FR550856A - Method and device for measuring distances using pulses of sound - Google Patents
Method and device for measuring distances using pulses of soundInfo
- Publication number
- FR550856A FR550856A FR550856DA FR550856A FR 550856 A FR550856 A FR 550856A FR 550856D A FR550856D A FR 550856DA FR 550856 A FR550856 A FR 550856A
- Authority
- FR
- France
- Prior art keywords
- pulses
- sound
- measuring distances
- distances
- measuring
- 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
- 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
-
- 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)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA0035565 | 1921-05-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR550856A true FR550856A (en) | 1923-03-22 |
Family
ID=6929116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR550856D Expired FR550856A (en) | 1921-05-24 | 1922-05-01 | Method and device for measuring distances using pulses of sound |
Country Status (3)
Country | Link |
---|---|
FR (1) | FR550856A (en) |
GB (2) | GB180646A (en) |
NL (1) | NL10680C (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2460316A (en) * | 1944-07-31 | 1949-02-01 | Horace M Trent | Echo ranging and listening gear |
GB0715368D0 (en) | 2007-08-07 | 2007-09-19 | Qinetiq Ltd | Range-finding method and apparatus |
-
0
- NL NL10680D patent/NL10680C/xx active
-
1922
- 1922-04-20 GB GB1114722A patent/GB180646A/en not_active Expired
- 1922-04-21 GB GB1127522A patent/GB180647A/en not_active Expired
- 1922-05-01 FR FR550856D patent/FR550856A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB180647A (en) | 1923-02-08 |
GB180646A (en) | 1923-02-08 |
NL10680C (en) |
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