Preventing False Alarms in Coffee Machines with Non-Contact Sensors
Coffee machines generate significant steam during operation, leading to condensation on the inner walls of the water tank. Standard optical sensors often misread these water droplets as a full tank or mistake them for an empty one, disrupting the brewing cycle.
Xingkechuang's External Capacitive Solution
Shenzhen Xingkechuang Technology Co., Ltd.provides a non-contact capacitive liquid level sensor designed specifically for this challenge. It mounts on the outside of the plastic or glass tank, eliminating the need to penetrate the container.
Immunity to Steam and Moisture Interference
The sensor utilizes dielectric constant differentiation. Water has a high dielectric constant (~80) compared to air or thin condensation (~1). Our algorithm filters out the minimal capacitance change caused by steam or water mist, responding only to the substantial shift caused by real water presence. This ensures precise water tank level detectionfor coffee appliance manufacturers.
