BE660542A - - Google Patents
Info
- Publication number
- BE660542A BE660542A BE660542DA BE660542A BE 660542 A BE660542 A BE 660542A BE 660542D A BE660542D A BE 660542DA BE 660542 A BE660542 A BE 660542A
- Authority
- BE
- Belgium
Links
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
- G01V1/181—Geophones
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
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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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
- G01S3/802—Systems for determining direction or deviation from predetermined direction
- G01S3/805—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristics of a transducer or transducer system to give a desired condition of signal derived from that transducer or transducer system, e.g. to give a maximum or minimum signal
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Acoustics & Sound (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Radar, Positioning & Navigation (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Geophysics And Detection Of Objects (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR965296A FR1408191A (fr) | 1964-02-27 | 1964-02-27 | Procédés et dispositifs différentiels comparateurs pour la détection et la mesure de micro-déplacements |
Publications (1)
Publication Number | Publication Date |
---|---|
BE660542A true BE660542A (it) | 1965-07-01 |
Family
ID=8824149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE660542D BE660542A (it) | 1964-02-27 | 1965-03-03 |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE660542A (it) |
CH (1) | CH432021A (it) |
DE (1) | DE1932871U (it) |
ES (1) | ES309774A1 (it) |
FR (1) | FR1408191A (it) |
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1964
- 1964-02-27 FR FR965296A patent/FR1408191A/fr not_active Expired
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1965
- 1965-02-24 ES ES0309774A patent/ES309774A1/es not_active Expired
- 1965-02-26 CH CH268765A patent/CH432021A/fr unknown
- 1965-02-26 DE DE1965R0030131 patent/DE1932871U/de not_active Expired
- 1965-03-03 BE BE660542D patent/BE660542A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
ES309774A1 (es) | 1965-10-01 |
DE1932871U (de) | 1966-02-17 |
FR1408191A (fr) | 1965-08-13 |
CH432021A (fr) | 1967-03-15 |