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test_AD421.rar
- AD421 是美国ADI 公司推出的高性能模数转换器,其优良特性使其被广泛应用于各种智能变送器中及其他工 业控制场合中AD421程序，产生4到20MA电流，,AD421 procedures, resulting in 4 to 20mA current
ADC
- 在这次设计中，主要是实现工业标准上的电压（0～5V、1～5V）和工业标准上的电流（0～10mA、4～20mA）的互相转换。-In this design, mainly on the achievement of industry-standard voltage (0 ~ 5V, 1 ~ 5V) and the current industry standard (0 ~ 10mA, 4 ~ 20mA) mutual conversion.
ad421
- 4~20mA电流环输出式数模转换器AD421的基本接线-4 ~ 20mA current loop output DAC AD421 basic wiring
4-20MA_Convertor
- 单芯片，单电源，直接4-20ma电流转换为，轨到轨0-5V电压输出-Single-chip, single power supply, 4-20ma direct current converter for rail-to-rail voltage output 0-5V
AD5422
- MSP430与AD5422的通讯程序，实现高精度4——20mA电流输出。-MSP430 with the AD5422' s communication procedures to achieve high-precision 4- 20mA current output.
AD421_20100410
- 4~20毫安传感器变送程序 采用msp430-2013 //P1.5：数据输出 //P1.4：移位脉冲 //P1.6：锁存输出 //P1.2/A1+ P1.3/A1- 为外部传感器差动信号输入端-4 to 20 mA sensor transmitter program using msp430-2013// P1.5: data output// P1.4: shift pulse// P1.6: Latch the output// P1.2/A1+ P1.3/A1-d
ad-421
- AD421 输出电流4-20MA，AVR 读写的数-AD421 OUTPUT 4-20 MA
SN8P1702A_V
- 使用 SN8P1702A 的低成本上下限通用数字表头 图示电路是一款输入电压 DC200mV ,满度读数 2000 个字的数字电压表头电路.分辨力达到 100uV/字 .这种参数与通常使用的 3 位半数字表头相吻合,(但是这里没有负电压信号的测量功能).因此,可以方便地在无需负信号输入的场合替换原来的数字表头. 替换带来的好处是这里具有上下限设置的控制功能,而普通的 3 位半数字表头却只能测量显示而不能进行设置控制. 配原理图应用和连接说明: 图A:测量和控制直流 200mA 信
HRMeter
- ：热电阻在工业生产中常用于中低温区测温，是温度测量中应用较为普遍的测温元件．通过对其测 温原理的研究，设计了基于MSP430FI69单片机的热电阻测温仪．本设计采用恒流源驱动三线制热电 阻，配合信号平移、放大电路，利用片内A／D转换器，通过分时采样将热电阻对应的电压信号采集进来． 经过一阶插值拟合运算程序处理后显示温度值并由D／A转换器输出电压信号，再经过V-1变换实现 4—20 mA变送输出功能．-: Thermal resistance often used in indus
AD5421_cn
- 是一款完整的环路供电型4 mA-20 mA数模转换器(DAC)，专为满足工业控制领域智能发射器制造商的需求而设计。作为一种完全集成的高精度、低成本解决方案，该器件采用紧凑型TSSOP和LFCSP封装-AD5421 DATASHEET AD5421 DATASHEET AD5421 DATASHEET
hart-protocol
- The HART Application Guide has been created by the HART Communication Foundation (HCF) to provide users of HART products with the information necessary to obtain the full benefits of HART digital instrumentation. The HART communication proto
Hart_calibration
- The HART Application Guide has been created by the HART Communication Foundation (HCF) to provide users of HART products with the information necessary to obtain the full benefits of HART digital instrumentation. The HART communication proto
fieldbustutorial
- Field bus is the name of a family of industrial computer network protocols used for real-time distributed control, now standardized as IEC 61158.A Field bus is a digital, bidirectional, multi-drop, serial-bus communication network.Replaces the existi
PWMtoDA
- 在实际应用中，很多时候需要输出电压、电流等信号，特别是在工控行业中，4-20MA的转换经常要用到，选用AD421芯片来做的话，成本颇高，如果采用单片的PWM输出来做DA完全可以做到14位以上的精度。-In practical application, and many times need to signal of the output voltage, electric current and so on, especially in the industrial control indust
AD421_cn
- AD421：环路供电型4 mA-20 mA DAC(中文版PDF, 964 KB)-AD421: Loop-powered 4 mA-20 mA DAC (Chinese edition PDF, 964 KB)
4-20mA
- 工控，电力，仪表中常常使用4-20mA的信号输出，低成本高精度设计-Is often used in industrial control, electric power, the instrument of 4-20 ma signal output, low cost and high precision design
4-20ma-TransmitterPHARTPisolate
- Fully Isolated, Single Channel Voltage and 4 mA to 20 mA Output with HART Connectivity
k_thermocouple
- K型热电偶基于C8051F350采集温度，并转换为4-20MA标准信号-K type thermocouple based on C8051F350 collection temperature, and converted into a standard 4-20 ma signal
4-20ma RTD
- 可测量和处理来自 2 线、3 线和 4 线电阻式温度检测器的温度信号输入，并输出与来自 RTD 输入的所处理的温度相对应的 4 至 20 mA 电流回路信号，并进行系统级的校准以提高 ADC 和 DAC 精度。(It can measure and process the temperature signal input from the 2-wire, 3-wire and 4-wire resistive temperature detector, and output the 4-20 m
AD5420
- The AD5410/AD5420 are low cost, precision, fully integrated 12-/16-bit converters offering a programmable current source output designed to meet the requirements of industrial process control applications. The output current range is programmable at