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AUTOMATIC MEASUREMENT SYSTEM FOR DEVELOPING NEW ADVANCED HIGH-POWER PIEZOELECTRIC MATERIALS

用于开发新型先进高功率压电材料的自动测量系统

基本信息

批准号：
10650660
负责人：
HIROSE Seiji
金额：
$ 2.24万
依托单位：
YAMAGATA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2000
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650660/
关键词：
PIEZO-TRANSDUCER HIGH POWER MECHANICAL LOSS DIELECTRIC LOSS MEASURING SYSTEM

项目摘要

This study aimed the establishment of the measurement system both for the mechanical-vibration loss and the dielectric loss of the piezoelectric transducer. In the system, automatic measurement is adopted by using the computer control.Following results have been obtained through three years' investigations.1.Losses are expressed and separated to two kind of losses ; that is, mechanical-vibration loss and dielectric loss. These have been obtained by introducing the elastic loss angle and the dielectric loss angle into the input electrical admittance.2.Improved measurement system has been made and it's operations have been checked and confirmed. By using this system, piezoelectric and vibrational characteristics have been obtained easily up to high power level.3.Two losses of the piezoelectric transducer have been obtained in increasing the vibration amplitude. From these results, it has been clarified that the dielectric loss becomes dominant with increasing vibration amplitude, therefore, under high vibration level, the dielectric loss becomes much larger than the mechanical vibration loss.4.Those results can be utilized effectively for the development of the new advanced piezoelectric ceramic materials, and also utilized for the precise design of the piezoelectric transformers which are applied for the power electric sources.Those contents mentioned above have been published and presented at the symposia and the technical meetings.

本研究旨在建立压电换能器机械振动损耗和介电损耗的测量系统。系统采用计算机控制自动测量。经过三年的研究，得到了以下结果： 1．损失的表示，分为两种损失；即机械振动损耗和介电损耗。将弹性损耗角和介电损耗角引入输入电导纳中得到。2.改进了测量系统并对其运行进行了检查和确认。通过使用该系统，可以轻松获得高功率水平的压电和振动特性。3.在增加振动幅度时获得了压电换能器的两个损耗。从这些结果可以看出，随着振动幅度的增加，介电损耗变得占主导地位，因此，在高振动水平下，介电损耗变得比机械振动损耗大得多。4.这些结果可以有效地用于开发新型先进压电陶瓷材料，也可以用于电力电源中应用的压电变压器的精确设计。上述内容已在研讨会和技术会议上发表和介绍。