A broadband magneto-electric transducer using a composite material
A broadband magneto-electric transducer using a composite material
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DOI：
10.1080/00207218108901330
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发表时间：
1981-09
影响因子：
1.3
通讯作者：
L. Bracke;R. G. VAN VLIET
中科院分区：
文献类型：
--
作者：
L. Bracke;R. G. VAN VLIET
本文研究了复合材料在磁电换能器中的应用。这种兼具磁致伸缩和压电性能的复合材料是由飞利浦研究实验室开发的。由一块复合材料组成的换能器似乎是霍尔器件的合适替代品，特别是在交流应用中。它只需要两个电触点，具有从几赫兹到650千赫的平坦频率响应，在那里发生机械共振。在传感器及其电子模拟器上以及在必须产生校准磁场的测量装置上进行了几次计算和实验。讨论了频率响应、传输特性、内阻抗、温度特性和噪声的测量结果。描述了用该复合材料制作磁场探头的方法，并给出了一些其他应用。
This article deals with the application of a composite material as a magneto-electric transducer. The composite, which has both magneto-strictive and piezo-electric properties was developed at Philips' Research Laboratories. A transducer consisting of a piece of composite appears to be a suitable replacement for e.g. Hall devices, especially in AC applications. It needs only two electrical contacts and has a flat frequency response from a few Hz up to 650 kHz, where mechanical resonance occurs. Several calculations and experiments were carried out on the transducer and its electronic analogon, as well as on the measuring set-up, which had to produce a calibrated magnetic field. The results of the measurements on frequency response, transfer characteristics, internal impedance, temperature dependence and noise are discussed. The construction of a magnetic field probe using the composite is described and finally some other applications are given.