Resistance-type flexible three-dimensional force sensor based on spring-shaped sensing unit
A sensitive unit, spring-like technology, applied in the field of resistive flexible three-dimensional force sensors, can solve the problems of affecting the force-sensitive characteristics of the sensitive unit, weakening the elasticity, etc., and achieve the effect of simple arrangement, good flexibility, and error reduction.
Pending Publication Date: 2022-03-01
SHANDONG UNIV OF SCI & TECH
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However, as the filling amount of conductive particles increases, the Young's modulus of the sensitive unit increases, and the stretchability decreases, which in turn affects the force-sensing characteristics of the sensitive unit. Therefore, the appropriate filling amount of conductive particles determines the performance of the sensitive unit, which requires Researchers continue to experiment and explore
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[0030] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0031] Such as figure 1 As shown, a resistive flexible three-dimensional force sensor based on a spring-shaped sensitive unit is composed of a lower electrode plate layer, a sensitive unit layer, an upper electrode plate layer, and a raised surface layer 7 from bottom to top.
[0032] Among them, such as figure 2 As shown in (a), the lower electrode plate layer includes the lower flexible substrate 1 and the lower electrode plate 2 from bottom to top, as figure 2 Shown in (b), the upper electrode plate layer includes an upper electrode plate 4 and an upper flexible substrate 5 from bottom to top; as figure 2 As shown in (c), it reflects the distribution of the upper and lower electrode plates of the resistive flexible three-dimensional force sensor; the upper electrode plate 5 and the lower electrode plate 2 have the s...
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Abstract
The invention discloses a resistive flexible three-dimensional force sensor based on a spring-shaped sensing unit. The resistive flexible three-dimensional force sensor is sequentially composed of a lower electrode plate layer, a sensing unit layer, an upper electrode plate layer and a surface bulge layer from bottom to top, the upper electrode plate layer comprises a lower flexible substrate and a lower electrode plate, and the upper electrode plate layer comprises an upper electrode plate and an upper flexible substrate; each of the upper electrode plate and the lower electrode plate comprises four square structures in 2 * 2 arrangement, and each square structure is led out through a wire; the sensing unit layer comprises four sensing units arranged in a 2 * 2 mode, each sensing unit comprises a spring-shaped structure and a cylindrical supporting column, tiny force can be sensed sensitively, and good compression and tensile performance is achieved; the surface protruding layer is of a regular quadrangular frustum pyramid structure, so that micro force can be amplified, and the deformation of the sensing unit is increased. The sensor provided by the invention can realize three-dimensional force detection by adopting a unique three-dimensional structure, and can be applied to the fields of environmental monitoring, electromechanical monitoring, agricultural production, aerospace military and the like.
Description
technical field [0001] The invention relates to the technical field of flexible tactile sensors, in particular to a resistive flexible three-dimensional force sensor based on a spring-shaped sensitive unit. Background technique [0002] The three-dimensional force sensor realizes the perception of the basic characteristics of the external environment or objects by collecting information such as pressure, vibration, position and temperature. In practical applications, in order to satisfy non-planar objects, flexible three-dimensional force sensors are usually pasted on curved surfaces to obtain more accurate three-dimensional force information. In order to monitor information such as environmental weather, machine failure, and human body signs, 3D force sensors have attracted more and more attention from researchers. [0003] Among them, the resistive flexible three-dimensional force sensor has the advantages of high sensitivity, strong stretchability, high spatial resolutio...
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CPCG01L5/1627
Inventor 黄梁松张坤张鹏姚永杰林格羽隋华磊王刚强步晓飞王硕黄鑫
Owner SHANDONG UNIV OF SCI & TECH