JPS5554409A - Electromagnetic flow meter - Google Patents
Electromagnetic flow meterInfo
- Publication number
- JPS5554409A JPS5554409A JP10802279A JP10802279A JPS5554409A JP S5554409 A JPS5554409 A JP S5554409A JP 10802279 A JP10802279 A JP 10802279A JP 10802279 A JP10802279 A JP 10802279A JP S5554409 A JPS5554409 A JP S5554409A
- Authority
- JP
- Japan
- Prior art keywords
- electrodes
- velocity
- flow
- magnetic field
- magnetic
- 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
- 239000012530 fluid Substances 0.000 abstract 3
- 230000007423 decrease Effects 0.000 abstract 1
- 230000005284 excitation Effects 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
Landscapes
- Measuring Volume Flow (AREA)
Abstract
PURPOSE: To obtain an instrument with extremely-low non-linearity of an electromagnetic flow meter by providing a magnetic adjuster whose magnetic intensity decreases as a difference in potential between opposing electrodes increases.
CONSTITUTION: On the external surface of tube 1 where a fluid flows, a couple of electrodes 2 and 3 are provided by welding and amplifiers 4 and 6, excitation coil 5 providing the fluid with a magnetic field, current adjuster 7, current detector 8, and divider circuit 9 are arranged. The output of current detector 8 is applied as a divisor to divider circuit 9 and that of amplifier 4 is as a dividend to divider 9. Since a difference in potential between a couple of electrodes 2 is the product of the velocity of flow and the magnetic field, the output of divider circuit 9 is a signal of only the velocity of flow with an influence of the magnetic flield removed from outputs of electrodes 2. The difference in potential appearing across electrodes 2 and 3 is nearly constant without reference to the velocity of flow and as the velocity of flow increases, the magnetic field becomes slight, so that non-linearity based upon mutual operation between the fluid and magnetic field will lessen.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10802279A JPS5554409A (en) | 1979-08-23 | 1979-08-23 | Electromagnetic flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10802279A JPS5554409A (en) | 1979-08-23 | 1979-08-23 | Electromagnetic flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5554409A true JPS5554409A (en) | 1980-04-21 |
Family
ID=14473982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10802279A Pending JPS5554409A (en) | 1979-08-23 | 1979-08-23 | Electromagnetic flow meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5554409A (en) |
-
1979
- 1979-08-23 JP JP10802279A patent/JPS5554409A/en active Pending
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