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Wireless Flexible Microstrip Patch Antenna Sensor Array for Crack and Strain Monitoring in Metal Structures

A technology of sensor arrays and patch antennas, which is applied to antenna arrays, antenna arrays, antennas, etc. that are energized separately, can solve the problems that structural cracks and strains cannot be monitored at the same time, and achieve large-scale monitoring, large array element size, Linking Simple Effects

Active Publication Date: 2021-07-23
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, none of the above-mentioned technologies can monitor structural cracks and strains at the same time.

Method used

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  • Wireless Flexible Microstrip Patch Antenna Sensor Array for Crack and Strain Monitoring in Metal Structures
  • Wireless Flexible Microstrip Patch Antenna Sensor Array for Crack and Strain Monitoring in Metal Structures
  • Wireless Flexible Microstrip Patch Antenna Sensor Array for Crack and Strain Monitoring in Metal Structures

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Embodiment Construction

[0031] In order to make the content and technical solutions of the present invention clearer, the principles and specific implementation methods of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] Such as figure 1 As shown, the wireless flexible patch antenna sensor array for metal structure crack and strain monitoring of the present invention includes a measuring patch antenna array 100 and a signal transmitting and receiving patch antenna 200, which are connected by transmission feeders 300 of different lengths. Among them, the measurement patch antenna array is used to monitor the crack and strain of the metal structure, and the transmission feeders with different lengths are used to distinguish the signals of each measurement patch antenna. The measurement patch antenna array 100 includes a plurality of crack monitoring array elements 101 and strain monitoring array elements 103 distributed in an array,...

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Abstract

The invention discloses a wireless flexible patch antenna sensor array for metal structure crack and strain monitoring, which includes a signal sending and receiving patch antenna and a measuring patch antenna array; the measuring patch antenna array includes a plurality of distributed in an array The crack monitoring array element and the strain monitoring array element are connected to the signal sending and receiving patch antenna through delay transmission feeders of different lengths; the strain monitoring array element is evenly distributed in the gap of the crack monitoring array element; the lower matrix of the strain monitoring array element has its own Ground plate; signal transceiver patch antenna and external equipment for data communication. The invention overcomes the shortcomings of the traditional patch antenna sensor with single monitoring function and small monitoring range, can meet the requirements of simultaneously monitoring metal structure cracks and strains, and can be well conformal to complex surfaces to be tested, and can even be used for vertical metal structures. Structural monitoring meets monitoring needs in various scenarios. At the same time, the sensor array has good scalability.

Description

technical field [0001] The invention relates to the field of metal structure crack and strain monitoring, in particular to a wireless flexible microstrip patch antenna sensor array design for metal structure crack and strain monitoring. Background technique [0002] Compared with other engineering structures, metal structures have the advantages of stable quality, safety and reliability, high strength, light weight and high degree of manufacturing industrialization, and are now widely used in various fields of production and life. It is particularly important to ensure that the metal structure is in a healthy state. Statistics show that 50%-90% of the metal structure damage is due to cracks and strains. In order to ensure the safe operation of the metal structure and prolong its life, it is necessary to monitor the health of the metal structure in order to grasp the safety status of the structure in real time. [0003] After decades of development, structural health monitor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B15/06G01N22/00H01Q21/06H01Q1/48H01Q1/50
CPCG01B15/06G01N22/00H01Q1/48H01Q1/50H01Q21/065
Inventor 刘志平李润发黄传海余汉锦
Owner WUHAN UNIV OF TECH
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