JPH0177923U - - Google Patents
Info
- Publication number
- JPH0177923U JPH0177923U JP1987173206U JP17320687U JPH0177923U JP H0177923 U JPH0177923 U JP H0177923U JP 1987173206 U JP1987173206 U JP 1987173206U JP 17320687 U JP17320687 U JP 17320687U JP H0177923 U JPH0177923 U JP H0177923U
- Authority
- JP
- Japan
- Prior art keywords
- flow rate
- signal
- converter
- control signal
- detector
- 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.)
- Granted
Links
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
Description
第１図は本考案の１実施例の構成を示すブロツ
ク図、第２図は第１図に示す実施例の動作を説明
する動作説明図、第３図は第１図に示す実施例の
誤差の発生状況を説明する誤差曲線図、第４図は
本考案の第２の実施例の構成を説明する要部ブロ
ツク図、第５図は本考案の第３の実施例の構成を
説明する要部ブロツク図、第６図は従来の電磁流
量計の構成を示す要部ブロツク図である。
１０，１２…検出器、１１，１３…変換器、Ｑ
１，Ｑ３，Ｑ５…演算増幅器、Ｑ２…信号処理回
路、Ｑ４…比較器、ＩＮ１〜ＩＮ４…入力回路。
Fig. 1 is a block diagram showing the configuration of one embodiment of the present invention, Fig. 2 is an operation explanatory diagram explaining the operation of the embodiment shown in Fig. 1, and Fig. 3 is an error diagram of the embodiment shown in Fig. 1. 4 is a main block diagram explaining the configuration of the second embodiment of the present invention, and FIG. 5 is an essential block diagram explaining the configuration of the third embodiment of the present invention. Part Block Diagram FIG. 6 is a main part block diagram showing the configuration of a conventional electromagnetic flowmeter. 10, 12...Detector, 11, 13...Converter, Q
1 , Q3 , Q5 ... operational amplifier, Q2 ... signal processing circuit, Q4 ... comparator, IN1 to IN4 ... input circuit.
Claims (1)
とこの流量信号が入力されこれをインピーダンス
変換その他の信号処理をして流量出力に変換する
変換器とを有する電磁流量計において、所定の流
量設定値と前記流量信号に関連する信号とを比較
してこの信号が前記流量設定値より小さいときに
制御信号を出力する比較手段と、前記変換器の入
力端と共通電位点との間に並列に挿入され前記制
御信号により自己の内部インピーダンスを小さく
切替える入力回路とを具備することを特徴とする
電磁流量計。 In an electromagnetic flowmeter that has a detector that detects the flow rate and outputs it as a flow rate signal, and a converter that receives this flow rate signal and converts it into a flow rate output through impedance conversion and other signal processing, it is possible to set a predetermined flow rate setting value. and a signal related to the flow rate signal and outputting a control signal when this signal is smaller than the flow rate set value, and a comparison means is inserted in parallel between the input end of the converter and a common potential point. and an input circuit that switches its own internal impedance to a small value based on the control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17320687U JPH067321Y2 (en) | 1987-11-12 | 1987-11-12 | Electromagnetic flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17320687U JPH067321Y2 (en) | 1987-11-12 | 1987-11-12 | Electromagnetic flow meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0177923U true JPH0177923U (en) | 1989-05-25 |
| JPH067321Y2 JPH067321Y2 (en) | 1994-02-23 |
Family
ID=31465137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17320687U Expired - Lifetime JPH067321Y2 (en) | 1987-11-12 | 1987-11-12 | Electromagnetic flow meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH067321Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010096605A (en) * | 2008-10-16 | 2010-04-30 | Yokogawa Electric Corp | Electromagnetic flowmeter |
| US8686472B2 (en) | 2008-10-02 | 2014-04-01 | Sumitomo Chemical Company, Limited | Semiconductor substrate, electronic device and method for manufacturing semiconductor substrate |
-
1987
- 1987-11-12 JP JP17320687U patent/JPH067321Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8686472B2 (en) | 2008-10-02 | 2014-04-01 | Sumitomo Chemical Company, Limited | Semiconductor substrate, electronic device and method for manufacturing semiconductor substrate |
| JP2010096605A (en) * | 2008-10-16 | 2010-04-30 | Yokogawa Electric Corp | Electromagnetic flowmeter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH067321Y2 (en) | 1994-02-23 |
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