Air flow velocity measurements are the key issues in examining the condition and progress of mine ventilation process. In addition to standard measurements carried out in the stock exploitation process, it is necessary to conduct cognitive scientific research in this area. One of the important issues here is the measurement of fast-changing fluctuations of air velocity, enabling the knowledge of the spectral structure of the tested flow. Hot-wire anemometers are used for such measurements both in laboratories and in industrial conditions. A frequent metrological problem is the presence in the measuring area of a high level electromagnetic interference (EMI) from electrical networks and devices. Due to the metrological properties of hot-wire anemometers, such as high gain and wide frequency bandwidth, measuring signal in the presence of electromagnetic interferences may be subject to strong disturbances. Therefore, it is necessary to develop methods for reducing or eliminating these disturbances. The article presents such a new method based on the use of an additional induction loop in the anemometric sensor for compensation or reduction of interferences.

空气流速的测量是检查矿井通风状况和进度的关键问题。除了在股票开发过程中进行标准测量外，还需要在这一领域进行认知科学研究。此处的重要问题之一是测量快速变化的风速，从而了解被测气流的光谱结构。在实验室和工业条件下，热线风速计均用于此类测量。常见的计量问题是在测量区域中存在来自电网和设备的高水平电磁干扰（EMI）。由于热线风速计的计量特性，例如高增益和宽带宽，在存在电磁干扰的情况下测量信号可能会受到强烈干扰。因此，有必要开发减少或消除这些干扰的方法。本文介绍了一种基于在风速传感器中使用附加感应环路来补偿或减少干扰的新方法。