Title:
SELF-POWERED PRESSURE SENSOR BASED ON PHENOMENON OF POST-BUCKLING
Document Type and Number:
WIPO Patent Application WO/2022/116926
Kind Code:
A1
Abstract:
The present invention belongs to the field of pressure sensors, and particularly relates to a self-powered pressure sensor based on the phenomenon of post-buckling. The self-powered pressure sensor comprises a carrier module, an electric energy storage module, a sensing information control module and a pressure sensing module, wherein the pressure sensing module comprises a base, a cover plate and a flexible piezoelectric patch; the cover plate is inserted into the base, a first elastic element is arranged between the cover plate and the base in a matching manner, and a mounting cavity is further defined between the cover plate and the base; and the flexible piezoelectric patch is arranged in the mounting cavity, the periphery of the flexible piezoelectric patch matches the mounting cavity in a limiting manner, and a second elastic element is arranged between the flexible piezoelectric patch and the cover plate in a matching manner. The self-powered pressure sensor provided in the present invention is inspired by providing a power supply by means of high-frequency pressure deformation, and compared with a traditional piezoresistive sensor, a piezoelectric sensor and a capacitance sensor, the self-powered pressure sensor has the advantages of low power consumption, flexibility, no need for adding a power supply, etc., and the present invention has great application value in the field of intelligent robots and bioengineering, such as in self-energy flexible patches for intelligent wearable apparatuses.
Inventors:
JIAO PENGCHENG (CN)
OUYANG FAN (CN)
YANG YANG (CN)
LI WENTAO (CN)
OUYANG FAN (CN)
YANG YANG (CN)
LI WENTAO (CN)
Application Number:
PCT/CN2021/133829
Publication Date:
June 09, 2022
Filing Date:
November 29, 2021
Export Citation:
Assignee:
UNIV ZHEJIANG (CN)
International Classes:
H02N2/18
Foreign References:
| CN112600460A | 2021-04-02 | |||
| CN110353432A | 2019-10-22 | |||
| CN210201745U | 2020-03-27 | |||
| CN111426411A | 2020-07-17 | |||
| JP2018206528A | 2018-12-27 |
Attorney, Agent or Firm:
HANGZHOU QIUSHI PATENT OFFICE CO., LTD. (CN)
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