JPS5563716A - Electromagnetic flow-meter - Google Patents
Electromagnetic flow-meterInfo
- Publication number
- JPS5563716A JPS5563716A JP13702578A JP13702578A JPS5563716A JP S5563716 A JPS5563716 A JP S5563716A JP 13702578 A JP13702578 A JP 13702578A JP 13702578 A JP13702578 A JP 13702578A JP S5563716 A JPS5563716 A JP S5563716A
- Authority
- JP
- Japan
- Prior art keywords
- exciting
- signals
- coils
- thermal
- electromotive force
- 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 eliminate effect due to thermal, electromotive force, by totally using electric means without employing mechanical constitution, in this electromagnetic flow-meter for a high temperature conductive fluid.
CONSTITUTION: Exciting currents are supplied to exciting coils 13a, 13b through an exciting signal switching appliance 15 for changing over said coils in series and in parallel from an exciting power source 14. An output signal switching appliance 16 is interlocked with the exciting signal switching appliance 15, selects hold circuits 17a, 17b and holds the outut signals of a pair of electrodes 11a, 11b. Hold signals Sa in the case when the coils are connected in series and hold signals Sb in the case when thdy are connected in parallel are shown in formulae Sa=2AX+B and Sb=AX+B (where, A: a constant regarding exciting currents, X: a flow rate, B: thermal, electromotive force), and are fixed in change-over measurement for a short time. Original flow-rate signals AX that thermal, electromotive force B is removed are obtained by operating Sa-Sb by means of a computing element 18.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13702578A JPS5563716A (en) | 1978-11-07 | 1978-11-07 | Electromagnetic flow-meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13702578A JPS5563716A (en) | 1978-11-07 | 1978-11-07 | Electromagnetic flow-meter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5563716A true JPS5563716A (en) | 1980-05-14 |
Family
ID=15189073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13702578A Pending JPS5563716A (en) | 1978-11-07 | 1978-11-07 | Electromagnetic flow-meter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5563716A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59147220A (en) * | 1983-02-14 | 1984-08-23 | Sukegawa Denki Kogyo Kk | Thermoelectric power compensating apparatus of electromagnetic flow meter for molten metal |
-
1978
- 1978-11-07 JP JP13702578A patent/JPS5563716A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59147220A (en) * | 1983-02-14 | 1984-08-23 | Sukegawa Denki Kogyo Kk | Thermoelectric power compensating apparatus of electromagnetic flow meter for molten metal |
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