What is the photoelectric tube inside the ice maker?
The ice machine (English Name: ice maker or ice machine) is a kind of refrigeration equipment of water through the evaporator by refrigerant cooling system after the formation of ice, the refrigeration system using water carrier, while it is energized by a device made of ice. According to the principle of the evaporator and the different production methods, the shape of the ice is also different; people usually ice machine will be divided into ice machine, ice machine, ice plate machine, tube ice machine, shell ice machine and so on.
The typical structure of photoelectric tube is the spherical glass shell vacuum, hemispherical surface coated with a layer of photoelectric material as the cathode, the center placed small spherical or ring shaped metal as anode. If the ball is filled with low pressure inert gas, it becomes an inflatable photoelectric tube. In the process of flying to the anode, photoelectrons collide with the gas molecules and ionize the gas, which increases the sensitivity of the photoelectric tube. The metal used as photocathode has alkali metal, mercury, gold, silver and so on, and can be suitable for different bands. Because of its low sensitivity, large volume and easy breakage, photoelectric tubes have been replaced by solid photoelectric devices.
The photoelectric tube (phototube) in the ice maker is a basic photoelectric converter based on the external photoelectric effect. The photoelectric tube converts light signals into electrical signals. The photoelectric tube is divided into two kinds: the vacuum photoelectric tube and the gas filled photoelectric tube.
