JPH0441626U - - Google Patents
Info
- Publication number
- JPH0441626U JPH0441626U JP8271290U JP8271290U JPH0441626U JP H0441626 U JPH0441626 U JP H0441626U JP 8271290 U JP8271290 U JP 8271290U JP 8271290 U JP8271290 U JP 8271290U JP H0441626 U JPH0441626 U JP H0441626U
- Authority
- JP
- Japan
- Prior art keywords
- water
- flow velocity
- waterway
- meter
- average 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 1
Description
第１図〜第７図は本考案の実施例に関するもの
で、第１図はシステム構成図、第２図ａは開水路
の平面図、第２図ｂは同図Ａ−Ａ断面図、第２図
ｃはＢ−Ｂ断面図、第３図はドツプラ式反射型流
速計の動作説明図、第４図及び第５図は流速分布
図、第６図は平均流速の補正説明線図、第７図は
水深測定説明図、第８図は他の実施例にかかるシ
ステム構成図、第９図ａ，ｂ及び第１０図ａ，ｂ
は従来流速計の動作説明図である。
Ｖ……流速計、Ｌ……水位計、１……開水路、
３……堰、１１，１２……変換器、１３……演算
器。
Figures 1 to 7 relate to an embodiment of the present invention, where Figure 1 is a system configuration diagram, Figure 2a is a plan view of an open channel, Figure 2b is a sectional view taken along line A-A in the same figure, and Figure 2c is a sectional view taken along line B-B, Figure 3 is a diagram explaining the operation of the Doppler reflection type current meter, Figures 4 and 5 are flow velocity distribution diagrams, Figure 6 is a diagram explaining correction of average flow velocity, Fig. 7 is an explanatory diagram of water depth measurement, Fig. 8 is a system configuration diagram according to another embodiment, Fig. 9 a, b, and Fig. 10 a, b.
is an explanatory diagram of the operation of a conventional current velocity meter. V... current velocity meter, L... water level gauge, 1... open channel,
3... Weir, 11, 12... Converter, 13... Arithmetic unit.
Claims (1)
有する開水路の流れの安定している位置の水路中
央部の水深の水面下の平均流速点に設けられるド
ツプラ式反射型超音波流速計と、 前記水路中に設けられる水位計と、 前記流速計で測定した流速から平均流速を求め
水深補正を付加すると共に前記水位計で測定した
水深と既知の水深データ及び水路巾データから流
水の断面積を演算し前記平均流速と流水の断面積
から流量を演算する演算器とよりなることを特徴
とする開水路流量計。[Claim for Utility Model Registration] Dotsupura type installed at the average flow velocity point below the water surface at the center of the waterway at a position where the flow is stable in an open channel with a weir at the end where flowing water containing a large amount of air bubbles flows. a reflection type ultrasonic current meter; a water level meter installed in the waterway; an average flow velocity is determined from the flow velocity measured by the current velocity meter, water depth correction is added, and the water depth measured by the water level gauge, known water depth data, and the waterway are An open channel flowmeter comprising: a calculator that calculates a cross-sectional area of flowing water from width data and calculates a flow rate from the average flow velocity and the cross-sectional area of the flowing water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8271290U JPH0441626U (en) | 1990-08-03 | 1990-08-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8271290U JPH0441626U (en) | 1990-08-03 | 1990-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0441626U true JPH0441626U (en) | 1992-04-08 |
Family
ID=31629768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8271290U Pending JPH0441626U (en) | 1990-08-03 | 1990-08-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0441626U (en) |
-
1990
- 1990-08-03 JP JP8271290U patent/JPH0441626U/ja active Pending
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