A kind of method for making of high frequency large area many primitives plane acoustic arrayTechnical field
The present invention relates to equipment technical field in water, especially a kind of method for making of high frequency large area many primitives plane acoustic array.
Background technology
Doppler velocity logs is one of naval vessel or underwater hiding-machine independent navigation equipment.Directional beam is launched in the direction all around entered at shipping agency simultaneously, utilizes the Doppler shift of echoed signal can calculate the speed of a ship or plane of ship relative to the object of reference such as seabed or water layer, thus reaches object of having the records of distance by the log.Traditional Doppler velocity logs, for producing these four wave beams, all adopts 4 independently piston-type transducers.Use multiple independently transducer, acoustic array volume, weight can be caused excessive, inconvenience is installed, and the navigation of ship can be affected, and for improving rate accuracy, the complicated velocity of sound need be carried out and compensate.At present, utilize the Doppler velocity logs of phased array only need carry out phase control emission and reception with a high frequency planar basic matrix, a transmit-receive sharing battle array completes the formation of multiple wave beam, the overall dimensions of basic matrix under water is greatly reduced, and avoids velocity of sound compensation problem.Primitive number in this high frequency planar basic matrix is generally at about 1000, and each primitive is of a size of about 2mm ~ 5mm, is interposed between tens between primitive, horizontal and vertical each 40 row left and right.Normal practice is first assembled with some primitives, and Reperfu-sion is shaping, the consistance between primitive, and the geometric position size between primitive is difficult to ensure, if there is a primitive polarity contrary, then causes high frequency planar basic matrix to scrap.
Summary of the invention
The technical problem to be solved in the present invention overcomes existing defect, a kind of method for making of high frequency large area many primitives plane acoustic array is provided, can effectively improve primitive consistance, ensure primitive arrangement position precision, prevent the situation that primitive polar orientation is different.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
The method for making of a kind of high frequency large area of the present invention many primitives plane acoustic array, comprises the following steps:
(1) mode of gummed is adopted to be fixed on frock substrate on one piece of large-area piezoelectricity pottery;
(2) by hi-precision cutting machine, piezoelectric ceramics is carried out the cutting of horizontal and vertical directions, form some primitives, utilize macromolecular material filling to fill out cutting and stitch and solidify;
(3) take off frock substrate, then size cutting is shaping as required, obtains high frequency large area many primitives plane acoustic array.
Further, in step (1), one piece of large-area piezoelectricity pottery is fixed on frock substrate by fixing epoxy glue.
Further, step first carries out horizontal direction cutting by hi-precision cutting machine in (2), solidification is filled out in the filling carrying out macromolecular material after cleaning out, then with the right-angle side of frock substrate for benchmark carries out vertical direction cutting, solidification is filled out in the filling carrying out macromolecular material after cleaning out.
Further, according to the different decoupling requirements between primitive, select different macromolecular materials to fill with and fill out.
Beneficial effect of the present invention: adopt and fix one piece of large-area piezoelectricity pottery directly cutting filling raising molecular material, precision is processed by cutting machine and is ensured, method is simple, effectively can control the geometric position of consistance between primitive and primitive arrangement, guarantee that the polarity of all primitives in plane acoustic array is consistent.
Accompanying drawing explanation
Fig. 1 is cutting schematic diagram of the present invention;
In figure, mark is described as follows:
1-piezoelectric ceramics, 2-frock substrate, 3-macromolecular material.
Embodiment
Embodiment cited by the present invention; just understand the present invention for helping; should not be construed as limiting the scope of the present invention; for those skilled in the art; without departing from the inventive concept of the premise; can also improve the present invention and modify, these improve and modification also falls in the scope of the claims in the present invention protection.
As shown in Figure 1, a kind of method for making of high frequency large area many primitives plane acoustic array, comprises the following steps:
(1) one piece of large-area piezoelectricity pottery 1 is passed through fixing epoxy glue glued adhesion on frock substrate 2;
(2) first horizontal direction cutting is carried out by hi-precision cutting machine, solidification is filled out in the filling carrying out macromolecular material 3 after cleaning out, again with the right-angle side of frock substrate 2 for benchmark carries out vertical direction cutting, solidification is filled out in the filling carrying out macromolecular material 3 after cleaning out, wherein, the cutting of level, vertical direction forms several primitives, according to the different decoupling requirements between primitive, different macromolecular materials 3 can be selected to fill with and fill out.
(3) take off frock substrate 2, then size cutting is shaping as required, obtains high frequency large area many primitives plane acoustic array.
The making utilizing one piece of large-area piezoelectricity pottery 1 to carry out high frequency large area many primitives planar array in the present invention efficiently solves performance difference problem between many primitives; The polarization time of one piece of large-area piezoelectricity pottery 1 suitably can ensure the consistance between many primitives that one piece of large-area piezoelectricity pottery 1 is formed after level, perpendicular cuts; Interval between primitive is stitched by the cutter of hi-precision cutting machine and is determined, can select the blade of suitable thickness, the effective like this interval problem solved between primitive according to designing requirement; Because one piece of large-area piezoelectricity pottery 1 is from passing through fixing epoxy glue glued adhesion at frock substrate 2 to finally taking off, the invariant position of piezoelectric ceramics 1, positive and negative two faces of piezoelectric ceramics 1 also immobilize, so the polarity of all primitives can ensure unanimously; Level or perpendicular cuts is complete fills with raising molecular material 3 immediately and solidify, the geometric position of primitive also can be consistent.According to the different decoupling requirements between primitive in this programme, different macromolecular materials 3 can be selected to fill with and to fill out.