JPS61190822U - - Google Patents
Info
- Publication number
- JPS61190822U JPS61190822U JP7548085U JP7548085U JPS61190822U JP S61190822 U JPS61190822 U JP S61190822U JP 7548085 U JP7548085 U JP 7548085U JP 7548085 U JP7548085 U JP 7548085U JP S61190822 U JPS61190822 U JP S61190822U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- vortex
- karman
- karman vortex
- dimension
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図は、クレーム対応図である。また、第２
図〜第４図は、本考案の一実施例を示し、第２図
は機械的構成の説明図、第３図は電気的構成の説
明図、第４図は制御回路中のマイクロコンピユー
タの主要プログラムを示すフローチヤートである
。さらに、第５図は、上記実施例の作用を説明す
る図である。
１０……渦発生体、２０……渦検出体。
FIG. 1 is a complaint correspondence diagram. Also, the second
4 to 4 show an embodiment of the present invention, FIG. 2 is an explanatory diagram of the mechanical configuration, FIG. 3 is an explanatory diagram of the electrical configuration, and FIG. 4 is an illustration of the main components of the microcomputer in the control circuit. This is a flowchart showing the program. Furthermore, FIG. 5 is a diagram illustrating the operation of the above embodiment. 10... Vortex generator, 20... Vortex detector.
Claims (1)
ルマン渦を発生させ、実効代表寸法を変更可能に
構成されている渦発生体と、 渦発生体によつて発生されたカルマン渦によつ
てミラーを振動させ、そのミラーの振動数からカ
ルマン渦の周波数を検出する渦検出体と、 該渦検出体によつて検出されるカルマン渦の周
波数が、予め決められた第１周波数より低いか、
また、第１周波数より高く設定された第２周波数
より高いかを判定する周波数判定手段と、 前記周波数判定手段によつてカルマン渦の周波
数が、第２周波数より高いと判定されると、第１
周波数より低いときに比べて、前記渦発生体の実
効代表寸法を大きくする寸法変更手段と、 渦検出体によつて検出されるカルマン渦の周波
数からそれに比例する流量を求め、寸法変更手段
によつて実効代表寸法が変更されると、それに合
わせて求められる流量を補正する流量計測手段と
、 を備え、前記周波数判定手段における第１周波数
と第２周波数との差は、前記渦発生体の実効代表
寸法が寸法変更手段によつて変更されるのに伴つ
て生ずるカルマン渦の周波数の差以上とされてい
ることを特徴とするカルマン渦流量計。[Scope of Claim for Utility Model Registration] A vortex generator that is held in a flow path and generates a Karman vortex with a frequency proportional to the flow rate, and whose effective representative dimensions can be changed; a vortex detector that vibrates a mirror by the Karman vortex generated by the vortex and detects the frequency of the Karman vortex from the frequency of the mirror; and a vortex detector that detects the frequency of the Karman vortex from the frequency of the mirror; Is it lower than the first frequency?
Further, a frequency determining means for determining whether the frequency of the Karman vortex is higher than the second frequency set higher than the first frequency; and when the frequency determining means determines that the frequency of the Karman vortex is higher than the second frequency,
A dimension changing means for increasing the effective representative dimension of the vortex generating body compared to when the frequency is lower than that of the Karman vortex; and a flow rate measuring means for correcting the flow rate determined accordingly when the effective representative dimension is changed, the difference between the first frequency and the second frequency in the frequency determining means is determined by the effective A Karman vortex flowmeter characterized in that the difference in frequency of Karman vortices that occurs when a representative dimension is changed by a dimension changing means is greater than or equal to the difference in frequency of Karman vortices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7548085U JPS61190822U (en) | 1985-05-21 | 1985-05-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7548085U JPS61190822U (en) | 1985-05-21 | 1985-05-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61190822U true JPS61190822U (en) | 1986-11-27 |
Family
ID=30616737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7548085U Pending JPS61190822U (en) | 1985-05-21 | 1985-05-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61190822U (en) |
-
1985
- 1985-05-21 JP JP7548085U patent/JPS61190822U/ja active Pending
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