NL40221C - - Google Patents
Info
- Publication number
- NL40221C NL40221C NL68819A NL68819A NL40221C NL 40221 C NL40221 C NL 40221C NL 68819 A NL68819 A NL 68819A NL 68819 A NL68819 A NL 68819A NL 40221 C NL40221 C NL 40221C
- 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
- G01S13/06—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
-
- 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
- G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
- G01S15/12—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
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Measuring Volume Flow (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL68819A NL40221C (xx) | 1934-03-21 | 1934-03-21 | |
GB744835A GB453164A (en) | 1934-03-21 | 1935-03-09 | Improvements in or relating to methods of echo sounding |
FR787383D FR787383A (fr) | 1934-03-21 | 1935-03-14 | Nouveau procédé de sondage par écho |
DEA75630D DE725379C (de) | 1934-03-21 | 1935-03-22 | Verfahren zur Entfernungsmessung nach der Echomethode |
FR46973D FR46973E (fr) | 1934-03-21 | 1936-01-18 | Nouveau procédé de sondage par écho |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL68819A NL40221C (xx) | 1934-03-21 | 1934-03-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL40221C true NL40221C (xx) | 1937-03-15 |
Family
ID=19786326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL68819A NL40221C (xx) | 1934-03-21 | 1934-03-21 |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE725379C (xx) |
FR (2) | FR787383A (xx) |
GB (1) | GB453164A (xx) |
NL (1) | NL40221C (xx) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB657314A (en) * | 1947-07-02 | 1951-09-19 | Bendix Aviat Corp | Echo ranging apparatus |
DE886529C (de) * | 1950-03-21 | 1953-08-13 | Hoerder Huettenunion Ag | Feststellen des leeren Raumes zwischen Beschickungssaeule und der Gicht bei Schachtoefen, insbesondere Hochoefen |
DE962589C (de) * | 1953-12-08 | 1957-04-25 | Electroacustic Ges M B H | Nach dem Impulsrueckstrahlverfahren arbeitende Echoloteinrichtung |
US2890437A (en) * | 1955-07-18 | 1959-06-09 | Honeywell Regulator Co | Sonar apparatus |
-
1934
- 1934-03-21 NL NL68819A patent/NL40221C/xx active
-
1935
- 1935-03-09 GB GB744835A patent/GB453164A/en not_active Expired
- 1935-03-14 FR FR787383D patent/FR787383A/fr not_active Expired
- 1935-03-22 DE DEA75630D patent/DE725379C/de not_active Expired
-
1936
- 1936-01-18 FR FR46973D patent/FR46973E/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR787383A (fr) | 1935-09-21 |
DE725379C (de) | 1942-09-21 |
GB453164A (en) | 1936-09-07 |
FR46973E (fr) | 1936-11-23 |