BE657952A - - Google Patents
Info
- Publication number
- BE657952A BE657952A BE657952A BE657952A BE657952A BE 657952 A BE657952 A BE 657952A BE 657952 A BE657952 A BE 657952A BE 657952 A BE657952 A BE 657952A BE 657952 A BE657952 A BE 657952A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/02—Volume compression or expansion in amplifiers having discharge tubes
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- 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
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- 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
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/523—Details of pulse systems
- G01S7/526—Receivers
- G01S7/529—Gain of receiver varied automatically during pulse-recurrence period
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S367/00—Communications, electrical: acoustic wave systems and devices
- Y10S367/901—Noise or unwanted signal reduction in nonseismic receiving system
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)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE27282A DE1265002B (de) | 1964-06-26 | 1964-06-26 | Echolotgeraet |
Publications (1)
Publication Number | Publication Date |
---|---|
BE657952A true BE657952A (de) | 1965-04-30 |
Family
ID=7072628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE657952A BE657952A (de) | 1964-06-26 | 1965-01-06 |
Country Status (8)
Country | Link |
---|---|
US (1) | US3350682A (de) |
JP (1) | JPS4937547B1 (de) |
BE (1) | BE657952A (de) |
DE (1) | DE1265002B (de) |
ES (1) | ES312637A1 (de) |
GB (1) | GB1115261A (de) |
NO (1) | NO117625B (de) |
SE (1) | SE305823B (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3133080C2 (de) * | 1981-08-21 | 1983-05-26 | Honeywell-Elac-Nautik Gmbh, 2300 Kiel | Schaltungsanordnung für Echolotgeräte |
CN107727176B (zh) * | 2017-10-19 | 2023-12-26 | 西安安森智能仪器股份有限公司 | 一种超声波气体流量计及其流量测量方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3094681A (en) * | 1953-06-01 | 1963-06-18 | Atlas Werke Ag | Non-linear recording amplifier |
DK89938C (da) * | 1956-07-28 | 1960-10-31 | Atlas Werke Ag | Fremgangsmåde til optegning af modtagne ekko ved ekkolodning samt forstærkerkoblinger til brug ved gennemførelse af fremgangsmåden. |
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1964
- 1964-06-26 DE DEE27282A patent/DE1265002B/de not_active Withdrawn
- 1964-11-27 NO NO155783A patent/NO117625B/no unknown
- 1964-11-30 SE SE14431/64A patent/SE305823B/xx unknown
-
1965
- 1965-01-06 BE BE657952A patent/BE657952A/xx unknown
- 1965-05-06 ES ES0312637A patent/ES312637A1/es not_active Expired
- 1965-06-26 JP JP40038067A patent/JPS4937547B1/ja active Pending
- 1965-06-28 GB GB27368/65D patent/GB1115261A/en not_active Expired
- 1965-06-28 US US467204A patent/US3350682A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3350682A (en) | 1967-10-31 |
SE305823B (de) | 1968-11-04 |
ES312637A1 (es) | 1965-07-01 |
JPS4937547B1 (de) | 1974-10-09 |
DE1265002B (de) | 1968-03-28 |
NO117625B (de) | 1969-09-01 |
GB1115261A (en) | 1968-05-29 |