FR869453A - Device for measuring distance using the echo method - Google Patents
Device for measuring distance using the echo methodInfo
- Publication number
- FR869453A FR869453A FR869453DA FR869453A FR 869453 A FR869453 A FR 869453A FR 869453D A FR869453D A FR 869453DA FR 869453 A FR869453 A FR 869453A
- Authority
- FR
- France
- Prior art keywords
- measuring distance
- echo method
- echo
- measuring
- distance
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE869453X | 1938-12-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR869453A true FR869453A (en) | 1942-02-03 |
Family
ID=6802928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR869453D Expired FR869453A (en) | 1938-12-03 | 1941-01-23 | Device for measuring distance using the echo method |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR869453A (en) |
-
1941
- 1941-01-23 FR FR869453D patent/FR869453A/en not_active Expired
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