A new method, on-line measurement of the density of natural gas, has been established by researching on vibrating element density transducer tests.
前言：通过应用振动式密度计试验研究，在国内建立起一种天然气密度在线测量的新方法。
A new method, on-line measurement of the density of natural gas, has been established by researching on vibrating element density transducer tests.
通过应用振动式密度计试验研究，在国内建立起一种天然气密度在线测量的新方法。
The working principle of the apparatus, its density controller, its microwave transducer, and the hardware and software of its digital display unit are described in detail.
文中阐述了仪器的工作原理、密度控制器、微波传感器、数字显示单元硬件与软件，并给出实验结果。
The paper presents the design of the methane transducer taking PIC16F877 as the core, which can measure the methane density of the colliery accurately.
介绍了以PIC16F877单片机为核心的甲烷传感器的设计，用于准确测量煤矿井下甲烷浓度。
The paper presents the design of the methane transducer taking PIC16F877 as the core, which can measure the methane density of the colliery accurately.
介绍了以PIC16F877单片机为核心的甲烷传感器的设计，用于准确测量煤矿井下甲烷浓度。
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