DE297977C - - Google Patents
Info
- Publication number
- DE297977C DE297977C DENDAT297977D DE297977DA DE297977C DE 297977 C DE297977 C DE 297977C DE NDAT297977 D DENDAT297977 D DE NDAT297977D DE 297977D A DE297977D A DE 297977DA DE 297977 C DE297977 C DE 297977C
- Authority
- DE
- Germany
- Prior art keywords
- directional
- receivers
- sound
- receiver
- receiving
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000012528 membrane Substances 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000007902 hard capsule Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- 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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE297977C true DE297977C (enrdf_load_stackoverflow) |
Family
ID=552224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT297977D Active DE297977C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE297977C (enrdf_load_stackoverflow) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2417927A (en) * | 1943-03-22 | 1947-03-25 | Automatic Elect Lab | Sound direction finder |
| US2444069A (en) * | 1945-03-02 | 1948-06-29 | Bell Telephone Labor Inc | System for receiving sounds in the presence of disturbing noises |
| US2498772A (en) * | 1941-05-15 | 1950-02-28 | Bendix Aviat Corp | Aerial torpedo |
| US2529658A (en) * | 1944-01-31 | 1950-11-14 | Brush Dev Co | Transducer and system |
-
0
- DE DENDAT297977D patent/DE297977C/de active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2498772A (en) * | 1941-05-15 | 1950-02-28 | Bendix Aviat Corp | Aerial torpedo |
| US2417927A (en) * | 1943-03-22 | 1947-03-25 | Automatic Elect Lab | Sound direction finder |
| US2529658A (en) * | 1944-01-31 | 1950-11-14 | Brush Dev Co | Transducer and system |
| US2444069A (en) * | 1945-03-02 | 1948-06-29 | Bell Telephone Labor Inc | System for receiving sounds in the presence of disturbing noises |
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