GB682723A - Echo distance measuring circuit - Google Patents
Echo distance measuring circuitInfo
- Publication number
- GB682723A GB682723A GB19732/50A GB1973250A GB682723A GB 682723 A GB682723 A GB 682723A GB 19732/50 A GB19732/50 A GB 19732/50A GB 1973250 A GB1973250 A GB 1973250A GB 682723 A GB682723 A GB 682723A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oscillator
- receiver
- neon
- capacitor
- transducer
- 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.)
- Expired
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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
- G01S7/034—Duplexers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US682723XA | 1949-08-24 | 1949-08-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB682723A true GB682723A (en) | 1952-11-12 |
Family
ID=22081515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19732/50A Expired GB682723A (en) | 1949-08-24 | 1950-08-08 | Echo distance measuring circuit |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE497725A (es) |
FR (1) | FR1025043A (es) |
GB (1) | GB682723A (es) |
-
0
- BE BE497725D patent/BE497725A/xx unknown
-
1950
- 1950-08-08 GB GB19732/50A patent/GB682723A/en not_active Expired
- 1950-08-23 FR FR1025043D patent/FR1025043A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE497725A (es) | |
FR1025043A (fr) | 1953-04-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2333688A (en) | Distance measuring system | |
US2422204A (en) | Range indicator | |
GB406903A (en) | Methods and apparatus for measuring distances | |
US2431854A (en) | Apparatus for suppressing reverberation | |
US2460316A (en) | Echo ranging and listening gear | |
US2534872A (en) | Pulse producing apparatus | |
GB592577A (en) | Improvements relating to calibration arrangements for oscillographs and their application to radio obstacle detection systems | |
US2424030A (en) | Balanced driver for sonic depth finders | |
US2232858A (en) | Frequency meter | |
US2446937A (en) | Echo sounding indicator | |
US2491020A (en) | Echo ranging apparatus | |
US2602922A (en) | Sensitivity time control | |
GB682723A (en) | Echo distance measuring circuit | |
GB627982A (en) | Methods and apparatus for radio echo ranging | |
US2519898A (en) | Depth measuring equipment | |
GB635337A (en) | Improvements in and apparatus for submarine echo ranging | |
US2449358A (en) | Echo sounding system with sensitivity control | |
US2444721A (en) | Wave-signal translating system | |
US2201943A (en) | Sending and receiving circuit | |
US2482128A (en) | Receiver protection circuit | |
US2572668A (en) | Echo distance measuring circuit | |
US2539001A (en) | Echo ranging apparatus | |
US2468302A (en) | Quadrature phase shifting circuit | |
US2642562A (en) | Echo distance measuring circuit | |
US2478208A (en) | Wave measuring system |