JPS6453925U - - Google Patents
Info
- Publication number
- JPS6453925U JPS6453925U JP15020687U JP15020687U JPS6453925U JP S6453925 U JPS6453925 U JP S6453925U JP 15020687 U JP15020687 U JP 15020687U JP 15020687 U JP15020687 U JP 15020687U JP S6453925 U JPS6453925 U JP S6453925U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- fluid
- signal
- outputs
- flow rate
- 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 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図は本考案に係わる電磁流量計の一実施例
を示す回路図、第２図はその動作を説明するため
のタイムチヤート、第３図は従来の電磁流量計を
示す回路図である。
１…管路、２…励磁コイル、３，４…電極、５
…検出器、６…定電流源、７…励磁回路、８…タ
イミング信号発生回路、９，１０，１１…演算増
幅器、１２……サンプルホールド回路、１３……
直流増幅器、１４ａ，１４ｂ…比較器、１５…ス
イツチ回路、１６…インバータ、１７…オア回路
、Ｒ１〜Ｒ６…抵抗、Ｅ１，Ｅ２…基準電源。
FIG. 1 is a circuit diagram showing an embodiment of an electromagnetic flowmeter according to the present invention, FIG. 2 is a time chart for explaining its operation, and FIG. 3 is a circuit diagram showing a conventional electromagnetic flowmeter. 1... Conduit, 2... Excitation coil, 3, 4... Electrode, 5
...Detector, 6... Constant current source, 7... Excitation circuit, 8... Timing signal generation circuit, 9, 10, 11... Operational amplifier, 12... Sample hold circuit, 13...
DC amplifier, 14a, 14b... Comparator, 15... Switch circuit, 16... Inverter, 17... OR circuit, R1 to R6... Resistor, E1, E2... Reference power supply.
Claims (1)
量信号の電圧と等しい電圧の信号を出力し、流体
が無くなつた時は電源の電圧と等しい電圧の信号
を出力する初段増幅器と、この初段増幅器の出力
電圧と基準電圧とを比較して流体が無くなつた時
に出力を零とする判定手段とを備えたことを特徴
とする電磁流量計。 a first stage amplifier that amplifies the flow rate signal and outputs a signal with a voltage equal to the voltage of the flow rate signal when there is fluid, and outputs a signal with a voltage equal to the voltage of the power supply when there is no fluid; An electromagnetic flowmeter characterized by comprising a determination means for comparing the output voltage of the amplifier with a reference voltage and setting the output to zero when the fluid runs out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15020687U JPS6453925U (en) | 1987-09-30 | 1987-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15020687U JPS6453925U (en) | 1987-09-30 | 1987-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6453925U true JPS6453925U (en) | 1989-04-03 |
Family
ID=31423138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15020687U Pending JPS6453925U (en) | 1987-09-30 | 1987-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6453925U (en) |
-
1987
- 1987-09-30 JP JP15020687U patent/JPS6453925U/ja active Pending
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