Conformal flexible mechanical sensing network and printing preparation method thereof

A conformal flexible mechanics and sensor network technology, applied in the field of flexible sensors, can solve problems such as insufficient fit, achieve accurate alignment placement, improve sensitivity, and solve the effects of nonlinear mechanical response

Pending Publication Date: 2021-12-21
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiency in the prior art that the degree of fit to irregular and complex curved surfaces is not high enough, and to provide a conformal flexible mechanical sensor network that is well applicable to complex curved surfaces and its printing preparation method

Method used

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  • Conformal flexible mechanical sensing network and printing preparation method thereof
  • Conformal flexible mechanical sensing network and printing preparation method thereof
  • Conformal flexible mechanical sensing network and printing preparation method thereof

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Embodiment 1

[0043] Such as figure 1 As shown, this embodiment provides a conformal flexible mechanical sensor network, including a flexible layer 1 and a conformal force-sensitive conductive layer 4;

[0044] The flexible layer 1 is composed of more than one segmented flexible layer; the shape of the segmented flexible layer is consistent with the shape of the segmented plane approximately expanded by the target curved surface; the conformal force-sensitive conductive layer 4 includes a force-sensitive sensing unit ; One side surface of the flexible layer 1 is the first surface; the conformal force-sensitive conductive layer 4 is provided on a partial area of ​​the first surface.

[0045] The flexible layer 1 described in this embodiment can be a flexible material such as leather; the surface of the object to be measured on which the sensor network needs to be installed is the target curved surface. The target surface is approximately expanded into more than one split plane according to ...

Embodiment 2

[0055] Such as Figure 5 As shown, this embodiment provides a method for preparing a sensor network, including the following steps:

[0056] S1, expand the target surface into more than one split plane by the method of approximate expansion, which is denoted as the approximate expansion plane;

[0057] S2, cutting the flexible material according to the shape of the approximate unfolded plane to make a flexible layer; one side surface of the flexible layer is the first surface; the flexible layer includes more than one segmented flexible layer; the shape of the segmented flexible layer corresponds to The shape of the split plane is the same;

[0058] S3, according to the gradient screen printing process, a conformal force-sensitive conductive layer is printed on the first surface using a carbon nanomaterial conductive paste; the conformal force-sensitive conductive layer includes a force-sensitive sensing unit; the gradient screen refers to At the corresponding position of th...

Embodiment 3

[0069] This embodiment will briefly describe the preparation method of sensory web printing in combination with spheres.

[0070] The approximate expansion of the sphere by the Gaussian curvature formula is as follows Figure 6 c) Multiple split planes of the shown pattern, all split planes are recorded as approximate unfolded planes;

[0071] Cutting the flexible material according to the approximate shape of the unfolded plane to make a flexible layer; one side surface of the flexible layer is the first surface;

[0072] according to Figure 7 As shown in , the segmented flexible layer of the sphere is laid out in the way that the extremes of the sphere are connected, and the force-sensitive sensing unit is printed on the first plane;

[0073] Prepare the base layer with ring-shaped interdigitated silver electrodes for printing; connect the ring-shaped interdigitated silver electrodes and the force-sensitive sensing unit through connecting wires; The base layer of the ann...

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Abstract

The invention discloses a conformal flexible mechanical sensing network and a printing preparation method thereof. The conformal flexible mechanical sensing network comprises a flexible layer and a conformal force-sensitive conductive layer, wherein the flexible layer is composed of more than one segmented flexible layer; the shape of the segmentation flexible layer is consistent with the shape of a segmentation plane which is approximately expanded by a target curved surface; the conformal force-sensitive conductive layer comprises a force-sensitive sensing unit; one side surface of the flexible layer is a first surface; and the conformal force-sensitive conductive layer is arranged on the first surface. According to the method, the shape of the flexible layer is consistent with the shape of the plane after the target curved surface is approximately unfolded, and an acquisition circuit is designed on the flexible layer; segmented planes of the flexible layer can be well overlapped with the target curved surface after being spatially folded back so that the fitting degree of the sensor arranged on the flexible layer and the surface of the object to be measured is greatly improved.

Description

technical field [0001] The invention relates to the field of flexible sensors, in particular to a conformal flexible mechanical sensor network and a printing preparation method thereof. Background technique [0002] Traditional flexible sensor preparation methods are usually suitable for regular curved surfaces, but the degree of fit to irregular curved surfaces is not high enough, resulting in large acquisition errors. [0003] For example, the patent application whose publication number is CN111232914A discloses a flexible graphene joint sensor and its manufacturing methods, wherein the preparation method of the flexible sensor includes a transfer step, and the preparation operation steps are cumbersome; and although the application solves the problem of graphene The wire used in the joint sensor does not have the problem of extensibility, which improves the extensibility of the sensor, but if the surface shape of the object is a complex curved surface, it is difficult to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/18H05K3/12
CPCG01L1/18H05K3/1216
Inventor 魏大鹏
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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