Impact sensor capable of positioning
A sensor and sensitive film technology, applied in the field of sensors, can solve problems such as large size, inability to detect impact, inability to inspect and maintain objects, and achieve the effect of low cost, convenient production and placement
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[0014] see figure 1 and 2 , the embodiment of the present invention is provided with a base layer 1, a piezoelectric sensitive film (composed of many coaxial micro-nano fibers 3 of orthogonal polymers), a protective layer 4, an electrode assembly (including multiple pairs of electrodes 2), and signal processing device 5.
[0015] The base layer 1 is an insulating flexible material base layer, and the piezoelectric sensitive film is an orthogonal grid array film formed by interlacing coaxial micro-nano fibers 3. The piezoelectric sensitive film is arranged on the upper surface of the base layer 1, and the protective layer 4 covers the piezoelectric sensitive film. Membrane 3, each polymer micro-nano fiber 3 that constitutes the piezoelectric sensitive film has a central core 31 and an outer shell 32, the central core 31 and the outer shell 32 are coaxial, the central core 31 is a piezoelectric material such as a high molecular polymer, and the outer shell 32 is High molecular...
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