GB172637A - Improvements in sound receivers, particularly for receiving sound waves in liquids - Google Patents
Improvements in sound receivers, particularly for receiving sound waves in liquidsInfo
- Publication number
- GB172637A GB172637A GB32844/21A GB3284421A GB172637A GB 172637 A GB172637 A GB 172637A GB 32844/21 A GB32844/21 A GB 32844/21A GB 3284421 A GB3284421 A GB 3284421A GB 172637 A GB172637 A GB 172637A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diaphragm
- coupling
- structures
- oscillatory
- liquids
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/26—Lead-in insulators; Lead-through insulators
- H01B17/28—Capacitor type
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/18—Rotary transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
172,637. Signal Ges. Dec. 7, 1920, [Convention date]. Subaqueous audible signals.-Receivers for sound signals, particularly for use in liquids, are so constructed that any oscillatory structures are so loosely coupled between themselves or with any detector that the degree of coupling is less than 40 per cent. When there are more than two oscillatory structures, the peaks of the resonance curve of one couple may be brought closer together by the coupling with the other structures. A formula is given for determining the degree of coupling between any pair of oscillatory, structures, but this may also be determined experimentally from the frequencies developed on couplings. In an example, Fig. 1 there are two diaphragms 1, 2 of which 1 only carries a microphone 4. The couplings are those between the diaphragm 1 and the diaphragm 2 through the casing 3, and between the diaphragm 1 and the microphone 4 through one electrode. In Fig. 2, a resonating chamber 9 is connected with the space behind each of the diaphragms 1, 2, by very small holes 7, 8. The resonator 9 is connected with a listening tube 10. In a further example, a ring acting as a detector is attached by a spring to the back of the casing and oscillates in a magnetic field. In each case the various structures which are loosely coupled are tuned independently to the signal frequency, which lies between the peaks of the resonance curves due to the coupling. Specification 150,322 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that diaphragm 2, Fig. 2, can be replaced bv a rigid wall and the air chamber between diaphragm 1 and the hole 7 is then constructed as a resonator with less than 40 per cent coupling with the diaphragm 1. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES54944D DE387509C (en) | 1920-12-07 | 1920-12-07 | System for the transmission of sound signals in any media (water, air) |
Publications (1)
Publication Number | Publication Date |
---|---|
GB172637A true GB172637A (en) | 1923-06-07 |
Family
ID=7490136
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB32844/21A Expired GB172637A (en) | 1920-12-07 | 1921-12-07 | Improvements in sound receivers, particularly for receiving sound waves in liquids |
GB2759/23A Expired GB192696A (en) | 1920-12-07 | 1923-01-30 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2759/23A Expired GB192696A (en) | 1920-12-07 | 1923-01-30 |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE387509C (en) |
FR (2) | FR544869A (en) |
GB (2) | GB172637A (en) |
NL (2) | NL15110C (en) |
-
0
- NL NL16965D patent/NL16965C/xx active
- NL NL15110D patent/NL15110C/xx active
-
1920
- 1920-12-07 DE DES54944D patent/DE387509C/en not_active Expired
-
1921
- 1921-12-07 GB GB32844/21A patent/GB172637A/en not_active Expired
- 1921-12-07 FR FR544869D patent/FR544869A/en not_active Expired
-
1923
- 1923-01-15 FR FR27240D patent/FR27240E/en not_active Expired
- 1923-01-30 GB GB2759/23A patent/GB192696A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR544869A (en) | 1922-10-02 |
FR27240E (en) | 1924-05-24 |
NL16965C (en) | |
NL15110C (en) | |
GB192696A (en) | 1924-04-10 |
DE387509C (en) | 1924-01-05 |
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