JPS5832426U - electromagnetic flow meter - Google Patents
electromagnetic flow meterInfo
- Publication number
- JPS5832426U JPS5832426U JP12846581U JP12846581U JPS5832426U JP S5832426 U JPS5832426 U JP S5832426U JP 12846581 U JP12846581 U JP 12846581U JP 12846581 U JP12846581 U JP 12846581U JP S5832426 U JPS5832426 U JP S5832426U
- Authority
- JP
- Japan
- Prior art keywords
- excitation coil
- electromagnetic flowmeter
- flow meter
- excitation
- wound
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の電磁流量計に使用される励磁コイルを示
す図、第２図はこの考案の一実施例を示す電磁流量計の
回路接続図、第３図は第２図実施例に使用される励磁コ
イルの構造を示す斜視図、第４図は第２図実施例回路の
動作を説明するための波形図、第５図はこの考案に使用
される励磁コイルの他の例を示す部分斜視図、第６図は
この考案の実施に使用される励磁回路の他の例を示す回
路接続図である。
１１・３１：直流電源、１２：切換回路、１３・３２：
切換スイッチ、１４ａ・１４ｂ：励磁コイル、１５：流
体管、１６ａ−１６ｂ：電極、１７：検出回路、１８ａ
・１８ａ：増幅器、１９ａ−１９ｂ：サンプリンクスイ
ッチ１．２０ａ・２０ｂ：ボールドコンデンサ、２１：
差動増幅器。Figure 1 is a diagram showing an excitation coil used in a conventional electromagnetic flowmeter, Figure 2 is a circuit connection diagram of an electromagnetic flowmeter showing an embodiment of this invention, and Figure 3 is used in the embodiment shown in Figure 2. 4 is a waveform diagram for explaining the operation of the embodiment circuit shown in FIG. 2, and FIG. 5 is a portion showing another example of the exciting coil used in this invention. The perspective view and FIG. 6 are circuit connection diagrams showing another example of the excitation circuit used for implementing this invention. 11/31: DC power supply, 12: Switching circuit, 13/32:
Changeover switch, 14a/14b: Excitation coil, 15: Fluid pipe, 16a-16b: Electrode, 17: Detection circuit, 18a
・18a: Amplifier, 19a-19b: Sampling link switch 1.20a/20b: Bold capacitor, 21:
Differential amplifier.
Claims (2)
り流体管内に設ける電極より流量に比例する信号を取出
す電磁流量計において、 前記励磁コイルを１ないし数ターン巻とするとともに励
磁用直流電源と励磁コイル間に商用周波数の整数分の１
の周波数で駆動される切替スイッチを設け、この切替ス
イッチによる駆動信号周期の１７２よりも短い期間前記
励磁コイルに励磁電流を流し、励磁電流が安定したとこ
ろで前記電極間に取り出される信号をサンプリング出力
することを特徴とする電磁流量計。(1) In an electromagnetic flowmeter that outputs a signal proportional to the flow rate from an electrode provided in the fluid pipe by applying a magnetic field to the fluid pipe with an excitation coil, the excitation coil is wound with one or several turns, and the excitation coil is connected to a DC power source for excitation. An integer fraction of the commercial frequency between the coils
A changeover switch that is driven at a frequency of An electromagnetic flowmeter characterized by:
を折曲げて巻回されるものであることを特徴とする実用
新案登録請求の範囲第１項記載の電磁流量計。(2) The electromagnetic flowmeter according to claim 1, wherein the excitation coil having one to several turns is wound by bending a strip-shaped copper plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12846581U JPS5832426U (en) | 1981-08-28 | 1981-08-28 | electromagnetic flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12846581U JPS5832426U (en) | 1981-08-28 | 1981-08-28 | electromagnetic flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5832426U true JPS5832426U (en) | 1983-03-03 |
Family
ID=29922162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12846581U Pending JPS5832426U (en) | 1981-08-28 | 1981-08-28 | electromagnetic flow meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5832426U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01147616U (en) * | 1988-03-30 | 1989-10-12 | ||
| JPH0265026U (en) * | 1988-10-28 | 1990-05-16 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5533685A (en) * | 1978-09-01 | 1980-03-08 | Yokogawa Hokushin Electric Corp | Electromagnetic flow meter |
-
1981
- 1981-08-28 JP JP12846581U patent/JPS5832426U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5533685A (en) * | 1978-09-01 | 1980-03-08 | Yokogawa Hokushin Electric Corp | Electromagnetic flow meter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01147616U (en) * | 1988-03-30 | 1989-10-12 | ||
| JPH0265026U (en) * | 1988-10-28 | 1990-05-16 |
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