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應用鄰域  / Application
1.  洗地機/  Washing machine ：
檢測洗地機清水箱是否有水，給予用戶提示加水。檢測污水箱是否裝滿，給予用戶提示需要倒出污水
Check if there is water in the cleaning tank of the floor scrubber and provide users with a prompt to add water. Check if the sewage tank is full and provide users with a prompt to pour out the sewage
2.  飲品設備/  Beverage equipment ：
在出液設備前添加傳感器，若管道內檢測不到液體，代表此時設備飲料已經使用完了，給用戶提示添加材料
Add a sensor before the liquid dispensing device. If no liquid is detected in the pipeline, it means that the device's beverage has been used up and prompts the user to add materials
3.  咖啡機/  Coffee machine ： 
在咖啡機的出水管進行安裝，當水箱的水使用完后進行提示
Install the water outlet pipe of the coffee machine and provide a prompt when the water in the tank is used up

4.  自動添料設備（液體）/  Automatic feeding equipment (liquid) ：

當材料使用完后需要進行提示或者保護

Prompt or protection is required after the material is used up

原理及優勢/ Principle and Advantages
1.  光學式管道液體傳感器的原理/ Principle of Optical Pipeline Liquid Sensor

傳感器利用光電效應和光的棱鏡的折射效應進行檢測管道內是否有液體的存在當管道內沒有液體，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受到紅外光，當管內有液體時，不會發生反射現象。受光器件便不會發生阻值的變化，由電阻的改變從而引發電壓的改變，所以在MCU上檢測電壓的狀態便可以得出管內有沒有水
Sensors use the photoelectric effect and the refractive effect of prisms to detect the presence of liquid in pipelines  When there is no liquid in the pipeline, the infrared light source of the sensor emits light that reflects off the prism  The photodiode receives infrared light and does not reflect when there is liquid inside the tube. The light receiving device will not undergo a change in resistance, and the change in resistance will cause a change in voltage. Therefore, detecting the voltage status on the MCU can determine whether there is water inside the tube

2.  優勢，此傳感器體積較小，安裝快捷，方便，在檢測過程中沒有一點機械運動過程，使用壽命長。客戶在使用此傳感器開發方便，只需一個ADC接口便可。
Advantages: This sensor has a small size, is easy to install, and has no mechanical movement during the detection process The process has a long service life. Customers can easily develop using this sensor with just one ADC interface

推薦應用電路 / Recommended Application Circuit