HMC1022磁阻传感器在磁记忆检测中的应用

Appliance of HMC1022 magnetic sensor in metallic magnetic memory testing

金属磁记忆检测是利用磁记忆效应对铁磁性材料的应力集中区进行无损检测的新方法。磁记忆信号非常微弱,磁敏传感器的选择十分重要。文章介绍了一种新型的霍尼韦尔磁阻传感器HMC1022,它具有高灵敏度、高分辨率、抗干扰能力强的特点。通过在磁记忆检测方面的应用实验,证明可完全满足金属磁记忆检测的需要。

Metallic magnetic testing can find stress concentration field of the metallic magnetic material by using magnetic memory phenomenon. Because magnetic memory signal is faint, selection of magnetic sensor is very important. This paper recommends a kind of new-style HMC1022 magnetic sensor, with the characteristics of high distinguishability, high sensibility, antiinterference. A lot of experiments demonstrate it meets practical metallic magnetic testing well-logging demands.