发明名称 |
Electromagnetic flowmeter |
摘要 |
An electromagnetic flowmeter includes a coil, exciting section, noise eliminating section, and arithmetic processing section. The coil applies a magnetic field to a fluid flowing in a pipe line. The exciting section supplies an exciting current to the coil. The noise eliminating section eliminates noise from a measurement signal detected from the fluid under excitation by using a differential frequency component between a commercial power frequency and an exciting frequency. The arithmetic processing section calculates a measurement flow rate on the basis of the measurement signal output from the noise eliminating section.
|
申请公布号 |
US2004035180(A1) |
申请公布日期 |
2004.02.26 |
申请号 |
US20030414917 |
申请日期 |
2003.04.15 |
申请人 |
OKUDA KOUJI;SUZUKI SHIN;MITSUTAKE ICHIRO |
发明人 |
OKUDA KOUJI;SUZUKI SHIN;MITSUTAKE ICHIRO |
分类号 |
G01F1/60;(IPC1-7):G01N19/02 |
主分类号 |
G01F1/60 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|