As mentioned earlier, the detector head of a metal detector is often referred to as the "circle" due to its typically circular or oval shape. So, what's so special about this "circle" part?
1. Design Principle: The circular design of the detector head isn't arbitrary; it's based on the propagation characteristics of electromagnetic waves or magnetic fields. This circular or oval shape helps the detector head transmit and receive electromagnetic waves or magnetic fields more evenly, thereby improving detection accuracy and sensitivity.
2. Sensor Layout: The detector head typically contains multiple sensors, arranged in a specific layout to ensure omnidirectional detection of surrounding metal objects. When electromagnetic waves or magnetic fields encounter metal objects, the sensors detect these changes and convert them into electrical signals, transmitting them to the signal processor.
3. Protection and Durability: Because detector heads may encounter a variety of complex environments and conditions during use, their housings are typically made of durable materials and have certain water and dust resistance properties. Furthermore, the sensors within the detector head are carefully designed and protected to ensure long-term stable operation.
