JPH0465327B2 - - Google Patents
Info
- Publication number
- JPH0465327B2 JPH0465327B2 JP58191155A JP19115583A JPH0465327B2 JP H0465327 B2 JPH0465327 B2 JP H0465327B2 JP 58191155 A JP58191155 A JP 58191155A JP 19115583 A JP19115583 A JP 19115583A JP H0465327 B2 JPH0465327 B2 JP H0465327B2
- Authority
- JP
- Japan
- Prior art keywords
- flow rate
- zero
- time
- meter
- selection switch
- 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.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T15/00—Three-dimensional [3D] image rendering
- G06T15/08—Volume rendering
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
- G01F15/061—Indicating or recording devices for remote indication
- G01F15/063—Indicating or recording devices for remote indication using electrical means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Computer Graphics (AREA)
- Theoretical Computer Science (AREA)
- Measuring Volume Flow (AREA)
- Details Of Flowmeters (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ガスメータを利用し単位時間当りの
流量を測定する流量測定装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a flow rate measuring device that uses a gas meter to measure a flow rate per unit time.
従来例の構成とその問題点
従来の流量測定装置としては、例えば第１図に
示すように、ガスメータ１にガスメータの計量に
応じて流量パルスを発信する流量センサ２を設け
る。この流量センサは、ガスメータ１の計量膜に
応動するリンク機構に設けた磁石と、この磁石の
磁界を検出する磁界検出器とで構成し、計量膜１
往復の都度磁界検出器より流量パルスが１パルス
出力される。計量膜１往復でガスメータ１を流れ
る流量すなわち単位計量体積fuはメータ号数によ
つて変る。例えばＮ型２号メータはfuが0.6、
同７号メータはfuが1.7である。そこで、流量
パルスの重みづけを行なうための号数選択スイツ
チ３を設け、流量パルスと号数選択スイツチ３の
出力たる号数信号とから演算装置４は単位時間当
りの流量を演算する。流量ゼロの判定は、演算装
置４に設けられ、流量パルスの時間間隔を測定す
るタイマ５と、タイマ５によつて測定したパルス
間隔が所定時間To以上になつたときゼロ流量信
号を発生する判定器６とで構成するゼロ判定部７
により判定する。Configuration of Conventional Example and Problems Therewith As a conventional flow rate measuring device, for example, as shown in FIG. 1, a gas meter 1 is provided with a flow rate sensor 2 that transmits a flow rate pulse in accordance with the measurement by the gas meter. This flow rate sensor is composed of a magnet provided in a link mechanism that responds to the measurement membrane of the gas meter 1, and a magnetic field detector that detects the magnetic field of this magnet.
One pulse of flow rate is output from the magnetic field detector each time of reciprocation. The flow rate flowing through the gas meter 1 in one round trip of the metering membrane, that is, the unit metered volume fu changes depending on the meter number. For example, the fu of N type No. 2 meter is 0.6,
The No. 7 meter has fu of 1.7. Therefore, a number selection switch 3 is provided for weighting the flow rate pulses, and an arithmetic unit 4 calculates the flow rate per unit time from the flow rate pulses and the number signal output from the number selection switch 3. The determination of zero flow rate is determined by a timer 5 which is provided in the arithmetic unit 4 and measures the time interval of flow pulses, and which generates a zero flow signal when the pulse interval measured by the timer 5 exceeds a predetermined time To. a zero determination section 7 consisting of a device 6;
Determine by.
上途したゼロ判定部の欠点は、ゼロ判定のため
の所定時間Toが一定のため、ゼロ流量となる流
量がメータ号数によつて変化することである。す
なわちＮ型２号メータでは0.6／To以下の流量が
ゼロ流量となるが、同７号メータでは1.7／To以
下がゼロ流量となる。 The disadvantage of the zero determination section that has failed is that since the predetermined time To for zero determination is constant, the flow rate at which the flow rate becomes zero varies depending on the meter number. In other words, with the N type No. 2 meter, a flow rate of 0.6/To or less is zero flow rate, but with the same No. 7 meter, a flow rate of 1.7/To or less is zero flow rate.
発明の目的
本発明は上記従来の欠点を解消するもので、メ
ータ号数に関係なくどのような号数のガスメータ
を使用してもゼロ判定流量が一定の流量測定装置
を得ることを目的とする。Purpose of the Invention The present invention solves the above-mentioned conventional drawbacks, and aims to provide a flow rate measuring device in which the zero judgment flow rate is constant regardless of the meter number and regardless of the number of gas meters used. .
発明の構成
上記目的を達成するため、本発明の流量測定装
置は、その流量ゼロ判定部を、号数信号を受けて
ゼロ判定時間を出力する時間設定器と、流量パル
スの時間間隔を測定するタイマと、ゼロ判定時間
と流量パルス間隔とを比較し後者≧前者のときゼ
ロ流量信号を出力する比較器とで構成するもので
あり、時間設定器は例えば、２号メータなら６分
７号メータなら17分なるゼロ判定時間を出力する
ので、ゼロ判定流量は、２号メータでも７号メー
タでも0.1／分と一定となり、メータ号数が変
化してもゼロ判定流量が一定となる。Composition of the Invention In order to achieve the above object, the flow rate measuring device of the present invention includes a flow rate zero determination section that includes a time setting device that receives a number signal and outputs a zero determination time, and measures a time interval between flow rate pulses. It consists of a timer and a comparator that compares the zero judgment time and the flow rate pulse interval and outputs a zero flow signal when the latter≧the former.The time setting device is, for example, a No. 6/7 meter if it is a No. 2 meter. Then, since the zero judgment time of 17 minutes is output, the zero judgment flow rate is constant at 0.1/min for both the No. 2 meter and the No. 7 meter, and the zero judgment flow rate remains constant even if the meter number changes.
実施例の説明
以下本発明の一実施例について、図面に基づい
て説明する。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below based on the drawings.
第２図において、第１図と同一番号は同一物を
示す。８は演算装置で、流量センサ２からの流量
パルスと、号数選択スイツチ３からの号数信号と
から単位時間当りの流量を演算しゼロ判定部９を
具備する。ゼロ判定部９は、流量パルスの時間間
隔を測定するタイマ５と、号数信号に応じてゼロ
判定時間を出力するもので、例えば号数信号が２
号なら６分、７号なら17分を出力する時間設定器
１０と、タイマ５で測定する流量パルス間隔とゼ
ロ判定時間を比較する比較器１１とで構成する。 In FIG. 2, the same numbers as in FIG. 1 indicate the same items. Reference numeral 8 denotes a calculation device which calculates the flow rate per unit time from the flow rate pulse from the flow rate sensor 2 and the number signal from the number selection switch 3, and includes a zero determination section 9. The zero determination unit 9 includes a timer 5 that measures the time interval of flow rate pulses and outputs a zero determination time according to the number signal. For example, when the number signal is 2
It consists of a time setter 10 that outputs 6 minutes for No. 7 and 17 minutes for No. 7, and a comparator 11 that compares the flow rate pulse interval measured by the timer 5 with the zero determination time.
以下上記構成における作用について説明する。
今ガスメータ１の号数が２号であるとする。号数
信号は２号となるとなるので、時間設定器１０は
これに応じてゼロ判定時間To2、例えば６分を出
力する。タイマ５で測定する流量パルス間隔TF
が、６分よりも短かければ、TF＜To2となるの
で比較器１１はゼロ流量を出力しない。流量パル
ス間隔TFが６分以上となると、TF≧To2となる
ので、比較器１１はゼロ流量を出力する。この場
合のゼロ判定流量は0.6／６分＝0.1／分とな
る。 The operation of the above configuration will be explained below.
Assume that the number of gas meter 1 is now number 2. Since the number signal becomes number 2, the time setter 10 outputs the zero determination time To 2 , for example, 6 minutes, in response to this. Flow rate pulse interval T F measured by timer 5
However, if the time is shorter than 6 minutes, TF<To 2 , so the comparator 11 does not output zero flow rate. When the flow rate pulse interval T F becomes 6 minutes or more, T F ≧To 2 , so the comparator 11 outputs zero flow rate. In this case, the zero determination flow rate is 0.6/6 minutes=0.1/minute.
次に、ガスメータ１の号数が７号の場合、時間
設定器１０はこれに応じてゼロ判定時間To7例え
ば17分を出力する。従つてこの場合のゼロ判定流
量は1.7／17分＝0.1／分となり、２号メータ
の場合と同一となる。 Next, when the number of the gas meter 1 is No. 7, the time setter 10 outputs the zero determination time To 7 , for example, 17 minutes, in response to this. Therefore, the zero judgment flow rate in this case is 1.7/17 minutes = 0.1/minute, which is the same as in the case of the No. 2 meter.
このように本実施例によれば、メータ号数に関
係なくゼロ判定流量を一定にできるという効果を
有する。 As described above, this embodiment has the effect that the zero determination flow rate can be made constant regardless of the meter number.
上途した実施例では、ゼロ判定部を設けている
が、マイクロコンピユータにより演算装置を構成
する場合、このマイクロコンピユータ内に設けて
もよい。 In the preferred embodiment, a zero determination section is provided, but if the arithmetic unit is constituted by a microcomputer, it may be provided within the microcomputer.
発明の効果
以上のように本発明によれば、メータ号数が変
つても、ゼロ判定流量が一定となる流量測定装置
が得られる。Effects of the Invention As described above, according to the present invention, a flow rate measuring device can be obtained in which the zero determination flow rate remains constant even if the meter number changes.
第１図は従来の流量測定装置の構成図、第２図
は本発明の一実施例である流量測定装置のゼロ判
定部の構成図である。
１……ガスメータ、２……流量センサ、３……
号数選択スイツチ、５……タイマ、８……演算装
置、９……ゼロ判定部、１０……時間設定器、１
１……比較器。
FIG. 1 is a block diagram of a conventional flow rate measuring device, and FIG. 2 is a block diagram of a zero determination section of a flow rate measuring device which is an embodiment of the present invention. 1...Gas meter, 2...Flow rate sensor, 3...
No. number selection switch, 5...Timer, 8...Arithmetic unit, 9...Zero judgment section, 10...Time setting device, 1
1... Comparator.
Claims (1)
計量に応じて流量パルスを発信する流量センサ
と、前記ガスメータのメータ号数に応じて号数信
号を発生する号数選択スイツチと、前記流量セン
サの前記流量パルスと前記号数選択スイツチの号
数信号とから流量を演算し、前記流量パルスの時
間間隔からゼロ流量を判定するゼロ判定部を具備
する演算装置とを備え、前記ゼロ判定部は、前記
号数選択スイツチからの号数信号に応じたゼロ判
定時間を出力する時間設定器と、前記流量センサ
からの流量パルスの時間間隔を測定するタイマ
と、前記時間設定器からのゼロ判定時間と前記タ
イマを測定する流量パルス時間間隔とを比較し、
後者が前者より長いときゼロ流量信号を出力する
比較器とで構成した流量測定装置。1. A flow rate sensor attached to a gas meter that emits a flow rate pulse in accordance with the measurement of the gas meter, a number selection switch that generates a number signal in accordance with the meter number of the gas meter, and the flow rate pulse of the flow rate sensor. and a calculation device comprising a zero determination unit that calculates the flow rate from the number signal of the front symbol number selection switch and determines the zero flow rate from the time interval of the flow rate pulse, the zero determination unit a time setter that outputs a zero judgment time according to the number signal from the selection switch; a timer that measures the time interval of the flow rate pulse from the flow rate sensor; and a time setter that outputs the zero judgment time according to the number signal from the selection switch; Compare the flow rate pulse time interval to be measured,
A flow measuring device consisting of a comparator that outputs a zero flow signal when the latter is longer than the former.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58191155A JPS6082817A (en) | 1983-10-13 | 1983-10-13 | flow measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58191155A JPS6082817A (en) | 1983-10-13 | 1983-10-13 | flow measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6082817A JPS6082817A (en) | 1985-05-11 |
| JPH0465327B2 true JPH0465327B2 (en) | 1992-10-19 |
Family
ID=16269813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58191155A Granted JPS6082817A (en) | 1983-10-13 | 1983-10-13 | flow measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6082817A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2312349A1 (en) | 2009-10-14 | 2011-04-20 | Sumitomo Electric Industries, Ltd. | Optical fiber and method of manufacturing optical fiber |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5314199Y2 (en) * | 1973-10-05 | 1978-04-15 |
-
1983
- 1983-10-13 JP JP58191155A patent/JPS6082817A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2312349A1 (en) | 2009-10-14 | 2011-04-20 | Sumitomo Electric Industries, Ltd. | Optical fiber and method of manufacturing optical fiber |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6082817A (en) | 1985-05-11 |
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