BE223957A - - Google Patents
Info
- Publication number
- BE223957A BE223957A BE223957DA BE223957A BE 223957 A BE223957 A BE 223957A BE 223957D A BE223957D A BE 223957DA BE 223957 A BE223957 A BE 223957A
- Authority
- BE
- Belgium
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
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
- G01S13/12—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the pulse-recurrence frequency is varied to provide a desired time relationship between the transmission of a pulse and the receipt of the echo of a preceding pulse
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US652200A US1585591A (en) | 1923-07-17 | 1923-07-17 | Means for electric proof and measuring of the distance of electricallyconductive bodies |
GB18730/23A GB223957A (en) | 1923-07-17 | 1923-07-20 | Improved means for electrically exploring the interior of the earth and for other purposes |
Publications (1)
Publication Number | Publication Date |
---|---|
BE223957A true BE223957A (fi) | 1900-01-01 |
Family
ID=62152182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE223957D BE223957A (fi) | 1923-07-17 |
Country Status (5)
Country | Link |
---|---|
US (1) | US1585591A (fi) |
BE (1) | BE223957A (fi) |
DE (1) | DE403939C (fi) |
FR (1) | FR574968A (fi) |
GB (1) | GB223957A (fi) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE767966C (de) * | 1934-06-12 | 1955-05-05 | Siemens App | Verfahren und Einrichtungen zur Entfernungsbestimmung |
DE767353C (de) * | 1935-06-28 | 1952-06-13 | Lorenz A G C | Verfahren zur Messung von Abstaenden nach der Impulsmethode |
DE767403C (de) * | 1935-07-03 | 1952-09-22 | Lorenz A G C | Verfahren zur Messung von Abstaenden durch Vergleich der Laufzeit reflektierter Impulse mit der Impulsfrequenz |
DE767625C (de) * | 1935-11-27 | 1953-03-23 | Lorenz C Ag | Anordnung zur Entfernungsmessung mittels reflektierter Impulse |
DE767456C (de) * | 1935-12-02 | 1952-09-08 | Lorenz C Ag | Anordnung zur Sperrung von Empfaengern |
DE767397C (de) * | 1936-01-24 | 1952-07-31 | Lorenz A G C | Verfahren zur gleichzeitigen Entfernungs- und Richtungsbestimmung |
DE925198C (de) * | 1936-04-28 | 1955-03-14 | Telefunken Gmbh | Einrichtung zur gleichzeitigen Anzeige sowohl des Abstandes als auch der genauen Richtung mehrerer reflektierender Gegenstaende |
DE767357C (de) * | 1936-11-18 | 1952-06-13 | Lorenz A G C | Anordnung zur Entfernungsmessung nach dem Impulsreflexionsprinzip |
DE767405C (de) * | 1937-01-24 | 1952-07-31 | Lorenz A G C | Schaltungsanordnung zur impulsmaessigen UEberlastung von Senderoehren |
US2415095A (en) * | 1938-01-17 | 1947-02-04 | Board | Radio measurement of distances and velocities |
US2415094A (en) * | 1938-01-17 | 1947-02-04 | Board | Radio measurement of distances and velocities |
DE757154C (de) * | 1938-02-16 | 1952-09-15 | Csf | Impulsgenerator |
DE767408C (de) * | 1939-02-03 | 1952-08-07 | Telefunken Gmbh | Aus Sender und Empfaenger bestehendes, im Kurz- oder Ultrakurzwellengebiet arbeitendes Rueckstrahlgeraet |
DE767455C (de) * | 1939-12-28 | 1952-08-14 | Hans Heil | Verfahren zur Entfernungs- und Geschwindigkeitsbestimmung reflektierender bewegter Objekte |
FR958877A (fi) * | 1940-04-12 | 1950-03-21 | ||
US2542983A (en) * | 1941-12-19 | 1951-02-27 | Int Standard Electric Corp | Arrangement for determining distances by reflection of electrical pulses |
US2457199A (en) * | 1942-01-09 | 1948-12-28 | Best Frank Ellison | Proximity and direction indicator |
US2454772A (en) * | 1942-03-20 | 1948-11-30 | Standard Telephones Cables Ltd | Pulse echo system for distance measuring |
US2445584A (en) * | 1942-04-13 | 1948-07-20 | Gen Electric | Pulse receiving system |
US2426581A (en) * | 1942-07-01 | 1947-09-02 | Tungsol Lamp Works Inc | Method of and apparatus for concurent radio transmission and reception |
US2481515A (en) * | 1943-03-30 | 1949-09-13 | Sperry Corp | Method and apparatus for pulseecho distance measuring |
US2523858A (en) * | 1943-04-17 | 1950-09-26 | Henry R Bodemuller | Radio apparatus for visualizing distant objects |
US2705319A (en) * | 1943-05-07 | 1955-03-29 | Dauber Harry | Detection of changes in terrain reflection coefficient |
US2636924A (en) * | 1944-11-01 | 1953-04-28 | Lundberg Explorations Ltd | Method of geophysical exploration |
US2591856A (en) * | 1944-12-09 | 1952-04-08 | Bell Telephone Labor Inc | Pulse echo distance indicator |
US2803819A (en) * | 1945-06-07 | 1957-08-20 | William R Blair | Object locating system |
US2568336A (en) * | 1947-04-09 | 1951-09-18 | Rca Corp | Cathode-ray tube commutator system |
US2738502A (en) * | 1947-12-30 | 1956-03-13 | Esther M Armstrong | Radio detection and ranging systems |
US2632160A (en) * | 1949-10-01 | 1953-03-17 | H M R Electronics Inc | Radar range system |
US2901688A (en) * | 1954-02-10 | 1959-08-25 | Engineering Res Corp | Method of exploring the earth with electromagnetic energy |
US3102261A (en) * | 1958-01-27 | 1963-08-27 | Bendix Corp | Sonic altimeter |
NL277552A (fi) * | 1961-04-24 | |||
GB1054455A (fi) * | 1964-02-25 | |||
GB1364808A (en) * | 1971-12-08 | 1974-08-29 | Sendai Television Broadcasting | Simultaneous radio communication system |
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0
- BE BE223957D patent/BE223957A/xx unknown
-
1923
- 1923-07-03 DE DEL58224D patent/DE403939C/de not_active Expired
- 1923-07-17 US US652200A patent/US1585591A/en not_active Expired - Lifetime
- 1923-07-20 GB GB18730/23A patent/GB223957A/en not_active Expired
- 1923-08-04 FR FR574968D patent/FR574968A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1585591A (en) | 1926-05-18 |
GB223957A (en) | 1924-10-20 |
FR574968A (fr) | 1924-07-22 |
DE403939C (de) | 1924-10-07 |