JPS5599025A - Electromagnetic flow meter - Google Patents
Electromagnetic flow meterInfo
- Publication number
- JPS5599025A JPS5599025A JP696979A JP696979A JPS5599025A JP S5599025 A JPS5599025 A JP S5599025A JP 696979 A JP696979 A JP 696979A JP 696979 A JP696979 A JP 696979A JP S5599025 A JPS5599025 A JP S5599025A
- Authority
- JP
- Japan
- Prior art keywords
- signal voltage
- electrode
- switch
- electrochemical potential
- amplifier
- 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
Landscapes
- Measuring Volume Flow (AREA)
Abstract
PURPOSE: To measure flow rates accurately and stably, by minimizing the influence of an electrochemical potential occurring around a measuring electrode in an electromagnetic flow meter.
CONSTITUTION: A switch 16 is provided on an electrode 10 set on a pipe 2, and an amplifier 12, an operator 14 and a synchronizong signal generator 20 are further provided. When the switch 16 is colsed, an electrochemical potential which is grounded with a grounding conductor 18 and which occurs around the electrode 10 is suppressed to substantially zero. When the switch 16 is opened, an electric potential occurs but it can be suppressed to an extremely low noise. In the meantime, a signal voltage from an excitation control circuit 8 is input into the amplifier 12. This signal voltage includes such a noise as mentioned above having the opposite polarity. This signal voltage is input into the operator 14 to obtain a required signal voltage only. Thus, a flow rate can be measured accurately while suppressing to a minimal level the influence of an electrochemical potential occurring around the electrode.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP696979A JPS5599025A (en) | 1979-01-24 | 1979-01-24 | Electromagnetic flow meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP696979A JPS5599025A (en) | 1979-01-24 | 1979-01-24 | Electromagnetic flow meter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5599025A true JPS5599025A (en) | 1980-07-28 |
Family
ID=11653019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP696979A Pending JPS5599025A (en) | 1979-01-24 | 1979-01-24 | Electromagnetic flow meter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5599025A (en) |
-
1979
- 1979-01-24 JP JP696979A patent/JPS5599025A/en active Pending
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