JPS62128325U - - Google Patents
Info
- Publication number
- JPS62128325U JPS62128325U JP1620586U JP1620586U JPS62128325U JP S62128325 U JPS62128325 U JP S62128325U JP 1620586 U JP1620586 U JP 1620586U JP 1620586 U JP1620586 U JP 1620586U JP S62128325 U JPS62128325 U JP S62128325U
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- sensors
- pair
- jet nozzle
- flow
- 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
- 239000012528 membrane Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図ないし第４図は本考案の実施例を示し、
第１図は全体断面図、第２図は流量検出部の概念
図、第３図イ及びロは膜状センサーの変形状態の
説明図、第４図イ及びロは波形信号の説明図であ
る。第５図及び第６図は従来例を示し、第５図は
全体断面図、第６図は波形信号の説明図である。
２……管路縮小部、３……噴出ノズル、５……
管路拡大部、６ａ，６ｂ……制御ノズル、７ａ，
７ｂ……帰還流路、１０ａ，１０ｂ……排出路、
１４ａ，１４ｂ……膜状センサー、１６……筒状
体、１７……密閉空間、１８……差動増巾器。
1 to 4 show embodiments of the present invention,
Fig. 1 is an overall sectional view, Fig. 2 is a conceptual diagram of the flow rate detection section, Fig. 3 A and B are explanatory diagrams of the deformed state of the membrane sensor, and Fig. 4 A and B are explanatory diagrams of waveform signals. . 5 and 6 show a conventional example, where FIG. 5 is an overall sectional view and FIG. 6 is an explanatory diagram of a waveform signal. 2...Pipe reduction part, 3...Blowout nozzle, 5...
Pipe expansion portion, 6a, 6b...control nozzle, 7a,
7b... Return flow path, 10a, 10b... Discharge path,
14a, 14b...membrane sensor, 16...cylindrical body, 17...closed space, 18...differential amplifier.
Claims (1)
をその順に流動方向に連ねて形成し、前記噴出ノ
ズル３と管路拡大部５の境界部に、一対の制御ノ
ズル６ａ，６ｂを、前記噴出ノズル３の噴出方向
に対してほぼ直角方向に向かつて、かつ、相対向
して形成し、前記両制御ノズル６ａ，６ｂ夫々と
前記管路拡大部５の下流側を接続する一対の帰還
流路７ａ，７ｂを形成し、前記管路拡大部５に対
する一対の排出路１０ａ，１０ｂを、入口が前記
両帰還流路７ａ，７ｂの入口に各別に連通する状
態で形成し、前記噴出ノズル３からの噴流の流動
方向変化に起因する圧力変化を検出する流量測定
用圧力センサーを、前記両排出路１０ａ，１０ｂ
の流体圧が作用するように配置し、かつ、歪方向
により正又は負の電圧を印加する膜状センサー１
４ａ，１４ｂで形成したフルイデイツク流量計で
あつて、一対の前記膜状センサー１４ａ，１４ｂ
を筒状体１６に、その内部に密閉空間１７が形成
される状態で、かつ、外側面が前記筒状体１６に
よりアースされた状態で取付け、前記両膜状セン
サー１４ａ，１４ｂを前記両排出路１０ａ，１０
ｂに各別に臨設し、前記両膜状センサー１４ａ，
１４ｂの内側面に、それら両膜状センサー１４ａ
，１４ｂから電圧の減算値に相当する電圧を印加
する差動増巾器１８を接続してあるフルイデイツ
ク流量計。 Pipe reduction section 2, jet nozzle 3, and pipe enlargement section 5
are formed in series in the flow direction, and a pair of control nozzles 6a and 6b are provided at the boundary between the jet nozzle 3 and the expanded pipe section 5, oriented in a direction substantially perpendicular to the jet direction of the jet nozzle 3. A pair of return flow passages 7a and 7b are formed to face each other and connect the control nozzles 6a and 6b to the downstream side of the conduit enlarged part 5, respectively. A pair of discharge passages 10a and 10b are formed in such a manner that their inlets communicate with the inlets of both the return passages 7a and 7b, respectively, and a pressure change caused by a change in the flow direction of the jet flow from the jet nozzle 3 is detected. A pressure sensor for measuring the flow rate is connected to both the discharge paths 10a and 10b.
A membrane sensor 1 is arranged so that a fluid pressure of
4a, 14b, the pair of membrane sensors 14a, 14b.
is attached to the cylindrical body 16 in such a manner that a sealed space 17 is formed therein, and the outer surface is grounded by the cylindrical body 16, and both the membrane-like sensors 14a and 14b are connected to the both exhausts. Road 10a, 10
The two membrane-like sensors 14a,
Both membrane-like sensors 14a are attached to the inner surface of the sensor 14b.
, 14b is connected to a differential amplifier 18 that applies a voltage corresponding to the voltage subtracted from the voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1620586U JPH0530099Y2 (en) | 1986-02-06 | 1986-02-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1620586U JPH0530099Y2 (en) | 1986-02-06 | 1986-02-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62128325U true JPS62128325U (en) | 1987-08-14 |
| JPH0530099Y2 JPH0530099Y2 (en) | 1993-08-02 |
Family
ID=30807848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1620586U Expired - Lifetime JPH0530099Y2 (en) | 1986-02-06 | 1986-02-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0530099Y2 (en) |
-
1986
- 1986-02-06 JP JP1620586U patent/JPH0530099Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0530099Y2 (en) | 1993-08-02 |
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