JPS5952414U - electromagnetic flow meter - Google Patents
electromagnetic flow meterInfo
- Publication number
- JPS5952414U JPS5952414U JP13484482U JP13484482U JPS5952414U JP S5952414 U JPS5952414 U JP S5952414U JP 13484482 U JP13484482 U JP 13484482U JP 13484482 U JP13484482 U JP 13484482U JP S5952414 U JPS5952414 U JP S5952414U
- Authority
- JP
- Japan
- Prior art keywords
- calculating
- value
- calculated value
- sampling
- outputting
- 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ａ、 ｂはノイズを示す波形図、第２図は本考
案の第１の実施例を示す回路図、第３図はその動作を説
明するための波形図、第４図は励振方式の各種例を示す
波形図、第５図は本考案の第２の実施例を示す回路図で
ある。
図面中、１は電磁流量計発信器、５はタイミング回路、
８はサンプリングホールド回路、９は異常出力防止回路
、１０は加算アンプ、１１は比較器、１２は演算回路、
ＳＷエニー、 ５ｗ２−２．５ｗ２−３゜５Ｗ２−４は
切替スイッチ、ＳＷ、はスイッチ、Ｑ□。
Ｑ２． Ｑ３． Ｑ、はホールド回路、ｅｏは電極間信
号、ｅ１＋ ｅ２＋ ｅ３＋ ｅ４はサンプル値、ｅ５
は加算値、ｅ６は出力（演算値）、Ｅ、は基準電圧であ
る。Figures 1a and b are waveform diagrams showing noise, Figure 2 is a circuit diagram showing the first embodiment of the present invention, Figure 3 is a waveform diagram to explain its operation, and Figure 4 is an excitation method. FIG. 5 is a circuit diagram showing a second embodiment of the present invention. In the drawing, 1 is an electromagnetic flowmeter transmitter, 5 is a timing circuit,
8 is a sampling hold circuit, 9 is an abnormal output prevention circuit, 10 is an addition amplifier, 11 is a comparator, 12 is an arithmetic circuit,
SW any, 5w2-2.5w2-3゜5W2-4 is a changeover switch, SW is a switch, Q□. Q2. Q3. Q is a hold circuit, eo is a signal between electrodes, e1+ e2+ e3+ e4 is a sample value, e5
is an added value, e6 is an output (calculated value), and E is a reference voltage.
Claims (1)
−励振周期内における複数の所定のサンプリング点でサ
ンプリングしてホールドするサンプリングホールド手段
と、このサンプリングホールド手段にホールドされた複
数のサンプル値を一定の演算方式に従い演算して流量に
対応した演算値を求める演算手段と、前記複数のサンプ
ル値を加算してこの加算値があらかじめ設定した基準値
よりも小さい場合には前記演算値を出力させる一方前記
加算値が前記基準値よりも大きい場合には前記演算値を
出力させない異常出力防止手段とを有することを特徴と
する電磁流量計。After removing the DC component of the inter-electrode signal by AC coupling, a sampling and holding means samples and holds the signal at a plurality of predetermined sampling points within an excitation period, and a plurality of sample values held at the sampling and holding means are kept constant. a calculating means for calculating a calculated value corresponding to the flow rate according to a calculating method; and a calculating means for adding the plurality of sample values and outputting the calculated value if the added value is smaller than a preset reference value. An electromagnetic flowmeter comprising: abnormal output prevention means for not outputting the calculated value when the added value is larger than the reference value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13484482U JPS5952414U (en) | 1982-09-07 | 1982-09-07 | electromagnetic flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13484482U JPS5952414U (en) | 1982-09-07 | 1982-09-07 | electromagnetic flow meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5952414U true JPS5952414U (en) | 1984-04-06 |
| JPH0114888Y2 JPH0114888Y2 (en) | 1989-05-02 |
Family
ID=30303716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13484482U Granted JPS5952414U (en) | 1982-09-07 | 1982-09-07 | electromagnetic flow meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5952414U (en) |
-
1982
- 1982-09-07 JP JP13484482U patent/JPS5952414U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0114888Y2 (en) | 1989-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS59176327U (en) | Sampling signal abnormality monitoring device | |
| JPS5952414U (en) | electromagnetic flow meter | |
| JPS59154671U (en) | Maximum value measurement circuit for cylinder pressure | |
| JPS6027321U (en) | electromagnetic flow meter | |
| JPS6088222U (en) | Electromagnetic current meter | |
| JPS58116628U (en) | electromagnetic flow meter | |
| JPS59172326U (en) | Instrument circuit | |
| JPS59109925U (en) | electromagnetic flow meter | |
| JPS5917871U (en) | Iron loss measuring device | |
| JPS58165619U (en) | electromagnetic flow meter | |
| JPS5892677U (en) | Voltage discrimination circuit | |
| JPS6079153U (en) | Ion concentration measuring device | |
| JPS59154623U (en) | electromagnetic flow meter | |
| JPS60107770U (en) | Liquid conductivity measuring device | |
| JPS59166176U (en) | Frequency rough measurement device | |
| JPS5848113U (en) | Staircase waveform signal step reduction circuit | |
| JPS5973853U (en) | Audio signal cutoff circuit | |
| JPS58123371U (en) | Digital harmonic measuring instrument | |
| JPS58140473U (en) | Cathode ray tube tube scale sensitivity setting device | |
| JPS60142540U (en) | Pulse noise removal device | |
| JPS60139226U (en) | electromagnetic flow meter | |
| JPS6315590A (en) | Dial pulse detection circuit | |
| JPS5830373U (en) | Reference signal detection circuit | |
| JPS6095737U (en) | Clock frequency multiplier circuit | |
| JPS58127765U (en) | Image signal sampling pulse generation circuit |