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傳感器利用光電效應和光的棱鏡的折射效應進行檢測容器內是否有液體的存在，當容器內有液體時，傳感器的紅外發光源發出的光照射到棱鏡上，由于棱鏡的折射率和液體相似，不會或有少量的紅外光被反射回來。當容器內沒有液體，傳感器的紅外發光源發出的光照射到棱鏡上，會進行反射光電二極管接收到紅外光后，阻值發生改變，從而使電路中的電壓隨發生改變.

? 應用鄰域 / Application
1. 水塔水位監測 / Water tower water level monitoring
2. 液位控制設備 / Liquid level control equipment
 
3. 漏液保護設備 /Leakage protection equipment
 
4. 缺液保護設備 / Lack of liquid protection equipment
 
5. 帶水箱的產品 / Products with water tank
 
6. 熱水器/ Water heater
熱水器中沒有液體，則做停止加熱處理
If there is no liquid in the water heater, do stop heating treatment
 
7. 水族設備 / Aquarium equipment
可配合遠程設備或者其他設備，實時監測魚缸里面的液位是否正常，例如在低水位監測點安裝傳感器，若水位到達此點則提示，或在高液位監測點，水位超過則提 示，以確保魚缸水位不會過低過高。

It can work with remote devices or other devices to monitor whether the water level in the aquarium is normal in real time. For example, a sensor is installed at the low water level monitoring point to prompt if the water level reaches this point, or at the high water level monitoring point to prompt if the water level exceeds this point, so as to ensure that the water level of the aquarium is not too low or too high.

? 原理與優勢/ Principle and Advantages 1. 光學式液體傳感器的原理/ The principle of optical liquid sensors 傳感器利用光電效應和光的棱鏡的折射效應進行檢測容器內是否有液體的存 在，當容器內有液體時，傳感器的紅外發光源發出的光照射到棱鏡上，由于 棱鏡的折射率和液體相似，不會或有少量的紅外光被反射回來。當容器內沒 有液體，傳感器的紅外發光源發出的光照射到棱鏡上，會進行反射光電二極 管接收到紅外光后，阻值發生改變，從而使電路中的電壓隨發生改變 The sensor uses the photoelectric effect and the refraction effect of the prism of light to detect whether there is liquid in the container, when there is liquid in the container, the light emitted by the infrared light source of the sensor irradiates the prism, because the refractive index of the prism is similar to that of the liquid, there will be no or a small amount of infrared light reflected back. When there is no liquid in the container, the light emitted by the sensor's infrared light source hits the prism, and the photodiode receives the infrared light, and the resistance value changes, so that the voltage in the circuit changes

2. 優勢 / Advantages 集成8點檢測，接線簡單 Integrated 8-point detection, simple wiring M26的螺紋可隨意更換 The threads of the M26 can be changed at will 光學方式檢測精確可靠 Optical detection is accurate and reliable 使用壽命長 Long service life