JPH0214037U - - Google Patents
Info
- Publication number
- JPH0214037U JPH0214037U JP9189688U JP9189688U JPH0214037U JP H0214037 U JPH0214037 U JP H0214037U JP 9189688 U JP9189688 U JP 9189688U JP 9189688 U JP9189688 U JP 9189688U JP H0214037 U JPH0214037 U JP H0214037U
- Authority
- JP
- Japan
- Prior art keywords
- excitation
- circuit
- excitation current
- fluid
- amplifier
- 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
- 230000005284 excitation Effects 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims 3
- 230000004907 flux Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 101150030566 CCS1 gene Proteins 0.000 description 1
- 101100332461 Coffea arabica DXMT2 gene Proteins 0.000 description 1
- 101100341123 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) IRA2 gene Proteins 0.000 description 1
- 101150104736 ccsB gene Proteins 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図は本考案を定電流回路ＣＣＳを用いて実
現した場合の一実施例を表す回路図、第２図は本
考案を定電圧ＩＣを用いて実現した場合の他の一
実施例を表す回路図、第３図は本考案をトランジ
スタとツエナーダイオードとを用いて実現した場
合の他の一実施例を表す回路図、第４図は従来の
回路図である。
１…変換器、２…励磁回路、３…擬似入力装置
、４…増幅器、５…信号処理回路、ＣＣＳ１，Ｃ
ＣＳ２…定電流発生回路、Ｄ１，Ｄ２…ダイオー
ド、Ｒ６…低抵抗、Ｒ７〜Ｒ１０…高抵抗。
Fig. 1 is a circuit diagram showing an embodiment of the present invention using a constant current circuit CCS, and Fig. 2 shows another embodiment of the invention using a constant voltage IC. FIG. 3 is a circuit diagram showing another embodiment of the present invention using a transistor and a Zener diode, and FIG. 4 is a conventional circuit diagram. DESCRIPTION OF SYMBOLS 1...Converter, 2...Excitation circuit, 3...Pseudo input device, 4...Amplifier, 5...Signal processing circuit, CCS1,C
CS2... Constant current generating circuit, D1, D2... Diode, R6... Low resistance, R7 to R10... High resistance.
Claims (1)
に磁束を印加しこの流体が流れることによつて発
生する電圧を検出して増幅器により増幅すること
により流体の流量を計量する電磁流量計の前記励
磁回路に接続される低抵抗と、この低抵抗に並列
に接続され前記励磁電流の励磁電流値に無関係に
かつこの励磁電流と同一タイミングで擬似信号を
発信する高抵抗の定電圧発生回路とを備え、この
定電圧発生回路は励磁回路から電源供給され、励
磁電流に依らない一定の擬似信号を前記増幅器に
出力することを特徴とする電磁流量計擬似入力装
置。 The excitation circuit of an electromagnetic flowmeter that measures the flow rate of the fluid by applying magnetic flux to the fluid by a coil excited by the excitation circuit, detecting the voltage generated by the flow of the fluid, and amplifying it with an amplifier. and a high-resistance constant voltage generation circuit connected in parallel to the low resistance and transmitting a pseudo signal at the same timing as the excitation current, regardless of the excitation current value of the excitation current, An electromagnetic flowmeter pseudo input device characterized in that the constant voltage generating circuit is supplied with power from an excitation circuit and outputs a constant pseudo signal independent of the excitation current to the amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988091896U JPH0639308Y2 (en) | 1988-07-13 | 1988-07-13 | Electromagnetic flow meter pseudo input device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988091896U JPH0639308Y2 (en) | 1988-07-13 | 1988-07-13 | Electromagnetic flow meter pseudo input device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0214037U true JPH0214037U (en) | 1990-01-29 |
| JPH0639308Y2 JPH0639308Y2 (en) | 1994-10-12 |
Family
ID=31316353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988091896U Expired - Lifetime JPH0639308Y2 (en) | 1988-07-13 | 1988-07-13 | Electromagnetic flow meter pseudo input device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0639308Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016085149A (en) * | 2014-10-28 | 2016-05-19 | アズビル株式会社 | Standard signal generator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55109819U (en) * | 1979-01-29 | 1980-08-01 | ||
| JPS606734U (en) * | 1983-06-17 | 1985-01-18 | カシオ計算機株式会社 | paper feeding device |
-
1988
- 1988-07-13 JP JP1988091896U patent/JPH0639308Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55109819U (en) * | 1979-01-29 | 1980-08-01 | ||
| JPS606734U (en) * | 1983-06-17 | 1985-01-18 | カシオ計算機株式会社 | paper feeding device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016085149A (en) * | 2014-10-28 | 2016-05-19 | アズビル株式会社 | Standard signal generator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0639308Y2 (en) | 1994-10-12 |
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