Mine detector – a device created in 1943, Soviet engineers and is designed to find mines in the ground, snow and underwater. In this article we will look at the types of detectors and how they work. Detectors, which equipped armies of many countries, in many respects similar in its design and concept, but substantially differ in their performance characteristics. Sensor, the search element is the main integral part of all detectors. Poet has similar goals. It registers the type of anomaly that is caused by the presence of a foreign body in the ground. The most common induction detectors – with the sensors, their operating principle is based on registration of magnetic anomalies. Search their element associated with the generator of electromagnetic waves, which creates a local electromagnetic field. Metallic object, which is located in the soil, causing changes the direction of electromagnetic waves, and it is recorded to change the sound in the phone, fire warning light, the deviation indicator needle..