NL75425C - - Google Patents
Info
- Publication number
- NL75425C NL75425C NL75425DA NL75425C NL 75425 C NL75425 C NL 75425C NL 75425D A NL75425D A NL 75425DA NL 75425 C NL75425 C NL 75425C
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S13/585—Velocity or trajectory determination systems; Sense-of-movement determination systems processing the video signal in order to evaluate or display the velocity value
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
- G01P3/66—Devices characterised by the determination of the time taken to traverse a fixed distance using electric or magnetic means
- G01P3/665—Devices characterised by the determination of the time taken to traverse a fixed distance using electric or magnetic means for projectile velocity measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S13/583—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Radar Systems Or Details Thereof (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2524610X | 1944-06-08 | ||
GB74548A GB650965A (en) | 1948-01-09 | 1948-01-09 | Improvements in apparatus for the measurement of velocities |
Publications (1)
Publication Number | Publication Date |
---|---|
NL75425C true NL75425C (nl) |
Family
ID=32231621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL75425D NL75425C (nl) | 1944-06-08 |
Country Status (5)
Country | Link |
---|---|
US (1) | US2524610A (nl) |
BE (1) | BE478697A (nl) |
DE (1) | DE809824C (nl) |
FR (1) | FR957724A (nl) |
NL (1) | NL75425C (nl) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2666132A (en) * | 1941-01-28 | 1954-01-12 | Wilmer L Barrow | Ultrahigh-frequency bridge circuit and apparatus |
US2669710A (en) * | 1945-10-26 | 1954-02-16 | Sherr Rubby | Aircraft velocity indicating pulse echo system |
US2629865A (en) * | 1946-06-13 | 1953-02-24 | Eastern Ind Inc | Radio echo apparatus for detecting and measuring the speed of moving objects |
US2752593A (en) * | 1951-10-11 | 1956-06-26 | Sperry Rand Corp | Initiating and timing circuit for a doppler type chronograph |
US2834955A (en) * | 1951-12-17 | 1958-05-13 | Decca Record Co Ltd | Radar systems |
DE1018229B (de) * | 1956-03-24 | 1957-10-24 | Licentia Gmbh | Verfahren zur Ermittlung der Laenge oder der auf die Zeiteinheit bezogenen Laengenaenderung ausgefahrener Seile |
US2949603A (en) * | 1957-02-18 | 1960-08-16 | Gen Dynamies Corp | Relative distance and movement indicator |
US3260843A (en) * | 1957-08-07 | 1966-07-12 | Westinghouse Air Brake Co | Control circuits |
DE1156890B (de) * | 1958-03-01 | 1963-11-07 | Telefunken Patent | Verfahren zur Frequenzmessung |
FR1217655A (fr) * | 1958-07-03 | 1960-05-05 | Le Ministre Des Armees Terre | Appareil de mesure de vitesses par effet doppler-fizeau avec sortie sur chronographeenregistreur |
US3161876A (en) * | 1959-12-07 | 1964-12-15 | Lab For Electronics Inc | Pulse doppler radar system |
US3122739A (en) * | 1962-03-23 | 1964-02-25 | Spasors Inc | Movement detector |
US3199074A (en) * | 1962-06-08 | 1965-08-03 | Gen Precision Inc | Automobile traffic flow analyzer |
FR1375768A (fr) * | 1963-07-05 | 1964-10-23 | Thomson Houston Comp Francaise | Perfectionnements aux procédés et dispositifs de pilotage et d'exploitation des radars doppler |
US3438031A (en) * | 1967-11-13 | 1969-04-08 | Duncan Parking Meter Corp | Doppler radar having digital speed indicator |
FR2101028B1 (nl) * | 1970-08-10 | 1976-10-29 | France Etat | |
NL173559C (nl) * | 1970-08-14 | 1984-02-01 | Commw Of Australia | Inrichting voor het direct afleesbaar weergeven van de mondingssnelheid. |
JPS50104891A (nl) * | 1974-01-18 | 1975-08-19 | ||
FR2279113A1 (fr) * | 1974-07-17 | 1976-02-13 | Sfim | Cinemometre a effet doppler |
US4183245A (en) * | 1978-10-23 | 1980-01-15 | Leeds & Northrup Company | Synchronous frequency-to-voltage converter for doppler apparatus |
US4837718A (en) * | 1987-02-05 | 1989-06-06 | Lear Siegler, Inc. | Doppler radar method and apparatus for measuring a projectile's muzzle velocity |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2423023A (en) * | 1938-09-30 | 1947-06-24 | Rca Corp | Obstacle detection by radio waves |
US2206896A (en) * | 1938-11-16 | 1940-07-09 | Bell Telephone Labor Inc | Radiant energy distance measuring system |
US2403625A (en) * | 1940-08-16 | 1946-07-09 | Rca Corp | Drift indicator |
US2407000A (en) * | 1941-10-31 | 1946-09-03 | Rca Corp | Radio device for indicating doppler effect |
US2324077A (en) * | 1941-12-27 | 1943-07-13 | Rca Corp | Measuring circuit |
US2412003A (en) * | 1942-06-16 | 1946-12-03 | Neufeld Jacob | Navigational method and apparatus |
US2405597A (en) * | 1942-11-05 | 1946-08-13 | Bell Telephone Labor Inc | Frequency measuring system |
BE477480A (nl) * | 1944-03-20 |
-
0
- FR FR957724D patent/FR957724A/fr not_active Expired
- BE BE478697D patent/BE478697A/xx unknown
- NL NL75425D patent/NL75425C/xx active
-
1945
- 1945-09-10 US US615262A patent/US2524610A/en not_active Expired - Lifetime
-
1948
- 1948-12-24 DE DEP26421D patent/DE809824C/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR957724A (nl) | 1950-02-24 |
US2524610A (en) | 1950-10-03 |
BE478697A (nl) | |
DE809824C (de) | 1951-08-02 |