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发明名称
袖珍数字压力表
摘要
本实用新型涉及一种测定压力的袖珍数字压力表,其特征在于采用硅杯压阻传感器与数字放大调理器连接,再经过A/D转换器时进行模数转换相应的数字信号,驱动液晶显示出相应的压力,具有体积小,重量轻、精度高、携带方便、寿命长、测量方便的优点。
申请公布号
CN2213331Y
申请公布日期
1995.11.22
申请号
CN94214687.5
申请日期
1994.06.23
申请人
华峰
发明人
华峰
分类号
G01L9/06
主分类号
G01L9/06
代理机构
代理人
主权项
1、袖珍数字压力表,由外壳、信号传感器、数字放大调理器、A/D转换器、电源、开关、液晶显示器组成,其特征在于信号传感器采用硅杯压阻传感器,在其桥臂上串联一温度补偿电阻,传感器与数字放大调理器连接,两输出端分别与放大器A1和A2同相输入端连接,经过放大器A3跟随放大再与A/D转换器和液晶显示器连接。
地址
100088北京市海淀区中关村路52号
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