Planar transducer array and multi-mode phase control device

A transducer array and planar array technology, which is applied in the direction of measuring devices, instruments, and sound wave re-radiation, can solve problems such as inability to be fast at the same time, and achieve the effects of resource assessment integration, flexible configuration, and accurate investigation

Active Publication Date: 2019-05-21
INST OF ACOUSTICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The current fishery resource survey, monitoring and evaluation equipment and instruments split-beam and multi-beam modes are used independently in t

Method used

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  • Planar transducer array and multi-mode phase control device
  • Planar transducer array and multi-mode phase control device
  • Planar transducer array and multi-mode phase control device

Examples

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Example Embodiment

[0037] Example 1:

[0038] Combine figure 1 A schematic diagram of a planar array, defining the tap of the first quadrant as Z1, the tap of the second quadrant as Z2, the tap of the third quadrant as Z3, the tap of the fourth quadrant as Z4, and the taps of the fifth zone of the horizontal linear array as X1, X2 ,...XM-1, XM, as shown in Figure 2(a); the taps of the sixth area of ​​the vertical linear array are Y1, Y2,..., YM-1, YM, as shown in Figure 2(b). 1 common ground tap, 1 central launch tap; 2M+6 taps in total, where M is determined by the beam width formed by a linear array. Assuming that the beam width formed by the linear array is 5°, the beam width perpendicular to the straight line is 50°, then M=20, the number of primitives perpendicular to the straight line is 2, and a total of 1 taps are connected, then the total number of taps of the planar array Then there are 46 emission taps composed of 4 primitives with a central emission primitive of 2×2, and its transmitting

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Abstract

The invention discloses a planar transducer array and a multi-mode phase control device. The planar transducer array includes a circular planar array and a plurality of taps. The circular plane arrayis divided into six areas including a fifth area formed by two rows of transverse elements in the middle, a sixth area formed by two columns of longitudinal elements in the middle, a first area on theupper right, a second area on the upper left, a third area on the lower left and a fourth area on the lower right which are formed by dividing the circular plane array by the fifth area and the sixtharea. The first area, the second area, the third area and the fourth area are respectively provided with one tap; every two elements in the vertical direction of the fifth area are provided with onetap, and M taps are arranged in total; every two parallel elements in the sixth area are provided with one tap, and M taps are arranged in total; and one central emission tap is arranged at the intersection center of the fifth area and the sixth area.

Description

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Claims

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Application Information

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Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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