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非晶态合金是近十几年发展起来的一类新型合金材料,除用作各种变压器铁芯外,用非晶态合金制作各种高性能传感器和换能器在国外已受到越来越多的重视。在发展高级汽车、工业机器人、功率马达、工业测量以及医学电子学等关键性的技术领域,都广泛要求兼有多种特性和多种功能的新型传感器。例如,感应马达用的磁通传感器应同时满足如下条件:(1)高信噪比;(2)截止频率在几千赫兹以上的快速响应;(3)工作温度高达190℃时,对温度变化仍有高的稳定性和对机械振动的不敏感性;(4)微型化,铁芯尺寸要足够小,
Amorphous alloy is a new type of alloy developed in recent ten years. In addition to being used as a variety of transformer cores, various high performance sensors and transducers made of amorphous alloys have been increasingly used in foreign countries More attention. In the development of key technologies such as advanced automotive, industrial robots, power motors, industrial measurement, and medical electronics, there is a wide range of new sensors that require a combination of features and functions. For example, a flux sensor for induction motors should meet the following conditions simultaneously: (1) high signal-to-noise ratio; (2) fast response with a cutoff frequency above several thousand Hertz; (3) There is still high stability and insensitivity to mechanical vibration; (4) miniaturization, the core size to be small enough,