利用由弯曲板波形成的倏逝声场的接近传感器

S. Hongo, I. Naliamura, N. Hosokawa
{"title":"利用由弯曲板波形成的倏逝声场的接近传感器","authors":"S. Hongo, I. Naliamura, N. Hosokawa","doi":"10.1109/ULTSYM.1997.663066","DOIUrl":null,"url":null,"abstract":"A proximity sensor utilizing an evanescent acoustic field formed by flexural plate waves is proposed. When an object comes into the evanescent field, the acoustic radiation admittance of the bending vibrator may change. Hence, the proximity sensing can be achieved by measuring the electrical admittance of the piezoelectric flexural vibrator. To confirm the characteristics of the proximity sensor, some experiments were carried out using a flexural vibrator consisting of a 140/spl deg/ rotated Y-cut LiNbO/sub 3/ plate with a polarization-inverted layer. When an object was approached to the major surface of the vibrator, the admittance at a resonance of the bending vibrator decreased drastically according as the distance d between the object and the vibrator became short. On the other hand, when the object was approached to the tip of the vibrator, the Q-factor decreased in the range d>0.2 mm but increased again unexpectedly in the range d<0.2 mm.","PeriodicalId":6369,"journal":{"name":"1997 IEEE Ultrasonics Symposium Proceedings. An International Symposium (Cat. No.97CH36118)","volume":"4 1","pages":"475-478 vol.1"},"PeriodicalIF":0.0000,"publicationDate":"1997-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Proximity sensors utilizing an evanescent acoustic field formed by flexural plate waves\",\"authors\":\"S. Hongo, I. Naliamura, N. Hosokawa\",\"doi\":\"10.1109/ULTSYM.1997.663066\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A proximity sensor utilizing an evanescent acoustic field formed by flexural plate waves is proposed. When an object comes into the evanescent field, the acoustic radiation admittance of the bending vibrator may change. Hence, the proximity sensing can be achieved by measuring the electrical admittance of the piezoelectric flexural vibrator. To confirm the characteristics of the proximity sensor, some experiments were carried out using a flexural vibrator consisting of a 140/spl deg/ rotated Y-cut LiNbO/sub 3/ plate with a polarization-inverted layer. When an object was approached to the major surface of the vibrator, the admittance at a resonance of the bending vibrator decreased drastically according as the distance d between the object and the vibrator became short. On the other hand, when the object was approached to the tip of the vibrator, the Q-factor decreased in the range d>0.2 mm but increased again unexpectedly in the range d<0.2 mm.\",\"PeriodicalId\":6369,\"journal\":{\"name\":\"1997 IEEE Ultrasonics Symposium Proceedings. An International Symposium (Cat. No.97CH36118)\",\"volume\":\"4 1\",\"pages\":\"475-478 vol.1\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1997-10-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"1997 IEEE Ultrasonics Symposium Proceedings. An International Symposium (Cat. No.97CH36118)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ULTSYM.1997.663066\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"1997 IEEE Ultrasonics Symposium Proceedings. An International Symposium (Cat. No.97CH36118)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ULTSYM.1997.663066","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2

摘要

提出了一种利用弯曲板波形成的倏逝声场的接近传感器。当物体进入倏逝场时,弯曲振动器的声辐射导纳会发生变化。因此,可以通过测量压电弯曲振动器的导纳来实现接近感测。为了验证该接近传感器的特性,利用140/spl度/旋转y形切割LiNbO/ sub3 /板和极化反转层组成的弯曲振动器进行了实验。当物体接近振动器主表面时,弯曲振动器的共振导纳随着物体与振动器距离的缩短而急剧减小。另一方面,当物体接近振动器尖端时,q因子在d>0.2 mm范围内下降,但在d<0.2 mm范围内又意外增加。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Proximity sensors utilizing an evanescent acoustic field formed by flexural plate waves
A proximity sensor utilizing an evanescent acoustic field formed by flexural plate waves is proposed. When an object comes into the evanescent field, the acoustic radiation admittance of the bending vibrator may change. Hence, the proximity sensing can be achieved by measuring the electrical admittance of the piezoelectric flexural vibrator. To confirm the characteristics of the proximity sensor, some experiments were carried out using a flexural vibrator consisting of a 140/spl deg/ rotated Y-cut LiNbO/sub 3/ plate with a polarization-inverted layer. When an object was approached to the major surface of the vibrator, the admittance at a resonance of the bending vibrator decreased drastically according as the distance d between the object and the vibrator became short. On the other hand, when the object was approached to the tip of the vibrator, the Q-factor decreased in the range d>0.2 mm but increased again unexpectedly in the range d<0.2 mm.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Diamond wafer for SAW application High contrast images of defects in food package seals New properties of the SAW gas sensing Electromagnetic acoustic resonance for studying dislocation formation in polycrystalline pure copper during deformation A new design of ultrasonic air-coupled ribbon transducer
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1