JPS54113373A - Measurement of gas flow velocity - Google Patents
Measurement of gas flow velocityInfo
- Publication number
- JPS54113373A JPS54113373A JP1978078A JP1978078A JPS54113373A JP S54113373 A JPS54113373 A JP S54113373A JP 1978078 A JP1978078 A JP 1978078A JP 1978078 A JP1978078 A JP 1978078A JP S54113373 A JPS54113373 A JP S54113373A
- Authority
- JP
- Japan
- Prior art keywords
- flow
- purge
- gases
- hot
- sensor
- 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
Landscapes
- Measuring Volume Flow (AREA)
Abstract
PURPOSE: To make it possible to accomplish the accurate measurement, while preventing reduction in sensitivity, by making a hot-wire flow meter such that only the clean gases for purge are always measured thereby to always bring the sensor into the clean gases.
CONSTITUTION: When electromagnetic valves 7 and 10 are opened whereas electromagnexic valves 8 and 9 are closed, purge gases will flow through a total pressure side communication conduit 3 and a static pressure side communication conduit 4 thereby to effect the gas purge up to the leading end of a pitoh tube 2. When the valves 7 and 10 are closed and the velves 8 and 9 are opened, the flow of the purge gases is established in the direction of arrow 18 in a measuring conduit 17 by the pressure difference established by the pitoh tube 2. The flow of the purge gases is brought into contact with the hot-wire sensor 12 of a hot-wire flow meter 11. Since, in this instance, the output E of the flow meter 11 is proportional to the flow velocity v and the pressure p in the gas duct, the compensation due to the fluid pressure so that the accurate flow velocity can be measured. Since, moreover, the sensor 12 contacts always with the clean gases, the reduction in sensitivity can be prevented.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978078A JPS603617B2 (en) | 1978-02-24 | 1978-02-24 | How to measure gas flow velocity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978078A JPS603617B2 (en) | 1978-02-24 | 1978-02-24 | How to measure gas flow velocity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54113373A true JPS54113373A (en) | 1979-09-04 |
| JPS603617B2 JPS603617B2 (en) | 1985-01-29 |
Family
ID=12008829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978078A Expired JPS603617B2 (en) | 1978-02-24 | 1978-02-24 | How to measure gas flow velocity |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS603617B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59131116A (en) * | 1983-01-17 | 1984-07-27 | Nippon Furooseru Kk | Air blower |
| JP2017530364A (en) * | 2014-09-30 | 2017-10-12 | ディーテリヒ・スタンダード・インコーポレーテッド | Integrated flow measurement probe with extended measurement range |
-
1978
- 1978-02-24 JP JP1978078A patent/JPS603617B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59131116A (en) * | 1983-01-17 | 1984-07-27 | Nippon Furooseru Kk | Air blower |
| JP2017530364A (en) * | 2014-09-30 | 2017-10-12 | ディーテリヒ・スタンダード・インコーポレーテッド | Integrated flow measurement probe with extended measurement range |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS603617B2 (en) | 1985-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS54158524A (en) | Engine suction air volume measuring device for car | |
| JPS54113373A (en) | Measurement of gas flow velocity | |
| JPS5596422A (en) | Flow rate measuring device | |
| JPS5679936A (en) | Leakage detecting method | |
| JPS5578231A (en) | Gas density measuring unit | |
| JPS5565117A (en) | Detection method of gas flow rate | |
| JPS5713319A (en) | Measuring instrument for liquid level | |
| JPS5540223A (en) | Engine intake air measuring device | |
| JPS5563732A (en) | Leakage measuring device | |
| Mottram | Measuring pulsating flow with a differential pressure meter | |
| JPS56111423A (en) | Measuring device for gas flow rate of nozzle valve or the like | |
| SE9803048D0 (en) | Dispenser unit for non-gaseous flowable material | |
| US3196681A (en) | Apparatus for measuring the flow of a gas | |
| KR900013296A (en) | How to measure the flow rate of exhaust gas | |
| JPS5748634A (en) | Isokinetic sampling device | |
| CN85103502B (en) | Gas flowmeter | |
| JPS5467460A (en) | Gas flow meter | |
| JPS5467461A (en) | Gas flow meter | |
| JPS5467462A (en) | Gas flow meter | |
| JPS5431785A (en) | Eddy current type current meter | |
| JPS5589713A (en) | Flow meter of karman's vortex | |
| JPS5562312A (en) | Flowmeter of pitot orifice | |
| JPS5548613A (en) | Air flow meter | |
| JPS5443796A (en) | Enzyme electrode | |
| JPS5642147A (en) | Method and device for measuring flow speed |