JPS59109923U - Electromagnetic flowmeter with low frequency excitation method - Google Patents
Electromagnetic flowmeter with low frequency excitation methodInfo
- Publication number
- JPS59109923U JPS59109923U JP290483U JP290483U JPS59109923U JP S59109923 U JPS59109923 U JP S59109923U JP 290483 U JP290483 U JP 290483U JP 290483 U JP290483 U JP 290483U JP S59109923 U JPS59109923 U JP S59109923U
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic flowmeter
- set voltage
- frequency excitation
- generates
- output
- 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
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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案電磁流量計の一実施例を示す接続図、第
２図はそめ動作説明のための波形図、第３図および第４
図は本考案電磁流量計の他の実施例を示す接続図である
。
１・・・・・・電磁流量計発信器、２・・・・・・励磁
回路、３・・・・・・設定電圧源、４・・・・・・信号
処理回路、５・・・・・・パルス発生向路。 ′Fig. 1 is a connection diagram showing one embodiment of the electromagnetic flowmeter of the present invention, Fig. 2 is a waveform diagram for explaining the horizontal operation, and Figs. 3 and 4.
The figure is a connection diagram showing another embodiment of the electromagnetic flowmeter of the present invention. 1... Electromagnetic flowmeter transmitter, 2... Excitation circuit, 3... Setting voltage source, 4... Signal processing circuit, 5... ...Pulse generation direction. ′
Claims (1)
ルに設定電圧に応じた振幅の低周波励磁電流を供給する
励磁回路と、ツェナーダイオードを用いそのツェナー重
重に基づ（−）だ前記設定電圧を兇生する設定電圧源と
、前記電磁流量計発信器の一対の電極間の発生電圧を増
幅器で増幅し、た電圧と巳の増幅した電圧をさらに反転
増幅器で反転した電圧とを前記励磁電流と同期して一定
時間ずつ積分し、前記増幅器出力と前記反転増幅器出力
との差に関連した積分出力を生ずる積分器と、この積分
器にリセットスイッチを介して前記設定電圧源からのツ
ェナー電圧を印加し、前記積分出力をリセットし、リセ
ット時間幅に関連した出力信号を発生する回路とを具え
た低周波励磁方式の電磁流量計。An electromagnetic flowmeter transmitter, an excitation circuit that supplies a low-frequency excitation current with an amplitude corresponding to a set voltage to the excitation coil of the electromagnetic flowmeter transmitter, and a Zener diode are used. A set voltage source that generates a set voltage and a voltage generated between a pair of electrodes of the electromagnetic flowmeter transmitter are amplified by an amplifier, and the amplified voltage is further inverted by an inverting amplifier. an integrator that integrates for a certain period of time in synchronization with the excitation current and generates an integral output related to the difference between the amplifier output and the inverting amplifier output; and a zener from the set voltage source to the integrator via a reset switch. A low frequency excitation type electromagnetic flowmeter comprising a circuit that applies a voltage, resets the integral output, and generates an output signal related to a reset time width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP290483U JPS59109923U (en) | 1983-01-13 | 1983-01-13 | Electromagnetic flowmeter with low frequency excitation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP290483U JPS59109923U (en) | 1983-01-13 | 1983-01-13 | Electromagnetic flowmeter with low frequency excitation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59109923U true JPS59109923U (en) | 1984-07-24 |
| JPH0450496Y2 JPH0450496Y2 (en) | 1992-11-27 |
Family
ID=30134548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP290483U Granted JPS59109923U (en) | 1983-01-13 | 1983-01-13 | Electromagnetic flowmeter with low frequency excitation method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59109923U (en) |
-
1983
- 1983-01-13 JP JP290483U patent/JPS59109923U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0450496Y2 (en) | 1992-11-27 |
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