JPS63120132U - - Google Patents
Info
- Publication number
- JPS63120132U JPS63120132U JP984087U JP984087U JPS63120132U JP S63120132 U JPS63120132 U JP S63120132U JP 984087 U JP984087 U JP 984087U JP 984087 U JP984087 U JP 984087U JP S63120132 U JPS63120132 U JP S63120132U
- Authority
- JP
- Japan
- Prior art keywords
- laminar flow
- flow tube
- test object
- air
- pressure
- 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
- 238000004092 self-diagnosis Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
- Examining Or Testing Airtightness (AREA)
Description
図面は本考案の一実施例を示す概略構成図であ
る。
図面中、１は検査対象物、２は圧力源、３は配
管、４は層流管、５は差圧センサー、６，７，１
２，１５は切替弁、８はバイパス通路、９は減圧
弁、１０は圧力計、１１は圧力スイツチ、１３は
ニードル弁、１４は固定オリフイスである。
The drawing is a schematic diagram showing an embodiment of the present invention. In the drawing, 1 is an object to be inspected, 2 is a pressure source, 3 is a pipe, 4 is a laminar flow pipe, 5 is a differential pressure sensor, 6, 7, 1
2 and 15 are switching valves, 8 is a bypass passage, 9 is a pressure reducing valve, 10 is a pressure gauge, 11 is a pressure switch, 13 is a needle valve, and 14 is a fixed orifice.
Claims (1)
へ供給すると共に前記層流管の入口側と出口側と
の圧力差を検出するエアフローテスターにおいて
、前記層流管と等しい断面積の固定オリフイスを
切替弁を介して前記検査対象物と並列に前記層流
管に接続する一方、前記層流管の上流側に圧力計
を介設することを特徴とするエアフローテスター
の自己診断装置。 In an air flow tester that supplies air from a pressure source to an object to be tested through a laminar flow tube and detects the pressure difference between the inlet side and outlet side of the laminar flow tube, a fixed orifice with a cross-sectional area equal to that of the laminar flow tube is switched. A self-diagnosis device for an air flow tester, characterized in that the test object is connected to the laminar flow pipe in parallel with the test object through a valve, and a pressure gauge is interposed on the upstream side of the laminar flow pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP984087U JPS63120132U (en) | 1987-01-28 | 1987-01-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP984087U JPS63120132U (en) | 1987-01-28 | 1987-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63120132U true JPS63120132U (en) | 1988-08-03 |
Family
ID=30795534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP984087U Pending JPS63120132U (en) | 1987-01-28 | 1987-01-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63120132U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5467461A (en) * | 1977-11-09 | 1979-05-30 | Mitsubishi Electric Corp | Gas flow meter |
-
1987
- 1987-01-28 JP JP984087U patent/JPS63120132U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5467461A (en) * | 1977-11-09 | 1979-05-30 | Mitsubishi Electric Corp | Gas flow meter |