一种新型电磁流量计转换器

The Converter of a New Type of Electric-Magnetic Flowmeter

文章介绍了一种新型电磁流量计转换器,它应用新型交流励磁方式,产生高励磁电流和高励磁频率,得到高信噪比和快速的时间响应。转换器内的新型噪声抑制电路,消除了一般形式噪声、瞬变介质噪声和杂散电流电压噪声的影响。

The new type converter of electric-magnetic flowmeter uses a new AC excitation, which provides a high excitationcurrent and high excitation frequency, produces a high signalnoise ratio and a fast time response. The converter uses a new typeof noise countervailence circuitry, which virtually eliminates any adverse affect of common mode voltage、fast actting media noisevoltage, and eddy currents superimposed on the flow signal.