智能密度测量仪  

Intelligent density measurement device

作　　者：王秀霞[1] 

机构地区：[1]菏泽学院物理系,山东菏泽274015

出　　处：《物理实验》2012年第2期17-20,共4页Physics Experimentation

基　　金：山东省高等学校实验技术研究项目资助(No.S04W138)

摘　　要：通过对密度测量的仪器和方法的改进研制了智能密度测量仪.系统通过ADHX711芯片将压力传感器信号进行模数转换,以AT89S52单片机为控制核心,利用按键实现对芯片的实时控制,并用指示灯显示按键的状况,采用自制数字温度计检测当前的水温,根据该参数对比出当前水的密度,再由压力传感器测出物体在水中的视重,通过单片机对主控芯片进行数据处理,精确测量出被测固体的密度值.An intelligent density measurement device was designed. The system converted analog signals to digital signals through ADHX711. Using AT89S52 as the control center,real-time control of the chip was achieved, and the status of the keys were showed on the indicator. The temperature of the water was detected by self-made digital thermometer and the water density was determined. The weight of the object in water was measured by a pressure sensor. After data processing with master chip mierocontroller, the density of the object was measured accurately.

关 键 词：密度 AT89S52 ADHX711 压力传感器 

分 类 号：TB933[一般工业技术—计量学]