JPH0184021U - - Google Patents
Info
- Publication number
- JPH0184021U JPH0184021U JP1987179565U JP17956587U JPH0184021U JP H0184021 U JPH0184021 U JP H0184021U JP 1987179565 U JP1987179565 U JP 1987179565U JP 17956587 U JP17956587 U JP 17956587U JP H0184021 U JPH0184021 U JP H0184021U
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- converter
- flow rate
- piping
- rate signal
- 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
- 239000012530 fluid Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- 230000005279 excitation period Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
第１図は本案を示すブロツクダイアグラム図、
第２図、第３図は従来例を示す図、第４図は本案
の実施例を示す図、第５図は励磁周期を示す図、
第６図は励磁周期と濃度電気信号を示す図である
。
１……添加薬品、２……注入口、３……電磁流
量計、４……流体、５……濃度計、６……流量表
示器、７……乗算器、８……薬品量表示器、９…
…配管、１０……電磁コイル、１１……電極、１
２……微少電圧増幅器、１３……Ａ／Ｄ変換器、
１４……マイクロプロセツサ、１５……Ｄ／Ａ変
換器、１６……出力表示回路、１７……励磁回路
、１８……アナログスイツチ、１９……高抵抗、
２０……安定化電源、２１……ログアンプ、２２
……換算器、２３……流量薬品量表示器。
Figure 1 is a block diagram showing the main idea.
2 and 3 are diagrams showing a conventional example, FIG. 4 is a diagram showing an embodiment of the present invention, and FIG. 5 is a diagram showing an excitation period.
FIG. 6 is a diagram showing the excitation period and the concentration electric signal. 1... Additive chemical, 2... Inlet, 3... Electromagnetic flow meter, 4... Fluid, 5... Concentration meter, 6... Flow rate indicator, 7... Multiplier, 8... Chemical amount indicator ,9...
...Piping, 10...Electromagnetic coil, 11...Electrode, 1
2...Microvoltage amplifier, 13...A/D converter,
14... Microprocessor, 15... D/A converter, 16... Output display circuit, 17... Excitation circuit, 18... Analog switch, 19... High resistance,
20...Stabilized power supply, 21...Log amplifier, 22
...Converter, 23...Flow rate chemical amount indicator.
Claims (1)
いずれとも直交する磁界を発生する電極コイルと
電極に発生する流量電気信号を演算増幅し、流量
信号に変換する変換器とから成る電磁流量計にお
いて、マイクロプロセツサで制御されたアナログ
スイツチで切替えて、検出電極に高抵抗を介して
安定化電源で電流を流し、電極両端の電圧から、
ログアンプと換算器により流体濃度を計測するこ
とを特徴とする電磁流量計。 An electromagnetic flowmeter consisting of a pair of detection electrodes on the piping, an electrode coil that generates a magnetic field perpendicular to both the piping axis and the detection electrode axis, and a converter that operationally amplifies the electrical flow rate signal generated at the electrode and converts it into a flow rate signal. In this case, an analog switch controlled by a microprocessor is used to apply a current to the detection electrode using a stabilized power supply through a high resistance, and from the voltage across the electrode,
An electromagnetic flowmeter that measures fluid concentration using a log amplifier and a converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987179565U JPH0184021U (en) | 1987-11-27 | 1987-11-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987179565U JPH0184021U (en) | 1987-11-27 | 1987-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0184021U true JPH0184021U (en) | 1989-06-05 |
Family
ID=31471112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987179565U Pending JPH0184021U (en) | 1987-11-27 | 1987-11-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0184021U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008302239A (en) * | 2001-11-30 | 2008-12-18 | Bausch & Lomb Inc | Aspiration flow meter and control |
| JP2012511936A (en) * | 2007-12-19 | 2012-05-31 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Liquid extractor |
-
1987
- 1987-11-27 JP JP1987179565U patent/JPH0184021U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008302239A (en) * | 2001-11-30 | 2008-12-18 | Bausch & Lomb Inc | Aspiration flow meter and control |
| JP2012511936A (en) * | 2007-12-19 | 2012-05-31 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Liquid extractor |
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