In the field of coffee machine level detection, photoelectric and capacitive are two common technical routes. However, for applications like water and milk tanks, non-contact capacitive sensors often perform better. Shenzhen Star Creative Technology reveals the secrets behind this.
Photoelectric sensors rely on light refraction and are easily affected by air bubbles, turbidity, or condensation on the container wall, leading to misjudgment. Additionally, if the lens head is covered with dirt or water mist, sensitivity drops significantly. In contrast, Star Creative's capacitive sensor is based on electric field induction, unaffected by liquid transparency, color, or foam.
Especially in milk tank applications, milk film and scaling can quickly disable photoelectric sensors. Since capacitive sensors use non-contact installation, they are unaffected by interference from dirt, dust, frost, etc., ensuring high long-term stability. Moreover, capacitive sensors have no moving parts and excellent vibration resistance, making them ideal for high-frequency vibrating equipment like coffee machines. Star Creative Technology recommends the most suitable level detection solution from a professional technical perspective.
