JPS6320027U - - Google Patents
Info
- Publication number
- JPS6320027U JPS6320027U JP10367587U JP10367587U JPS6320027U JP S6320027 U JPS6320027 U JP S6320027U JP 10367587 U JP10367587 U JP 10367587U JP 10367587 U JP10367587 U JP 10367587U JP S6320027 U JPS6320027 U JP S6320027U
- Authority
- JP
- Japan
- Prior art keywords
- flowmeter
- sonic nozzle
- tested
- testing
- utility
- 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
- 238000012360 testing method Methods 0.000 claims description 4
- 238000012795 verification Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Details Of Flowmeters (AREA)
- Measuring Volume Flow (AREA)
Description
第１図ないし第３図は本考案に係る流量計の試
験検定装置の３実施例を示す構成図、第４図は流
量計にサーボ型構成を用いた場合の要部の説明図
、第５図は流量値が異なる多数の基準音速ノズル
を配設した円筒状筐体を示すもので、ａはｂのイ
―イ線縦断正面図、ｂは同上の断面図、第６図ａ
は本考案に係る流量計の下流側に音速ノズルを配
列した場合の流量計よりのアナログ信号による指
示流量値の時間経過状態グラフを、ｂは音速ノズ
ルの下流側に流量計を配列した場合の流量計より
のアナログ信号による指示流量値の時間経過グラ
フをそれぞれ示す。尚、図中、記号Ｐ１は音速ノ
ズル上流側の圧力値を示し、Ｐ２は下流側の圧力
値を示す。
１……流路、２……流量計、３……音速ノズル
、５……コンプレツサーあるいは送風機、６……
タンク、８……真空ポンプ。
Figures 1 to 3 are configuration diagrams showing three embodiments of the test and verification device for a flowmeter according to the present invention, Figure 4 is an explanatory diagram of the main parts when a servo type configuration is used for the flowmeter, and Figure 5 The figure shows a cylindrical housing in which a large number of reference sonic velocity nozzles with different flow rates are arranged.
is a graph of the flow rate indicated by the analog signal from the flowmeter over time when sonic nozzles are arranged downstream of the flowmeter according to the present invention, and b is a graph of the flow rate over time when the flowmeter is arranged downstream of the sonic nozzle. The time course graphs of the indicated flow rate values based on the analog signals from the flowmeters are shown. In the figure, symbol P 1 indicates the pressure value on the upstream side of the sonic nozzle, and P 2 indicates the pressure value on the downstream side. 1...Flow path, 2...Flow meter, 3...Sonic nozzle, 5...Compressor or blower, 6...
Tank, 8...vacuum pump.
Claims (1)
流路に配設した被試験流量計又は基準流量計の下
流側に基準音速ノズル又は被試験音速ノズルを配
設したことを特徴とする流量計の試験検定装置。 (2) 前記被試験流量計又は基準流量計にはサー
ボ機構を附設し、その流量計の入口側圧力と出口
側圧力との差を補償したことを特徴とする実用新
案登録請求の範囲第(1)項記載の流量計の試験検
定装置。[Scope of Claim for Utility Model Registration] (1) A reference sonic nozzle or a sonic nozzle to be tested is installed downstream of a flowmeter to be tested or a reference flowmeter installed in an open or circulating flow path for transferring a desired gas. 1. A flowmeter testing and verification device characterized by the following: (2) The utility model registration claim No. 1 is characterized in that the flowmeter under test or the reference flowmeter is equipped with a servo mechanism to compensate for the difference between the pressure on the inlet side and the pressure on the outlet side of the flowmeter. Testing and verification equipment for the flowmeter described in section 1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987103675U JPH0212576Y2 (en) | 1987-07-06 | 1987-07-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987103675U JPH0212576Y2 (en) | 1987-07-06 | 1987-07-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6320027U true JPS6320027U (en) | 1988-02-09 |
| JPH0212576Y2 JPH0212576Y2 (en) | 1990-04-09 |
Family
ID=30976456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987103675U Expired JPH0212576Y2 (en) | 1987-07-06 | 1987-07-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0212576Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017181215A (en) * | 2016-03-29 | 2017-10-05 | 岩谷産業株式会社 | Method for evaluating hydrogen gas dispenser |
| JP2017181213A (en) * | 2016-03-29 | 2017-10-05 | 岩谷産業株式会社 | Critical flow nozzle type gas flowmeter and adjustment method of gas flowmeter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5063965A (en) * | 1973-10-06 | 1975-05-30 |
-
1987
- 1987-07-06 JP JP1987103675U patent/JPH0212576Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5063965A (en) * | 1973-10-06 | 1975-05-30 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017181215A (en) * | 2016-03-29 | 2017-10-05 | 岩谷産業株式会社 | Method for evaluating hydrogen gas dispenser |
| JP2017181213A (en) * | 2016-03-29 | 2017-10-05 | 岩谷産業株式会社 | Critical flow nozzle type gas flowmeter and adjustment method of gas flowmeter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0212576Y2 (en) | 1990-04-09 |
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