针对实际作战中，由于敌潜艇潜航深度模糊性导致磁探仪搜索宽度不确定的问题，基于磁探仪的战技性能特点，提出了平均搜索宽度的概念，建立了磁探仪平均搜索宽度计算模型，为作战筹划提供了基本参数；给出了反潜巡逻机使用磁探仪进行区域搜索的“两类三种”搜索方法，以及得到接触后的“两类四种”行动方法；建立了反潜巡逻机使用磁探仪在指定区域搜索发现潜艇概率计算模型，该模型适用于逆计算。

To solve the problem of the uncertainty of the searching width of the magnetic anomaly detector caused by the uncertain diving depth of the enemy submarine in practical combat, the concept of average searching width is put forward and the calculation model of the average searching width of the magnetic anomaly detector is built based on the performance characteristics of the magnetic anomaly detectorswhich can provide the basic parameters for combat plan and preparation. Two types, totally three kinds of searching methods are proposed for the anti-submarine patrol aircraft to carry out regional search with the magnetic anomaly detector. Two types, totally four kinds of action plans for use after the contact are given. The model is proposed for calculating the probability of successfully detecting the enemy submarines in specified areas by the anti-submarine patrol aircraft with the magnetic anomaly detector, and this model can be applied to inverse calculation.