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HART协议简介
- HART协议由Rosemount公司开发且已向每个使用者开放HART协议采用标准的Bell 202频移键控信号以1200波特通信以低电平加载于4mA~20mA模拟信号上，由于载波信号的平均值为零所以它对模拟信号没有影响。-HART agreement develops by Rosemount Corporation also opened the HART agreement to each user to use the standard the Bell 202 frequency-s
4～20mA传感器数据处理新途径.pdf
- 4～20mA传感器数据处理新途径.pdf
4-20ma.rar
- 4-20MA信号发生器，含电路图，使用说明以及汇编源程序,4-20MA signal generator, including schematics, source code for use as well as the compilation
iv_4_20ma
- 介绍如何简单可靠而方便测量 4～20mA 信号的文章。许多仪器仪表在远距离传送信号时，都有可能采取 4～20mA 的方式进行传送。本文对使用运算放大器或者不用运算放大器的场合都有介绍。给出了接口电阻的计算方法以及调整4mA＝零点，20mA＝满度的详细说明。并附有局部连接的原理图。-How simple, reliable and convenient measurement of 4 ~ 20mA signal article. Many instruments in the long-dist
ad421_4-20ma
- ad421可把串行输入的数据转换输出为4——20ma电流的器件。此为测试程序代码。-ad421 serial input data can be converted to output 4- 20ma current devices. This is the test code.
mA2DC-SCH+PCB
- mA电流转换成电压的电路SCH+PCB，可转换4~20mA的电流，改变电阻可改变转换范围。文件为Protel DXP 2004-mA current into a voltage circuit SCH+ PCB, can be converted 4 ~ 20mA of current, resistance to change can alter the scope of the conversion. Protel DXP 2004 documents
4-20mA-Current-Loop-Primer
- 20ma的电流环通信回路仍应用于一些远程通信的场合，本文为其实现过程。-20ma current loop
b2b
- PCB板，恒流恒压，20MA-300MA，输入电压220~，输出电压50-20V。
4~20mA
- 4~20mA变送器开发用的代码用AD421芯片-4 ~ 20mA transmitter developed using AD421 chips with the code
mV_to4~20mA
- 单片机C语言程序，实现将采集到的0~10mV传感器信号转换为4~20信号，用到的芯片包括AD420，CS5532，X5045-Microcontroller C Programming Language, will be collected to achieve the 0 ~ 10mV sensor signals into 4 to 20 signal, use the chips include the AD420, CS5532, X5045
4-20ma
- TINA下绘制的 工业4-20mA 传感器信号采集用的隔离放大器。能将4-20mA的电流信号转换为0~3V的电压信号，方便设备采样。-TINA drawn under the Industrial 4-20mA sensor signal acquisition using isolation amplifiers. Can 4-20mA current signal into a 0 ~ 3V voltage signal to facilitate the sampling equipmen
4-20ma---0-10v-LCD
- 4-20ma application note
MultiInput_ai_module
- 模拟量万能输入，信号可以是，Ⅱ型标准信号：0~5V、0~10MA，Ⅲ型标准信号：1~5V、4~20MA，mV电压信号：0~20mV、0~100mV，热电阻： Pt100、Cu50，热电偶： B、E、J、K、S、T -Universal analog input signal can be, Ⅱ type standard signal: 0 ~ 5V, 0 ~ 10MA, Ⅲ Standard signals: 1 ~ 5V, 4 ~ 20MA, mV voltage signal: 0 ~
0-10V-0-20mA
- 简易实用型0-10V 0-20mA的信号转换电路图纸-Simple practical 0-10 V 0 to 20 mA signal converter circuit drawings
20mA
- 在MPLAB运行，用PICC编译，输出交流0—20mA,采用PIC16F883-MPLAB run, PICC compiler output AC 0-20mA, PIC16F883
Gerador-4-20mA
- Circuit 4-20mA generator make in Altium Desgin-Circuit 4-20mA generator make in Altium Desgin
PWM-convert-4-20ma-output
- 将单片机PWM信号变送成工业标准电流输出4-20mA -The microcontroller PWM signal transmission into industry standard 4-20mA current output
ADC
- 将4路模拟量4-20mA电流信号通过I\V变换将信号送至AD模块， 实现数模转换，送入单片机，经单片机处理后，再次通过DA转换和V\I变换， 输出，最后连接一个远程通讯模块连接至上位机。(The 4 analog 4-20mA current signal is transmitted to the AD module via the I\V transform, Realize digital to analog conversion, into the microcontroller,
PROTEUS仿真 输出4-20mA
- preteus仿真 4-20mA输出 加数据表(protues multisim 4-20mA)
c8051f 4~20ma转485
- 运用c8051f350 将4~20ma转485接口的信号