GB347022A - Improvements in methods for the observation of the speed of a vessel by directed beams of ultra-audible waves - Google Patents
Improvements in methods for the observation of the speed of a vessel by directed beams of ultra-audible wavesInfo
- Publication number
- GB347022A GB347022A GB14345/30A GB1434530A GB347022A GB 347022 A GB347022 A GB 347022A GB 14345/30 A GB14345/30 A GB 14345/30A GB 1434530 A GB1434530 A GB 1434530A GB 347022 A GB347022 A GB 347022A
- Authority
- GB
- United Kingdom
- Prior art keywords
- speed
- vessel
- light
- spot
- waves
- 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
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/50—Devices characterised by the use of electric or magnetic means for measuring linear speed
- G01P3/54—Devices characterised by the use of electric or magnetic means for measuring linear speed by measuring frequency of generated current or voltage
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Gyroscopes (AREA)
Abstract
347,022. Measuring speed of a ship acoustically. CHILOWSKY, C., 15, Rue du Lunain, Paris. May 9, 1930, No. 14345. Convention date, May 11, 1929. [Class 106 (iii).] Acoustic speed indicators.-The speed of a vessel is measured by observing the Doppler effect when beams of ultra-audible waves directed obliquely towards the bottom of the sea are reflected therefrom, the frequency of the echo waves being measured by a piezo-electric wave-meter which may be graduated for direct reading. A great number of resonators having distinct frequencies are used. In the preferred form these consist of quartz or other piezo-electric crystals. These are mounted in an alternating current field affected by the reflected waves. Different resonators will be affected according to the speed of the vessel and as each is arranged in the path of a beam of polarized light which is regulated to extinguish light by means of compensators and an analyser, when one is resonated a spot of light is allowed to emerge. In one form these quartz plates are arranged in a circle and surrounded by a fixed scale adjacent which the spot of light may be read, and the speed indicated. To compensate for pitching and rolling of the vessel, the scale is moved about the centre of the circle of quartz plates by a gyroscope. In a second form a large number of plates are disposed between two coatings in a tube containing rarefied gas in which is an electrical field under which circumstances a luminous spot is produced when a crystal vibrates. Specification 227,788, [Class 118 (ii), Signals], is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR691147T | 1929-05-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB347022A true GB347022A (en) | 1931-04-23 |
Family
ID=9032357
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14345/30A Expired GB347022A (en) | 1929-05-11 | 1930-05-09 | Improvements in methods for the observation of the speed of a vessel by directed beams of ultra-audible waves |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR691147A (en) |
GB (1) | GB347022A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2528728A (en) * | 1945-08-03 | 1950-11-07 | Rincs Robert Harvey | Sound-receiving method and system |
CN113295148A (en) * | 2021-06-02 | 2021-08-24 | 国家***烟台海洋环境监测中心站 | Remote sea wave observation method based on shore optical wave meter |
-
1929
- 1929-05-11 FR FR691147D patent/FR691147A/en not_active Expired
-
1930
- 1930-05-09 GB GB14345/30A patent/GB347022A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2528728A (en) * | 1945-08-03 | 1950-11-07 | Rincs Robert Harvey | Sound-receiving method and system |
CN113295148A (en) * | 2021-06-02 | 2021-08-24 | 国家***烟台海洋环境监测中心站 | Remote sea wave observation method based on shore optical wave meter |
Also Published As
Publication number | Publication date |
---|---|
FR691147A (en) | 1930-10-01 |
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