Liquid sensor and damage detection device and method thereof

A liquid sensor and damage detection technology, applied in the field of sensors, can solve the problems of circuit board burning, low stability and life of liquid sensors, etc., and achieve the effect of high stability and life.

Pending Publication Date: 2022-06-21
佛山英沃传感科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, this detection method needs to set up external electrodes, and the external electrodes are connected to the internal circuit board, and the liquid sensor arranged in the field environment is often dist

Method used

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  • Liquid sensor and damage detection device and method thereof
  • Liquid sensor and damage detection device and method thereof
  • Liquid sensor and damage detection device and method thereof

Examples

Experimental program
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Embodiment 1

[0042] Example 3:

[0043] It should be noted that in this article, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these No such actual relationship or order exists between entities or operations. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

[0044]The above descriptions are only specific implementation man...

Embodiment 2

Embodiment 3

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PUM

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Abstract

The invention relates to the technical field of sensors. The liquid sensor damage detection device is used for the liquid sensor with a closed cavity and comprises an external electrode, an internal electrode, a diagnosis circuit and a control circuit, the internal electrode and the external electrode are electrically connected with the diagnosis circuit; the external electrode is arranged outside the cavity; the internal electrode, the diagnosis circuit and the control circuit are arranged in the cavity; the diagnosis circuit is used for diagnosing whether the liquid sensor is damaged or not according to a diagnosis signal between the external electrode and the internal electrode; the control circuit is connected to the diagnosis circuit to turn on the diagnosis circuit and turn off the diagnosis circuit after diagnosis is completed. According to the technical scheme, the diagnosis circuit does not discharge to the outside all the time, strong current is attracted to enter an external electrode, and the liquid sensor damage detection device is higher in stability and service life.

Description

technical field [0001] The present disclosure relates to the technical field of sensors, in particular to a liquid sensor and a damage detection device and method thereof. Background technique [0002] A liquid sensor is an electronic sensor that can measure the physical or chemical properties of a liquid. It can convert the physical or chemical properties of the liquid into electrical signals, such as dissolved oxygen and pH in water. [0003] Since the liquid sensor is often arranged in a field environment, there are often aquatic organisms or debris in the water impacting the liquid sensor in the field environment, so the liquid sensor is prone to damage, especially the membrane used for selective filtration. When the shell or membrane of the liquid sensor is damaged, the cavity of the liquid sensor will enter the liquid, and the reaction electrode is arranged in the cavity of the liquid sensor, so the measurement result will seriously deviate from the normal value. [0...

Claims

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Application Information

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IPC IPC(8): G01N27/00G01N27/06G01N27/20
CPCG01N27/00G01N27/06G01N27/20
Inventor 华凯峰汪丽艳
Owner 佛山英沃传感科技有限公司
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