NL78139C - - Google Patents
Info
- Publication number
- NL78139C NL78139C NL78139DA NL78139C NL 78139 C NL78139 C NL 78139C NL 78139D A NL78139D A NL 78139DA NL 78139 C NL78139 C NL 78139C
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/18—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the time taken to traverse a fixed distance
- G01P5/20—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the time taken to traverse a fixed distance using particles entrained by a fluid stream
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/005—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by using a jet directed into the fluid
- G01P5/006—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by using a jet directed into the fluid the jet used is composed of ionised or radioactive particles
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Measuring Volume Flow (AREA)
- Measuring Fluid Pressure (AREA)
- Control Of Ac Motors In General (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US33390A US2679162A (en) | 1948-06-16 | 1948-06-16 | Ionizing true air-speed indicator |
| US383466A US2783647A (en) | 1948-06-16 | 1953-10-01 | Ionizing true airspeed indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL78139C true NL78139C (fr) |
Family
ID=26709635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL78139D NL78139C (fr) | 1948-06-16 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2783647A (fr) |
| BE (1) | BE489672A (fr) |
| DE (2) | DE972121C (fr) |
| FR (1) | FR988382A (fr) |
| GB (1) | GB665298A (fr) |
| NL (1) | NL78139C (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3009098A (en) * | 1958-08-15 | 1961-11-14 | Nat Res Corp | Electrical apparatus for analyzing gases |
| US3460125A (en) * | 1964-12-10 | 1969-08-05 | Thermal Ind Of Florida Inc | Method and apparatus for detecting gaseous impurities |
| DE1950164C2 (de) * | 1969-10-04 | 1983-12-22 | Enoch Job Prof. Priceton N.J. Durbin | Ionisationsmeßgerät zur Bestimmung des Massenflusses strömender Medien |
| US4338568A (en) * | 1980-03-28 | 1982-07-06 | Nasa | Method and device for detection of a substance |
| US4376637A (en) * | 1980-10-14 | 1983-03-15 | California Institute Of Technology | Apparatus and method for destructive removal of particles contained in flowing fluid |
| GB2217906A (en) * | 1988-04-29 | 1989-11-01 | Peter Michael Jeffery Morrish | Ion particle accelerometer |
| DE102017009995A1 (de) * | 2017-10-26 | 2019-05-02 | Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen | Vorrichtung und Verfahren zur Bestimmung der Luftgeschwindigkeit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE548168C (de) * | 1932-04-09 | Anton Neuhaeusler | Lese- und Rechenkasten | |
| US2178074A (en) * | 1935-08-27 | 1939-10-31 | Telefunken Gmbh | Electrical measuring system |
| US2450341A (en) * | 1940-09-28 | 1948-09-28 | Rca Corp | Sensitive distance measurement device |
| US2569974A (en) * | 1944-04-11 | 1951-10-02 | United Aircraft Corp | Velocity measuring device |
-
0
- NL NL78139D patent/NL78139C/xx active
- BE BE489672D patent/BE489672A/xx unknown
-
1949
- 1949-02-11 GB GB3840/49A patent/GB665298A/en not_active Expired
- 1949-06-16 FR FR988382D patent/FR988382A/fr not_active Expired
-
1950
- 1950-08-24 DE DEB8900A patent/DE972121C/de not_active Expired
- 1950-08-24 DE DEB47610A patent/DE973351C/de not_active Expired
-
1953
- 1953-10-01 US US383466A patent/US2783647A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2783647A (en) | 1957-03-05 |
| DE973351C (de) | 1960-01-28 |
| FR988382A (fr) | 1951-08-27 |
| BE489672A (fr) | |
| GB665298A (en) | 1952-01-23 |
| DE972121C (de) | 1959-05-27 |