GB278388A - Apparatus for indicating the time interval elapsing between the sending and receipt of an impulse, such as sounding apparatus, or the like - Google Patents
Apparatus for indicating the time interval elapsing between the sending and receipt of an impulse, such as sounding apparatus, or the likeInfo
- Publication number
- GB278388A GB278388A GB26052/27A GB2605227A GB278388A GB 278388 A GB278388 A GB 278388A GB 26052/27 A GB26052/27 A GB 26052/27A GB 2605227 A GB2605227 A GB 2605227A GB 278388 A GB278388 A GB 278388A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pointer
- transformer
- impulse
- tube
- received
- 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
- 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
- G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
278,388. British Thomson-Houston Co., Ltd., (Assignees of Langmuir, I.). Oct. 2, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Thermionic valve circuits.-In apparatus for measuring small intervals of time, particularly applicable to the determination of depths and distances by means of reflected waves of sound, a rotating pointer 29 carries a neon tube which is caused to flash when the impulses from a transmitting device 1 are received by a microphone 4 or the like. The pointer 29 is rotated at a constant speed by a motor, and, when in the vertical position, is adapted by means of a contact 35 and a slip ring 36 to close relay 3 so as to energize the transmitting device 1. The impulses are reflected from the ocean bed 37 to the receiver 4, and are applied through a transformer 11<1> to the grid circuit of an amplifier 5, which is coupled by a transformer 16 to a vapour electric tube 6. The change in grid potential renders the tube 6 conductive, and so allows a condenser 25 to discharge The condenser is energized from a sources 7 and the resulting discharge current, acting through a transformer 24 and slip rings 32, 33, '' flashes " the neon lamp on the pointer 29. The distance which the pointer 29 has rotated from its vertical position when the flash appears determines the depth of the water, this depth being indicated on a scale 28. To measure the time an impulse takes to travel from the device 4 to a given point, a, second receiving device located at that point is connected to a transformer 16<1> through an amplifier similar to 5. An impulse emitted from a transmitter close to the device 4 is immediately received thereby, and after a certain interval is received by the second receiver, the time interval being indicated by the successive flashes of the neon tube, as the pointer 29 travels over the scale 28.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US278388XA | 1926-10-02 | 1926-10-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB278388A true GB278388A (en) | 1928-06-07 |
Family
ID=21840072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26052/27A Expired GB278388A (en) | 1926-10-02 | 1927-10-03 | Apparatus for indicating the time interval elapsing between the sending and receipt of an impulse, such as sounding apparatus, or the like |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR648852A (en) |
GB (1) | GB278388A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2433838A (en) * | 1938-12-01 | 1948-01-06 | Elie Maurice | System for object detection and distance measurement |
-
1927
- 1927-09-23 FR FR648852D patent/FR648852A/en not_active Expired
- 1927-10-03 GB GB26052/27A patent/GB278388A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2433838A (en) * | 1938-12-01 | 1948-01-06 | Elie Maurice | System for object detection and distance measurement |
Also Published As
Publication number | Publication date |
---|---|
FR648852A (en) | 1928-12-14 |
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