您的位置: 首页 > 农业专利 > 详情页

High temperature sensors and transducers
专利权人:
The Penn State Research Foundation
发明人:
Zhang Shujun,Shrout Thomas R.,Shen Chuanying
申请号:
US201514702847
公开号:
US9923136(B2)
申请日:
2015.05.04
申请国别(地区):
美国
年份:
2018
代理人:
Dinsmore & Shohl LLP
摘要:
A high temperature piezoelectric sensor device such as a high temperature accelerometer, force sensor, pressure sensor, temperature sensor, acoustic sensor and/or acoustic transducer for use at temperatures up to 1000° C. The high temperature device includes a base, a piezoelectric element attached to the base and a pair of electrodes in electrical communication with the piezoelectric element. The piezoelectric element can have a d15 piezoelectric coefficient between 16.0-18.0 pC/N for all temperatures between 25 to 700° C., and a rotated d33 piezoelectric coefficient of 8.0-9.5 pC/N with zero face shear/thickness shear piezoelectric coefficients d34. d35 and d36 in the same temperature range. The piezoelectric element can also have an electromechanical coupling factor k15 variation of less than 7%, and d15 and rotated d33 piezoelectric coefficient variations of less than 5% for temperatures between 25 to 700° C. The piezoelectric element can have high electrical resistivity, being on the order of >107 Ω
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

意 见 箱

匿名:登录

个人用户登录

找回密码

第三方账号登录

忘记密码

个人用户注册

必须为有效邮箱
6~16位数字与字母组合
6~16位数字与字母组合
请输入正确的手机号码

信息补充