JPS6453923U - - Google Patents
Info
- Publication number
- JPS6453923U JPS6453923U JP14986387U JP14986387U JPS6453923U JP S6453923 U JPS6453923 U JP S6453923U JP 14986387 U JP14986387 U JP 14986387U JP 14986387 U JP14986387 U JP 14986387U JP S6453923 U JPS6453923 U JP S6453923U
- Authority
- JP
- Japan
- Prior art keywords
- pair
- electrodes
- amplifier
- amplifiers
- 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
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図は本考案の１実施例の要部の構成を示す
ブロツク図、第２図は本考案の第２の実施例の要
部を示すブロツク図、第３図は本考案の第３の実
施例の要部を示すブロツク図、第４図は従来の電
磁流量計の変換部の初段の近傍の構成を示す構成
図である。
１０，１１…電極、１２…共通電位点、１３…
信号ケーブル、１４，１５…心線、１６，１７…
内側シールド、１９，２０…演算増幅器、２１…
差動増幅器、２３…増幅器。
Fig. 1 is a block diagram showing the configuration of the main part of one embodiment of the present invention, Fig. 2 is a block diagram showing the main part of the second embodiment of the invention, and Fig. 3 is a block diagram showing the main part of the second embodiment of the invention. FIG. 4 is a block diagram showing the main parts of the embodiment. FIG. 4 is a configuration diagram showing the configuration near the first stage of the conversion section of a conventional electromagnetic flowmeter. 10, 11...electrode, 12...common potential point, 13...
Signal cable, 14, 15... Core wire, 16, 17...
Inner shield, 19, 20... operational amplifier, 21...
Differential amplifier, 23...amplifier.
Claims (1)
極と、この一対の電極からの各リード線に沿いこ
のリード線を絶縁して囲んだガードと、前記各電
極で検出された起電力が加えられる高入力インピ
ーダンスの一対の増幅器と、この各増幅器の出力
を前記各リード線が接続された前記増幅器の入力
端の電位に対して若干小さな電圧に分圧する分圧
手段と、この分圧電圧を前記各ガードに一対の抵
抗を介して加える一対の接続手段と、前記一対の
増幅器の出力の差を演算する演算手段とを具備す
ることを特徴とする電磁流量計。 A pair of electrodes detects the electromotive force generated in the liquid to be measured, a guard insulates and surrounds the lead wires along each lead wire from the pair of electrodes, and the electromotive force detected by each of the electrodes is added. a pair of amplifiers with high input impedance, voltage dividing means for dividing the output of each amplifier into a voltage slightly smaller than the potential at the input terminal of the amplifier to which each lead wire is connected; An electromagnetic flowmeter characterized by comprising: a pair of connection means for connecting each of the guards via a pair of resistors; and a calculation means for calculating a difference between the outputs of the pair of amplifiers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14986387U JPS6453923U (en) | 1987-09-30 | 1987-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14986387U JPS6453923U (en) | 1987-09-30 | 1987-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6453923U true JPS6453923U (en) | 1989-04-03 |
Family
ID=31422482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14986387U Pending JPS6453923U (en) | 1987-09-30 | 1987-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6453923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004219372A (en) * | 2003-01-17 | 2004-08-05 | Yokogawa Electric Corp | Electromagnetic flow meter |
-
1987
- 1987-09-30 JP JP14986387U patent/JPS6453923U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004219372A (en) * | 2003-01-17 | 2004-08-05 | Yokogawa Electric Corp | Electromagnetic flow meter |
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