Products
Capacitance Sensor
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Overview
![Capacitance Sensor](/en/product/__icsFiles/afieldfile/2021/08/03/electron-capacitance-sensor-pic01_2.jpg)
This sensor detects changes of capacitance/impedance. Application examles are liquid level and concentration sensors, etc.
Since the detection electrode is protected by ultra-thin ceramic layer, it can be used for various liquids.
We can customize the material, thickness of protective film and electrode pattern as per customers' requirement.
Example of Structure
Electrode pattern
![Electrode pattern](/en/product/__icsFiles/afieldfile/2021/08/03/electron-capacitance-sensor-en-pic02.png)
A-A’ Cross-sectional structure
![A-A’ Cross-sectional structure](/en/product/__icsFiles/afieldfile/2021/08/03/electron-capacitance-sensor-en-pic03.png)
Measurement principle
Detecting change of capacitance/impedance by change of surface condition on the sensor.
![Illustration of Measurement principle](/en/product/__icsFiles/afieldfile/2021/11/05/electron-capacitance-sensor-en-pic04.png)
Application examle
- Liquid level sensors for corrosive and reactive liquid
- Concentration sensors for chemical liquid
- Condensation sensor
- Gas sensor
- Particle sensor
- Space potential sensor
Examples of liquid level sensor characteristics
![Illustration of examples of liquid level sensor characteristics](/en/product/__icsFiles/afieldfile/2021/11/05/electron-capacitance-sensor-en-pic05.png)
![Illustration of examples of liquid level sensor characteristics](/en/product/__icsFiles/afieldfile/2021/08/03/electron-capacitance-sensor-en-pic06.png)
Inquiry about Electronic Components
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