JPS62134031U - - Google Patents
Info
- Publication number
- JPS62134031U JPS62134031U JP2118586U JP2118586U JPS62134031U JP S62134031 U JPS62134031 U JP S62134031U JP 2118586 U JP2118586 U JP 2118586U JP 2118586 U JP2118586 U JP 2118586U JP S62134031 U JPS62134031 U JP S62134031U
- Authority
- JP
- Japan
- Prior art keywords
- flow rate
- flow
- simple harmonic
- hold value
- stationary surface
- 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
- 230000002441 reversible effect Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims 1
- 230000010354 integration Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は、本考案の一実施例を説明するための
説明の構成図、第２図は、第１図に示した時間差
検出回路の出力、及び加逆カウンタへの識別信号
、第３図は、本考案によるアナログ時間差検出の
チヤート、第４図は、逆流を伴なう流れをしめす
説明図である。
１……本管、２，２１……流管、３……支切板
、４……駆動部、５，６……センサ、７……時間
差検出回路、８……駆動回路、９……流量信号出
力回路、１０……正逆流識別回路、１１……可逆
カウンタ。
FIG. 1 is an explanatory block diagram for explaining one embodiment of the present invention, FIG. 2 shows the output of the time difference detection circuit shown in FIG. 1, and an identification signal to the addition/reversal counter. 4 is a chart of analog time difference detection according to the present invention, and FIG. 4 is an explanatory diagram showing a flow accompanied by reverse flow. 1... Main pipe, 2, 21... Flow tube, 3... Branch plate, 4... Drive section, 5, 6... Sensor, 7... Time difference detection circuit, 8... Drive circuit, 9... Flow rate signal output circuit, 10... Forward/reverse flow identification circuit, 11... Reversible counter.
Claims (1)
中央部を一定の振幅・周波数で単振駆動し、上記
流管の支持部に対して対称で振動方向と直交する
静止面に近い位置に単振動を検出する一対のセン
サを配設し、この各々のセンサが静止面を通過す
る時間差として質量流量を求めるコリオリカ流量
計において、時間差を各センサ出力が予じめ定め
られた正負の比較電圧値に達する時間積分値とし
サンプルホールドして求め、該ホールド値の極性
に従つて被測定流体の順逆流れ方向を判別し、該
判別指令により上記ホールド値に比例した順方向
流れのデジタル量を加減算し、この積算結果から
順方向の流量を求めることを特徴とする質量流量
計。 The central part of the flow tube, which is fixedly supported near the inflow and outflow ports, is driven in simple harmonic motion at a constant amplitude and frequency, and a simple harmonic vibration is generated at a position close to a stationary surface that is symmetrical to the support part of the flow tube and orthogonal to the vibration direction. Coriolis flowmeters are equipped with a pair of sensors that detect the flow rate, and determine the mass flow rate as the difference in time between each sensor passing through a stationary surface. Determine the forward and reverse flow direction of the fluid to be measured according to the polarity of the hold value, add or subtract a digital amount of forward flow proportional to the hold value according to the determination command, A mass flowmeter characterized by determining the forward flow rate from this integration result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2118586U JPH0441299Y2 (en) | 1986-02-17 | 1986-02-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2118586U JPH0441299Y2 (en) | 1986-02-17 | 1986-02-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62134031U true JPS62134031U (en) | 1987-08-24 |
| JPH0441299Y2 JPH0441299Y2 (en) | 1992-09-29 |
Family
ID=30817395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2118586U Expired JPH0441299Y2 (en) | 1986-02-17 | 1986-02-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0441299Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010540975A (en) * | 2007-10-08 | 2010-12-24 | マイクロ モーション インコーポレイテッド | Flow device and method for operating a flow device |
| JP2012522252A (en) * | 2009-04-15 | 2012-09-20 | シュルンベルジェ ホールディングス リミテッド | Microfluidic vibrating tube density meter applied to drilling holes |
-
1986
- 1986-02-17 JP JP2118586U patent/JPH0441299Y2/ja not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010540975A (en) * | 2007-10-08 | 2010-12-24 | マイクロ モーション インコーポレイテッド | Flow device and method for operating a flow device |
| US8364426B2 (en) | 2007-10-08 | 2013-01-29 | Micro Motion, Inc. | Flow device and method for operating a flow device |
| JP2012522252A (en) * | 2009-04-15 | 2012-09-20 | シュルンベルジェ ホールディングス リミテッド | Microfluidic vibrating tube density meter applied to drilling holes |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0441299Y2 (en) | 1992-09-29 |
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