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Developmnent of high-performance sensor devices using amorphous magnetic materials

采用非晶磁性材料的高性能传感器器件的开发

基本信息

批准号：
60850078
负责人：
JIRO YAMASAKI
金额：
$ 3.52万
依托单位：
Kyushy Institur te of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research
财政年份：
1985
资助国家：
日本
起止时间：
1985 至 1987
项目状态：
已结题

项目摘要

1. Constitution of high-performacne sensor devices.(1) Reinforcement of the large barkhabusen and Matteucci effects in amorphous wires: These effects were remarkably reinforced through cold drawing followed by tension annealing ot torsion annealing ofr amorphous magnetostrictive wires. The figure of metir ep/1* (ep: Matteucci volrage, and 1*: veitical length of the wire) became about 200 times that of as prepared wires.(2) Inverter current sensors: More than 6 pairs of amorphous microcores were set atound a condictour wire to detect noncontactly the wire current canelling external disturbance filds. A negative feedback multivebrator cirucuit was used for stable current detection fot the core temperature variation of - 200 to 200 ゜C.(3) Sinusoidal magnetic encoder: 100 pairs of amorphous microcores were set around a 100-pole ring magnet for detection of accurate sinusoidal leakage fulux along to cancellations of irregulat distribution of field strength at each pole, indluence of the off-center motion of the shagr, and external disrurbance field.(4) Shafr torque sensor: An accurate torque sensor detecting a twisted angle between two points of a shaft of as small as 0.002゜ was constituted. At each point, a star-shaped amorphous core facing a multi-pole ring magnet was fixed.2. Sensing of microvibrations at a hnuman body skin:The mictovibrations of 0.1 - 300 um were stabley detected using a non-contact magnet displacement sensor with and amorphous star shaped core. These data would be important information for giagnosis of heart deseases and bllod circulation system.

1. 高性能痤疮传感器的组成。(1)增强非晶态磁致伸缩丝中的barkhabusen和Matteucci效应：通过冷拔，然后对非晶态磁致伸缩丝进行张力退火或扭转退火，这些效应得到显著增强。metir ep/1* （ep: Matteucci电压，1*：导线的垂直长度）的数值约为制备后导线的200倍。(2)逆变电流传感器：在状态导线周围设置6对以上的非晶微芯，以非接触方式检测导线电流对外界干扰场的影响。使用负反馈多振荡器电路对- 200至200 C的核心温度变化进行稳定电流检测。(3)正弦波磁编码器：在100极环形磁体周围设置100对非晶态微磁芯，用于检测精确的正弦波漏磁，消除每极磁场强度的不规则分布、磨头离心运动的影响以及外部干扰场。(4)轴扭矩传感器：构建了一个精确的扭矩传感器，可检测轴两点之间小至0.002的扭力。在每个点上，固定一个星形的非晶态磁芯，面对一个多极环形磁铁。人体皮肤微振动的传感：使用非接触式磁体位移传感器稳定地检测0.1 - 300um的微振动，该传感器具有无定形星形核心。这些数据将为心脏疾病和血液循环系统的诊断提供重要信息。