JPH01168829U - - Google Patents
Info
- Publication number
- JPH01168829U JPH01168829U JP6630388U JP6630388U JPH01168829U JP H01168829 U JPH01168829 U JP H01168829U JP 6630388 U JP6630388 U JP 6630388U JP 6630388 U JP6630388 U JP 6630388U JP H01168829 U JPH01168829 U JP H01168829U
- Authority
- JP
- Japan
- Prior art keywords
- excitation
- electrodes
- circuit
- flow
- shared
- 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
- 230000005284 excitation Effects 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 3
- 238000009795 derivation Methods 0.000 claims 1
- 230000000737 periodic effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図は、この考案の一実施例を示す電磁流量
計のブロツク図、第２図は、同電磁流量計の励磁
電流を説明するための信号タイムチヤート、第３
図は従来の電磁流量計のブロツク図である。
１：流体管、２ａ，２ｂ：電極、３ａ，３ｂ：
励磁コイル、４：励磁回路、５，１５：アンプ、
７：ＣＰＵ、２０，３０：計器ユニツト。
Fig. 1 is a block diagram of an electromagnetic flowmeter showing an embodiment of this invention, Fig. 2 is a signal time chart for explaining the excitation current of the electromagnetic flowmeter, and Fig. 3
The figure is a block diagram of a conventional electromagnetic flowmeter. 1: Fluid pipe, 2a, 2b: Electrode, 3a, 3b:
Excitation coil, 4: Excitation circuit, 5, 15: Amplifier,
7: CPU, 20, 30: Instrument unit.
Claims (1)
れる一対の電極と、前記流体管の軸方向及び電極
方向に直交する方向に磁界を印加する励磁コイル
と、この励磁コイルに低周波の周期電流を流す励
磁回路と、前記一対の電極間に誘起する流量に応
じた電圧を導出する電圧導出回路とを備える計器
ユニツトの複数個が設けられる電磁流量計におい
て、 前記各計器ユニツトの励磁回路は、一個の励磁
回路で共用し、この共用の励磁回路により、前記
各励磁コイルに励磁電流を流すようにしたことを
特徴とする電磁流量計。[Claims for Utility Model Registration] A pair of electrodes exposed on the inner wall of a fluid pipe and provided facing each other, an excitation coil that applies a magnetic field in a direction perpendicular to the axial direction of the fluid pipe and the direction of the electrodes; An electromagnetic flowmeter provided with a plurality of instrument units each including an excitation circuit that causes a low-frequency periodic current to flow through an excitation coil, and a voltage derivation circuit that derives a voltage according to the flow rate induced between the pair of electrodes, An electromagnetic flowmeter characterized in that the excitation circuits of each meter unit are shared by one excitation circuit, and this shared excitation circuit causes an excitation current to flow through each of the excitation coils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6630388U JPH01168829U (en) | 1988-05-19 | 1988-05-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6630388U JPH01168829U (en) | 1988-05-19 | 1988-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01168829U true JPH01168829U (en) | 1989-11-28 |
Family
ID=31291710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6630388U Pending JPH01168829U (en) | 1988-05-19 | 1988-05-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01168829U (en) |
-
1988
- 1988-05-19 JP JP6630388U patent/JPH01168829U/ja active Pending
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