【摘要】 采用新型电路“调制解调器双二次型滤波器”研制了插入式电磁流量计 ,详细介绍了电路设计及关键问题的处理方法。实测表明 ,该插入式电磁流量计的性能指标基本达到了国外同类产品的指标更多还原

【Abstract】 An insertion electromagnetic flowmeter is developed by using new circuitary modulation and demodulation as well as bi-quad filter. The design of circuits and the solutions to critical issues are introduced in detail. The practical tests show that the specifications of this insertion flowmeter reached the same level of similar foreign products.更多还原