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Capacitive hydrogen sensor

A sensor, capacitive technology, applied in the field of capacitive hydrogen sensors, can solve the problems of low sensitivity, high temperature, high power consumption, etc., and achieve the effect of improving measurement precision and shortening response time

Inactive Publication Date: 2019-12-20
安徽伯华氢能源科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to solve the problems of low sensitivity, high temperature, high power consumption, and potential safety hazards in the existing technology

Method used

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] It should be noted that, when an element is referred to as being “mounted on”, “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

[0028] It should also be noted that the orientation terms such as left, right, up, and down in the embodiments of the present invention are only relative concepts or refer to the normal use state of the produ...

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Abstract

The invention provides a capacitive hydrogen sensor, which comprises a filtering protection layer, a hydrogen sensing layer, a deformation transmission layer, a capacitor and a substrate, wherein thefiltering protection layer is arranged outside the hydrogen sensing layer, and is used for protecting the hydrogen sensing layer from being impacted and filtering air dust particles; the hydrogen sensing layer is arranged between the filtering protection layer and the deformation transmission layer, and is used for deforming the structure thereof after absorbing a hydrogen gas; a part of the deformation transmission layer abuts against the capacitor, and is used for transmitting deformation of the hydrogen sensing layer to the capacitor; and the substrate is arranged at the bottom part of thecapacitor. When the hydrogen sensing layer is deformed after absorbing the hydrogen gas, the hydrogen sensing layer presses the deformation transmission layer, so that the deformation transmission layer is bent to push the capacitor downwards, and the capacitance value of the capacitor is changed. The capacitive hydrogen sensor has the beneficial effects that the response time of the sensor is remarkably shortened, and the measurement precision is improved.

Description

technical field [0001] The invention relates to the technical field of gas sensors, in particular to a capacitive hydrogen sensor. Background technique [0002] Due to its ubiquitous and carbon-free characteristics, hydrogen energy is considered to be an effective way to solve energy problems and may become the "ultimate energy source" for mankind. According to the forecast of the International Hydrogen Energy Council, by 2050, hydrogen energy can meet 18% of the total global energy demand or 12% of the total global primary energy demand, and the market size of hydrogen energy and hydrogen energy technology will exceed 2.5 trillion US dollars. Hydrogen is active, and its explosion limit in air is 4%-75.6% under normal temperature and pressure; and its ignition energy is extremely low, only 0.02mJ, and it is easy to be ignited if leaked in the air, even in dry weather. Any static discharge may ignite, creating an explosion hazard. Therefore, effective online monitoring of h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/22
CPCG01N27/22
Inventor 骆俊迪肖孝天王广华马凯成杨凯姜慧刘青宋良芬
Owner 安徽伯华氢能源科技有限公司
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