CN-121977726-A - Bionic positioning sensor and detection device

CN121977726ACN 121977726 ACN121977726 ACN 121977726ACN-121977726-A

Abstract

The application discloses a bionic positioning sensor and a detection device, which relate to the field of sensors and comprise a base, wherein a mounting hole is formed in the center of the base, a plurality of piezoresistive sensing units are arranged on the upper surface of the base and are uniformly distributed around the periphery of the mounting hole, the piezoresistive sensing units are arranged in a radial extending mode of the base and are electrically connected with a multi-channel lead circuit to form a resistance detection loop, gaps are formed between two adjacent piezoresistive sensing units and are distributed in a non-linear mode in the radial direction, a movable rod unit is inserted into the mounting hole at the bottom and can deviate relative to the base to squeeze the piezoresistive sensing units, the external disturbance direction is converted into the asymmetric distribution of multi-channel resistance signals, direction characteristic acquisition is achieved, meanwhile, the non-linear gaps eliminate blind areas, and 360-degree omni-directional, continuous and high-resolution identification of disturbance sources is achieved.

Inventors

NIU SHICHAO
MENG XIANCUN
HAN ZHIWU
DING HANLIANG
CHEN YOU
CHEN SHENGQI
ZHANG YUFAN

Assignees

吉林大学

Dates

Publication Date: 20260505
Application Date: 20260403

Claims (10)

1. A biomimetic positioning sensor, characterized in that it comprises: the device comprises a base, wherein a mounting hole is formed in the center of the base; The piezoresistance sensing units are arranged on the upper surface of the base, are circumferentially and uniformly distributed along the periphery of the mounting hole, are arranged along the radial extension of the base and are electrically connected with the multichannel lead circuit to form a resistance detection loop, and are provided with gaps which are distributed in a non-linear manner along the radial direction; And the bottom of the movable rod unit is inserted into the mounting hole and can deviate relative to the base so as to squeeze the piezoresistance sensitive unit.
2. The biomimetic positioning sensor of claim 1, wherein the piezoresistive sensing unit comprises: the center of the first fan circumferential seam is positioned on the movable rod unit; the second fan circumferential seam is positioned between the first fan circumferential seam and the movable rod unit, is parallel to the first fan circumferential seam and concentric with the first fan circumferential seam, and is communicated with the first fan circumferential seam; and the conductive layer is arranged in the first fan circumferential seam and the second fan circumferential seam.
3. The biomimetic positioning sensor of claim 2, wherein the first fan circumferential seam and the second fan circumferential seam are each V-shaped.
4. The biomimetic positioning sensor according to claim 1, further comprising: And the capacitor is arranged in the movable rod unit and is electrically connected with the multichannel lead circuit to form a capacitance detection loop.
5. The biomimetic positioning sensor of claim 4, wherein the movable rod unit comprises: A hair pole; The movable base is sleeved at the bottom of the hair shaft, one part of the movable base is positioned in the mounting hole so as to deviate along with the hair shaft and press the base, and the capacitor is positioned in the movable base and is positioned at the periphery of the hair shaft.
6. The bionic positioning sensor according to claim 5, wherein a hollow cavity is arranged in the capillary rod, and the hollow cavity is a conical hollow cavity with a wide upper part and a narrow lower part.
7. The biomimetic positioning sensor of claim 5, wherein the capacitor comprises: the fixed spiral electrode is positioned at the periphery of the hair pole and is connected with the bottom wall of the base; and the movable spiral electrode assembly is positioned at the periphery of the hair shaft and connected with the hair shaft and the movable base so as to overlap the fixed spiral electrode when the hair shaft and the movable base deviate.
8. The biomimetic positioning sensor of claim 7, wherein the movable spiral electrode assembly comprises: The outer spiral electrode is arranged on the inner wall of the movable base and is positioned at the periphery of the fixed spiral electrode; the inner spiral electrode is arranged on the outer wall of the hair pole and is positioned at the inner side of the fixed spiral electrode.
9. The biomimetic positioning sensor of claim 7, wherein the base comprises: The flexible base is sleeved on the periphery of the movable rod unit; the mounting hole and the piezoresistive sensitive unit are both positioned on the flexible base; the fixed base is arranged at the bottom of the flexible base and shields the mounting hole; the fixed spiral electrode is arranged on the positioning ring, is partially positioned in the positioning ring and is partially positioned outside the positioning ring.
10. A detection device comprising a biomimetic positioning sensor according to any one of claims 1-9.

Description

Bionic positioning sensor and detection device Technical Field The application relates to the technical field of sensors, in particular to a bionic positioning sensor and a detection device. Background With the development of intelligent robots, environment monitoring and security systems, higher requirements are put forward on sensors capable of achieving disturbance source direction identification in complex environments. The existing bionic sensor structural design is generally difficult to distinguish the spatial direction of disturbance, particularly, detection blind areas easily appear in the full circumferential range, and 360-degree omnidirectional disturbance source identification is difficult to realize. Accordingly, the prior art is still in need of improvement and development. Disclosure of Invention The application aims to solve the technical problems that blind areas exist in disturbance direction identification in the prior art and 360-degree all-direction identification is difficult to realize. The technical scheme adopted for solving the technical problems is as follows: a biomimetic positioning sensor, comprising: the device comprises a base, wherein a mounting hole is formed in the center of the base; The piezoresistance sensing units are arranged on the upper surface of the base, are circumferentially and uniformly distributed along the periphery of the mounting hole, are arranged along the radial extension of the base and are electrically connected with the multichannel lead circuit to form a resistance detection loop, and are provided with gaps which are distributed in a non-linear manner along the radial direction; And the bottom of the movable rod unit is inserted into the mounting hole and can deviate relative to the base so as to squeeze the piezoresistance sensitive unit. The bionic positioning sensor, wherein the piezoresistive sensing unit comprises: the center of the first fan circumferential seam is positioned on the movable rod unit; the second fan circumferential seam is positioned between the first fan circumferential seam and the movable rod unit, is parallel to the first fan circumferential seam and concentric with the first fan circumferential seam, and is communicated with the first fan circumferential seam; and the conductive layer is arranged in the first fan circumferential seam and the second fan circumferential seam. The bionic positioning sensor is characterized in that the first fan circumferential seams and the second fan circumferential seams are V-shaped. The bionic positioning sensor, wherein it further comprises: And the capacitor is arranged in the movable rod unit and is electrically connected with the multichannel lead circuit to form a capacitance detection loop. The bionic positioning sensor, wherein the movable rod unit includes: A hair pole; The movable base is sleeved at the bottom of the hair shaft, one part of the movable base is positioned in the mounting hole so as to deviate along with the hair shaft and press the base, and the capacitor is positioned in the movable base and is positioned at the periphery of the hair shaft. The bionic positioning sensor is characterized in that a hollow cavity is arranged in the hair shaft, and the hollow cavity is a conical hollow cavity with a wide upper part and a narrow lower part. The bionic positioning sensor, wherein the capacitor comprises: the fixed spiral electrode is positioned at the periphery of the hair pole and is connected with the bottom wall of the base; and the movable spiral electrode assembly is positioned at the periphery of the hair shaft and connected with the hair shaft and the movable base so as to overlap the fixed spiral electrode when the hair shaft and the movable base deviate. The bionic positioning sensor, wherein the movable spiral electrode assembly comprises: The outer spiral electrode is arranged on the inner wall of the movable base and is positioned at the periphery of the fixed spiral electrode; the inner spiral electrode is arranged on the outer wall of the hair pole and is positioned at the inner side of the fixed spiral electrode. The bionic positioning sensor, wherein the base comprises: The flexible base is sleeved on the periphery of the movable rod unit; the mounting hole and the piezoresistive sensitive unit are both positioned on the flexible base; the fixed base is arranged at the bottom of the flexible base and shields the mounting hole; the fixed spiral electrode is arranged on the positioning ring, is partially positioned in the positioning ring and is partially positioned outside the positioning ring. A detection device comprising a biomimetic positioning sensor as defined in any one of the preceding claims. The bionic positioning sensor has the beneficial effects that through arranging the movable rod units capable of shifting at the center of the base and uniformly arranging the piezoresistive sensitive units extending in the radial direction at the peripher