JPS5728212A - Electromagnetic flowmeter - Google Patents
Electromagnetic flowmeterInfo
- Publication number
- JPS5728212A JPS5728212A JP10267480A JP10267480A JPS5728212A JP S5728212 A JPS5728212 A JP S5728212A JP 10267480 A JP10267480 A JP 10267480A JP 10267480 A JP10267480 A JP 10267480A JP S5728212 A JPS5728212 A JP S5728212A
- Authority
- JP
- Japan
- Prior art keywords
- inductance
- excitation coil
- amplifier
- flow
- outputting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
- G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
- G01F1/60—Circuits therefor
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
PURPOSE:To measure accurately only a flow speed regardless of the concentration of an included magnetic substance and composition thereof by correcting and outputting a flow signal according to a measured value of inductance of an excitation coil. CONSTITUTION:The device is constituted by an insulated conduit tube 1, an excitation coil 3 that generates a magnetic field crossing, at right angles, the flow direction of a fluid, electrodes 5a, 5b prepared in opposition to the insulated conduit tube 1 in the direction crossing, at right angles, both the flow direction of a fluid and the direction of a magnetic field, an amplifier 7 that amplifies signals from said electrodes 5a, 5b and an inductance measuring device 8 that measures inductance of the excitation coil 3. Further both outputs from the amplifier 7 and the inductance measuring device 8 are operated by a microporocesser 11, and the output from the amplifier 7 is divided by a value proportional to the inductance of the excitation coil 3, and thus by outputting the signal after dividing, a flow signal is corrected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10267480A JPS5728212A (en) | 1980-07-26 | 1980-07-26 | Electromagnetic flowmeter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10267480A JPS5728212A (en) | 1980-07-26 | 1980-07-26 | Electromagnetic flowmeter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5728212A true JPS5728212A (en) | 1982-02-15 |
Family
ID=14333771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10267480A Pending JPS5728212A (en) | 1980-07-26 | 1980-07-26 | Electromagnetic flowmeter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5728212A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58198724A (en) * | 1982-05-14 | 1983-11-18 | Yokogawa Hokushin Electric Corp | Converter of electromagnetic flow meter |
US5351554A (en) * | 1991-06-08 | 1994-10-04 | Endress + Hauser Flowtec Ag | Magnetoinductive flowmeter |
-
1980
- 1980-07-26 JP JP10267480A patent/JPS5728212A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58198724A (en) * | 1982-05-14 | 1983-11-18 | Yokogawa Hokushin Electric Corp | Converter of electromagnetic flow meter |
US5351554A (en) * | 1991-06-08 | 1994-10-04 | Endress + Hauser Flowtec Ag | Magnetoinductive flowmeter |
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