几种基于单片机的数字频率测量仪的设计
上传时间: 2013-11-12
上传用户:klin3139
DS18B20温度测量、报警系统的设计
上传时间: 2014-12-26
上传用户:开怀常笑
DS18B20温度测量、报警系统的设计
上传时间: 2014-12-26
上传用户:ZJX5201314
18B20温度测量
上传时间: 2013-10-19
上传用户:guanhuihong
设计一种基于P89V51RD2的功率因数测量仪,采用光电隔离器和专用数码管驱动器。该测量仪是以增强型单片机P89V51RD2为核心,大大简化系统硬件设计。而软件部分采用模块化设计思想,采用中值滤波和小数补偿算法,实现功率因数的高精度测量。实验测试表明,该功率因数测量仪测量精度高,运行稳定可靠。 Abstract: A power-factor measurement instrument based on P89V51RD2is designed,which uses optical coupler and specific LED drive chip.The power factor measurement instrument uses P89V51RD2as a core of which greatly simplifies the system design.Furthermore,modularization software is developed in detail.The high precision power-factor measuring system is realized by the center value filter and fractional compensation algorithm.Experiments manifests that the power- factor measurement instrument is high precision,steady and reliable.
上传时间: 2014-12-27
上传用户:CHINA526
介绍了一种基于C8051F020单片机的多路压力测量仪。该测量仪选用电阻应变式压力传感器采集压力信号,并经放大电路处理后送入C8051F020单片机,再由C8051F020单片机内部的A/D转换器将采集到的压力信号进行模数转化,然后分别对数据进行存储和显示。该测量仪能测量6路压力信号,并且各测量点都能单独检测和设置。由于采用了C8051F020单片机,简化了硬件电路,增强了抗干扰能力,使得测量仪具有测量精度高,冲击小等特点。 Abstract: A measurement apparatus for multi-channel pressure based on single chip microcomputer is introduced.It can measure 6 channels signal of the pressure,and the pressure measure points can be detection and located individually.The pressure signal sampling is obtained by resistor stress-type pressure sensors,the digital signals of 6 channels are collected through amplifying and adjustment circuit of pressure signals and internal integrated A/D converter of MCU.Finally,and it realizes the function to store and display data separately.C8051F020 was used to made hardware circuit simple,and it also enhanced the anti-interference ability.It features high precision and little impact.
上传时间: 2013-11-16
上传用户:yare
因变量测试仪,电阻应变式转矩转速测量仪。
上传时间: 2013-11-13
上传用户:a155166
高频LCF测量仪资料
上传时间: 2013-10-16
上传用户:sjw920325
为了实现核电站的无电磁辐射在役设备的温度状态实时监测,提高设备使用安全性,设计并实现了一种满足核电站环境要求的基于电流环的有线温度测量系统。系统以C8051F系列单片机为控制器,用电流环实现有线数据传输,通过温度传感器DS18B20进行设备温度的实时获取,最后,应用后端模块对前端的温度数据进行接收和解析,并且实现测温结果在液晶屏上的直观显示。该系统目前已应用于多种核电设备中。
上传时间: 2013-10-15
上传用户:wxnumen
频谱测量仪的虚拟仪器实现方法
上传时间: 2013-11-13
上传用户:a673761058