JPS5596418A - Electromagnetic flow meter - Google Patents
Electromagnetic flow meterInfo
- Publication number
- JPS5596418A JPS5596418A JP388279A JP388279A JPS5596418A JP S5596418 A JPS5596418 A JP S5596418A JP 388279 A JP388279 A JP 388279A JP 388279 A JP388279 A JP 388279A JP S5596418 A JPS5596418 A JP S5596418A
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- fluctuations
- voltage
- electrochemical
- component corresponding
- 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 improve the reliability of an indication value on an electromagnetic flow meter, by measuring a level, from which a component corresponding to fluctuations of an electrochemical valtage is removed, using a switch circuit and an AC amplifier of a comparatively high low-range cut-off frequency.
CONSTITUTION: A pair of electrodes 2, 2 are connected with a voltage level measuring circuit 7 through a switch circuit 5 and an AC amplifier 6. The AC amplifier 6 has on its input side coupling capacitors 6a, 6a of a low capacity, and the cut-off frequency of the amplifier 6 has a selected level which permits removing a component corresponding to fluctuations of an electrochemical voltage. A timing control circuit 8 is adapted to controll a power source 4 of a current of a rectangular wave- form, and supplies pulses to the switch circuit 5 and a voltage level measuring circuit. A component corresponding to fluctuations of an electrochemical voltage is superposed on voltages obtained from the electrodes 2, 2. However, when these voltages are applied to the AC amplifier, a signal including no such a component as mentioned above can be obtained. The level of this signal is determined by a voltage level measuring means 7 using a sampling pulse. Thus, the flow rate of a fluid can be measured accurately.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP388279A JPS5596418A (en) | 1979-01-19 | 1979-01-19 | Electromagnetic flow meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP388279A JPS5596418A (en) | 1979-01-19 | 1979-01-19 | Electromagnetic flow meter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5596418A true JPS5596418A (en) | 1980-07-22 |
Family
ID=11569544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP388279A Pending JPS5596418A (en) | 1979-01-19 | 1979-01-19 | Electromagnetic flow meter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5596418A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6249970B1 (en) | 1997-02-19 | 2001-06-26 | Breed Automotive Technology, Inc. | Methods of making a motor vehicle steering wheel |
-
1979
- 1979-01-19 JP JP388279A patent/JPS5596418A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6249970B1 (en) | 1997-02-19 | 2001-06-26 | Breed Automotive Technology, Inc. | Methods of making a motor vehicle steering wheel |
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