synchronous plates 4, substrate 1, four flutter preventing rods 3, two lower platens 7 and four multidimensional adjustment modules 2.

Each is made up of said four multidimensional adjustment modules 2 one group of top board 8, L pattern piece 13,

housing screw

9,11 and a

flexible member

10,12, and multidimensional adjustment module 2 is in order to the compensation machining deviation.

About four reeds 5 are divided into two groups, the one end is individually fixed in outside, translation frame 6 relative both sides by lower platen 7 by screw, and four angle points of adjacent translation frame 6; The other end by four groups of top board 8 clampings, is connected respectively to by housing screw 9 and flexible member 10 on the side plate of L pattern piece 13 respectively.Substrate 1 is spirally connected by the base plate of housing screw 11 and flexible member 12 and L pattern piece 13.Two groups of synchronous plates 4 are held on the middle part of two groups of reeds 5 respectively, and compress by screw and reed, and its effect is to make respectively to organize the reed synchronized movement, reduce disturbing influence.Flutter preventing rod 3 is positioned at by the reed, and two ends are supported between translation frame 6 and L pattern piece 13 base plates by silicon rubber seat ring respectively.Whole translation device is a doorframe structure, as shown in Figure 1 and Figure 2.

The translation of translation frame 6 is a kind of plane rockings, is to realize by the elastic bending deflection of four reeds 5.The direction of driving force F is the normal direction on lower platen 7 planes on the translation frame, and shown in Fig. 1 arrow, application point is the geometric center by the translation frame.

The translation frame is used to support interferometer index glass and linear motor rotor, thereby has some connecting holes and the back side has lightweight structure (omitting among the figure).

Advantage of the present invention is:

The method that adopts Precision Machining and micro-adjusting mechanism to combine makes the motion of translation frame near translation.Adopt synchronous plate to make reed deform in same pace in the group, uses four flutter preventing rods to regulate the prestress of each reed, these two kinds of measures can reduce because foozle causes structure is not absolute symmetry and cause inherent dynamic strain to tremble factor thus.Adopt the silicon rubber seat ring to support flutter preventing rod, absorb the little vibration energy of reed in motion process, make that motion is more steady to introduce damping.This translation device precision height need not to lubricate, and not wearing and tearing are fit to the space and use.

Description of drawings

Fig. 1 be translation device schematic perspective view.

Fig. 2 is the side view of translation device.

Fig. 3 is an adjustment structure synoptic diagram in the translation device.

Embodiment

Be example with index glass translation device in No. four SEQUENCING VERTICAL detection instruments of wind and cloud below, in conjunction with the accompanying drawings the specific embodiment of the present invention be described in further detail:

Translation frame 6, lower platen 7, substrate 1, synchronous plate 4, multidimensional adjustment module 2 and flutter preventing rod 3 all adopt the duralumin material.Reed 5 adopts beryllium-bronze material, and its length, width, thickness, mechanics and physical characteristics are identical, and be smooth fully under free state.Multidimensional adjustment module 2 is made up of one group of top board 8, L pattern piece 13,

housing screw

9,11 and a

flexible member

10,12, and multidimensional adjustment module 2 is the deviations that produce in order in the compensation translation device component processing process.

Reed 5 is connected with translation frame 6: about four reeds 5 are divided into two groups, the one end is affixed on respectively on the outside surface of the translation frame left and right sides, and adjacent angle point, again with lower platen 7 horizontal being affixed on the reed 5, make the long limit of lower platen 7 parallel simultaneously with translation frame 6 upper surfaces, the screw of screwing on makes lower platen 7, reed 5 and translation frame affixed, sees Fig. 1.

Synchronous plate 4 is connected with reed 5: synchronous plate has four, and two is one group, vertical with reed, with screw two reeds is clamped between two synchronous plates.Notice that synchronous plate will be positioned at the reed centre, and with the translation frame on plane parallel.

Flutter preventing rod 3, translation frame 6 are connected with L pattern piece 13: flutter preventing rod 3 has four, is uniformly distributed on four angle points of translation frame 6, and two is supported with the rubber seat ring.The rubber seat ring is embedded in respectively in the bottom plate hole of translation frame and L pattern piece 13.Admitting the hole of flutter preventing rod top rubber seat ring is screwing through hole.Regulate the elasticity of each flutter preventing rod by this hole with screw.

The connection of substrate 1 and L pattern piece 13: see Fig. 3, housing screw 11 links to each other the base plate of substrate with L pattern piece, and therebetween has elastic component 12.Should make four L pattern interblocks apart from equating that bottom surface is in same plane in the installation process, the front end face of front and back two L patterns piece is in the same plane as far as possible, and each surface of other correspondence is parallel.Flexible member is big rigidity saucer washer.

The connection of the other end of top board 8, L pattern piece 13 and reed 5: see Fig. 3, top board has eight, and two is one group, and housing screw 9 is fixed with the side plate of top board, reed, top board, flexible member and L pattern piece successively.The bottom line of all top boards of installation requirement is positioned at same plane, and this plane equates with the distance of translation frame upper edge to synchronous plate to the distance between the synchronous plate.Flexible member is a saucer washer.

In a word, four reeds 5 will keep strict parallel during installation; Four L pattern piece 13 lower planes are positioned at same plane; The plane is concordant with lower platen 7 coboundarys on the translation frame 6; Four reeds 5 are perpendicular to plane on four L pattern piece 13 lower planes and the translation frame 6.About two groups of reeds with Z axle Rotate 180 ° symmetric arrangement.

After this translation device connects with interferometer index glass and drive motor, the movement load 700g of this translation device.Tilt less than 3 rads at the 10mm stroke.

Claims

1. the translation device in the satellite optical remote sensing instrument comprises: a translation frame (6), four reeds (5), two groups of synchronous plates (4), a substrate (1), four flutter preventing rods (3), two lower platens (7) and four multidimensional adjustment modules (2); It is characterized in that:

Each is made up of said four multidimensional adjustment modules (2) one group of top board (8), a L pattern piece (13), housing screw (9,11) and flexible member (10,12);

About four reeds (5) are divided into two groups, the one end is individually fixed in relative two sides of translation frame (6) outside by lower platen (7) by screw, and four angle points of adjacent translation frame (6);

The other end is spirally connected by the side plate of housing screw (9) with L pattern piece (13) respectively respectively by four groups of top boards (8) clamping, has elastic component between the side plate of top board (8) and L pattern piece (13) is spirally connected (10);

Substrate (1) is spirally connected by the base plate of housing screw (11) with L pattern piece (13), has elastic component between the base plate of substrate (1) and L pattern piece (13) (12);

Two groups of synchronous plates (4) are held on the middle part of two groups of reeds (5) respectively, and compress by screw and reed;

Flutter preventing rod (3) is positioned at by the reed, and two ends are supported between translation frame (6) and the L pattern piece 13 by silicon rubber seat ring respectively; Whole translation device is the doorframe structure of translation frame plane rocking.

2. according to the translation device in a kind of satellite optical remote sensing instrument of claim 1, it is characterized in that: said translation frame (6), lower platen (7), top board (8), substrate (1), synchronous plate (4), multidimensional adjustment module (2) and flutter preventing rod (3) all adopt the duralumin material; Reed (5) adopts beryllium-bronze material.