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实用新型
CN207215222U 一种质量流量计的数字通信装置及质量流量计 有权

一种质量流量计的数字通信装置及质量流量计
摘要：
本实用新型公开了一种质量流量计的数字通信装置及质量流量计。该数字通信装置包括：微处理器、HART调制解调器和数模转换器，微处理器连接至数模转换器与HART调制解调器，用于向数模转换器发送第一数据以及向HART调制解调器发送第二数据；HART调制解调器连接至数模转换器，用于对第二数据进行调制，向数模转换器发送调制后的信号；数模转换器用于对第一数据进行处理，得到模拟电流信号，叠加输出模拟电流信号和所述调制后的信号。本实用新型能够在兼容传统的模拟系统同时，利用数字通信实现多参数传输，在一条电缆线上叠加传输模拟信号和数字信号，两者互不干扰，另外，采用叠加输出使得现有质量流量计的现场改造成本较低。(ESM)同样的发明创造已同日申请发明专利
摘要（英）：

The utility model discloses a mass flow meter's digital communication device and mass flow meter. This digital communication device includes: microprocessor, HART modem and digital analog converter, microprocessor are connected to digital analog converter and HART modem for send first data and send the second data to HART modem to digital analog converter, HART modulator -demodulator connection isto digital analog converter for to second data modulate, send the signal after the modulation to digital analog converter, digital analog converter is used for handling first data, obtains analog current signal, stack output analog current signal with signal after the modulation. The utility model discloses can utilize digital communication to realize many parameter transmission in the analog system while that the compatibility is traditional, analog signal and data signal be transmitted in the stack on a cable conductor, both mutual noninterferences, and in addition, it is lower that the cost is transformed at the feasible mass flow meter's of having now of adoption stack output scene.

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