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测试测量 微电脑型RS-485显示电表(24*48mm/48*96mm)
微电脑型RS-485显示电表(24*48mm/48*96mm) 特点: 5位数RS-485显示电表 显示范围-19999-99999位數 通訊协议Modbus RTU模式 宽范围交直流兩用電源設計 尺寸小,穩定性高 主要规格: 显示范围:-19999~99999 digit RS-485传输速度: 19200/9600/4800/2400 selective RS-485通讯位址: "01"-"FF" RS-485通讯协议: Modbus RTU mod ...
测试测量 微电脑型单相交流集合式电表(单相二线系统)
微电脑型单相交流集合式电表(单相二线系统) 特点: 精确度0.25%满刻度±1位数 可同时量测与显示交流电压,電流,頻率,瓦特,(功率因數/視在功率) 交流電壓,電流,瓦特皆為真正有效值(TRMS) 交流電流,瓦特之小數點可任意設定 瓦特單位W或KW可任意設定 CT比可任意設定(1至999) 輸入與輸出絕緣耐压 2仟伏特/1分鐘( 突波測 ...
测试测量 集合式直流电能表(小功率的)
集合式直流电能表(小功率的) 特点: 精确度0.05%满刻度±1位数 可同时量测与显示/直流电压/电流/瓦特(千瓦)/瓦特小时(千瓦小时) 电压输入(DC0-99.99V/0-600.0V)自动变档功能 显示范围0-9999(电流/瓦特/千瓦),0至99999999(八位數瓦特小时)可任意规划 数位RS-485 界面 (Optional) 主要规格: 辅助电源消耗功率 ...
测试测量 高精度温度测量铂电阻温度探测器(PRTDs)和ADC
Abstract: Many modern industrial, medical, and commercial applications require temperature measurements in the extended temperature rangewith accuracies of ±0.3°C or better, performed with reasonable cost and often with low power consumption. This article explains how platinumresistance ...
测试测量 XAPP713 -Virtex-4 RocketIO误码率测试器
 
The data plane of the reference design consists of a configurable multi-channel XBERT modulethat generates and checks high-speed serial data transmitted and received by the MGTs. Eachchannel in the XBERT module consists of two MGTs (MGTA and MGTB), which physicallyoccupy one MGT tile in t ...
测试测量 ADC简化测量高阻抗传感器
 
Delta-sigma ADCs, with their high accuracy and high noiseimmunity, are ideal for directly measuring many typesof sensors. Nevertheless, input sampling currents canoverwhelm high source impedances or low-bandwidth,micropower signal conditioning circuits. The LTC®2484family of delta sig ...
测试测量 HDMI一致性测试
 
The high defi nition multimedia interface (HDMI) is fastbecoming the de facto standard for passing digitalaudio and video data in home entertainment systems.This standard includes an I2C type bus called a displaydata channel (DDC) that is used to pass extended digitalinterface data (EDID) ...
测试测量 低噪声电压基准的噪声测量
 
Frequently, voltage reference stability and noise defi nemeasurement limits in instrumentation systems. In particular,reference noise often sets stable resolution limits.Reference voltages have decreased with the continuingdrop in system power supply voltages, making referencenoise increa ...
测试测量 基于MASON公式的多功能二阶通用滤波器设计
基于通用集成运算放大器,利用MASON公式设计了一个多功能二阶通用滤波器,能同时或分别实现低通、高通和带通滤波,也能设计成一个正交振荡器。电路的极点频率和品质因数能够独立、精确地调节。电路使用4个集成运放、2个电容和11个电阻,所有集成运放的反相端虚地。利用计算机仿真电路的通用滤波功能、极点频率和品质因数的 ...
设计相关 Arduino应用_Arduino连接超声波传感器测距
超声波传感器适用于对大幅的平面进行静止测距。普通的超声波传感器测距范围大概是 2cm~450cm,分辨率3mm(淘宝卖家说的,笔者测试环境没那么好,个人实测比较稳定的 距离10cm~2m 左右,超过此距离就经常有偶然不准确的情况发生了,当然不排除笔者技术 问题。)
测试对象是淘宝上面最便宜的SRF-04 超声波传感器,有四个脚 ...