A Highly Integrated Self-Powered Pressure Sensor

A pressure sensor, a high-integration technology, applied in the direction of current collectors, the measurement of the force of the piezoelectric device, the piezoelectric effect/electrostrictive or magnetostrictive motor, etc., can solve the problem that the sensor relies on the circuit to work and supply power, etc. problem, to achieve the effect of small internal resistance and good sensitivity

Active Publication Date: 2019-07-16
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the application of IoT sensor node technology is limited by the problem of sensors relying on external complex processing circuits and the problem of power supply for circuit work.

Method used

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  • A Highly Integrated Self-Powered Pressure Sensor
  • A Highly Integrated Self-Powered Pressure Sensor
  • A Highly Integrated Self-Powered Pressure Sensor

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, rather than all embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work, all belong to the protection scope of the present invention .

[0026] figure 1 A schematic structural diagram of a highly integrated self-powered pressure sensor provided by an embodiment of the present invention, figure 2 A structural schematic diagram of a piezoelectric sheet in a highly integrated self-powered pressure sensor provided for an embodiment of the present invention, as shown in figure...

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Abstract

The invention provides a self-powered pressure sensor possessing a high integration degree. The pressure sensor comprises a packaging shell. A cylinder of a vertical through hole is arranged in the packaging shell. The cylinder is mainly formed by a pressure sensing unit and a piezoelectric energy harvester unit which are stacked up and down. A non-polarized isolation layer is arranged between the pressure sensing unit and the piezoelectric energy harvester unit. An energy management module and a signal processing module are arranged in the vertical through hole. An output electrode of the piezoelectric energy harvester unit is electrically connected to an input terminal of the energy management module. An output electrode of the pressure sensing unit is electrically connected to an input terminal of the signal processing module. An output terminal of the energy management module is electrically connected to a power supply terminal of the signal processing module. The self-powered pressure sensor possessing the high integration degree can directly output a digital signal, can work autonomously, does not bring any burden for an external circuit and is suitable for the pressure sensing field.

Description

technical field [0001] The invention relates to the technical field of pressure sensors, in particular to a self-powered pressure sensor with high integration. Background technique [0002] Pressure sensor is the most commonly used sensor in industrial practice. It is widely used in various industrial automatic control environments, involving water conservancy and hydropower, railway transportation, intelligent buildings, production automatic control, aerospace, military industry, petrochemical, oil wells, electric power, ships, machine tools , pipeline and many other industries. At the same time, sensor nodes of the Internet of Things are widely used. By improving the structure and function of sensors, making sensors more suitable for sensor nodes of the Internet of Things is a hot topic in the field of sensor research. [0003] At present, conventional pressure sensors or other sensors more or less need corresponding external power supply or internal battery power supply,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/32G01L1/16
CPCG01L1/16G08C17/02H02J7/32H02J7/34H02N2/18
Inventor 冀健龙桑胜波申治中解胜东葛阳菅傲群段倩倩张强张斌珍廉自生薛晨阳张文栋
Owner TAIYUAN UNIV OF TECH
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