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    MC33993 is a new programmable low-power multichannel detection interface chip developed by America Motorola Company, which mainly applied in automobile electronic product. lt can not only detect automobile multichannel-switch state-variables, but also supply power for many automobile sensors, input analog signal and drive MOSFET/LED and so on.
    MC33993是美国Motorola公司新近推出的主要应用于汽车电子产品的低功耗可编程多路开关检测接口芯片,它通过编程不仅用以检测车辆上多路开关状态量,而且还可用以车辆众多的传感器的供电.模拟量信号的输入以及MOSFET/LED的驱动等。
    A PC' Analog Signal I/O Circuit Based on the Printer Interface
    一种外置式PC机模拟量I/O接口设计
    The Application of Transmitting Analog Signal by PWM
    模拟量采用PWM方式传送的应用
    The design of high-precision high-voltage fiber-optic analog signal isolation converter
    高精度高电压模拟量光纤隔离变换器的实现
    Configuration and Debugging of Analog Signal Input and Output Module of SLC500~(TM)PLC
    SLC500~(TM)PLC模拟量输入输出模块的配置及调试
    System of Multi Analog Signal Convertion Based on Single Chip 89C51
    基于单片机89C51的多路模拟量转换系统
    Design of Analog Signal Output Board Based on Serial DAC8420 Chip
    基于串行DAC8420芯片的模拟量输出卡设计
    The Introduction CS5534 A/D Converter And Application Of It On High Precision Analog Signal Collection Board
    CS5534型A/D转换器及其在高精度模拟量采集卡中的应用
    Prevention of Sudden Change False Protection of Analog Signal
    模拟量信号突变误发保护动作的预防
    4 analog signal data output passways(4~20mA), every of them can be set as a certain analog signal's close ring control output passway.
    4路模拟量输出(4~20mA)通道,每一路均可设定为某一路模拟量输入的闭环控制输出。
    TI's TMS320LF2407 is selected as core processor in ERT, and analog signal is converted by TMS320LF2407's internal ADC.
    ERT模块选用TI公司的DSP芯片TMS320LF2407作核心处理器,模拟量经过调理电路后由TMS320LF2407自带的模/数转换器进行转换和处理。
    By this intelligent measurement, 4 ways analog signal and 4 ways switch signal (now international norm voltage and current signal 0-5mA, 4-20mA and 1-5V) can be acquired, transferred, displayed and give warning to defect.
    该装置具有对4路模拟量(目前国际规范电压电流信号0-5mA,4-20mA和1-5V)和4路开关量进行采集、传输,显示以及故障报警的功能。
    By this data-acquisition system, 1-5V analog signal and 8-channel switch signal can be collected, and the control of switch signal and 1-5V analog signal output can be realized.
    该系统能够对1~5V的模拟量进行采集,能采集8路开关量,能够输出1~5V的模拟量,还能进行开关量控制。
    To program assemble language control software of the Analog Signal Input Card and debug on the SUPER ICE 16 simulator;
    编写模拟量输入卡汇编语言控制程序,在SUPER ICE16仿真器上编译调试;
    The communicate controller was made up of ATMEGA128L and RTL8019AS, realized of technique based on embedded Internet. The communicate controller could achieve bi-directional conversion between RS232, digital signal, analog signal and Internet, and also realized remote monitoring of NC machine tool based on Web.
    通信控制器由ATMEGA12 8L和RTL80 19AS构成 ,采用嵌入式Internet技术实现 ,可以完成数控机床RS2 3 2接口数据、开关量和模拟量信号到Internet的双向转换并能实现基于Web方式的数控机床远程控制。
    According to the characteristics of high speed fixed-point DSP TMS320VC5409,a method is presented for using serial A/D converter TLV2548 as analog signal input of the DSP system. It solves the problem that the parallel data transmission can not cooperate with DSP system.
    根据高速定点DSP芯片TMS320VC5409的特点,提出使用串行A/D转换器TLV2548作为DSP系统模拟量输入部分,解决了以往基于并行数据传输的A/D转换器不能与高速DSP进行很好配合的问题.
    Measurement and control the system of this text has 32 analog signal input passways, 32 signals circulates to sample once within 2 seconds. Its measure precision is superior to 0.2%.
    本文测控系统有32个模拟量输入通道,32路信号在2秒钟内循环采样一次,测量精度优于0.2%。
    For the purpose of testing the function of extended ports, digital-to-analog conversion and analog-to-digital conversion, an auxiliary experiment board is made, it includes analog signal outputs, switch signal outputs, LED circuit, eight-segment nixie tubes and a digital-to-analog conversion circuit.
    为了验证扩展口、A/D转换和D/A功能,还自己制作一个包括8路模拟量输入、开关量输入、8路LED、4个数码管和D/A转换电路辅助电路板。
    All the function cards MSCIS interface system, including intelligent Communication Card and Control Card based on CAN bus, Analog Signal Input Card, AnalogSignal Output Card, Digital Signal Input/Output Card, have already debugged and operated normally. It met the research goal on the development of the MSCIS interface control system.
    目前MSCIS接口系统中的各个板卡包括基于CAN总线智能通信卡和控制卡,模拟量输入卡,模拟量输出卡及数字量输入/输出卡都已调试运行正常,基本实现MSCIS接口系统研制开发目标。
    This paper is based on development of the intelligent Communication Card and the Analog Signal Input Card of MSCIS interface system.
    论文是在研制MSCIS接口系统的CAN总线智能通信卡(CCOM)和模拟量输入卡(AI)基础上完成的。
 

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