GB406903A - Methods and apparatus for measuring distances - Google Patents

Methods and apparatus for measuring distances

Info

Publication number
GB406903A
GB406903A GB1778533A GB1778533A GB406903A GB 406903 A GB406903 A GB 406903A GB 1778533 A GB1778533 A GB 1778533A GB 1778533 A GB1778533 A GB 1778533A GB 406903 A GB406903 A GB 406903A
Authority
GB
United Kingdom
Prior art keywords
signal
oscillograph
cathode
echo
oscillator
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
Application number
GB1778533A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Submarine Signal Co
Original Assignee
Submarine Signal Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Submarine Signal Co filed Critical Submarine Signal Co
Priority to GB1778533A priority Critical patent/GB406903A/en
Publication of GB406903A publication Critical patent/GB406903A/en
Application status is Expired legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S1/00Beacons 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
    • G01S1/72Beacons 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

Abstract

406,903. Indicating proximity of earth or other bodies. SUBMARINE SIGNAL CO. (LONDON), Ltd., 9, Victoria Street, London.-(Submarine Signal Co. ; 160, State Street, Boston, U.S.A.) June 22, 1933, No. 17785. [Class 37.] An aeroplane carries a cathode-ray oscillograph for timing the echo of a wireless signal reflected from the earth. The oscillograph plates 59, 61 may be charged in quadrature from a 1000-metre oscillator which is stabilized by the crystal 53, so that the cathode beam traces a circular path at one revolution per cycle of the oscillator. The signal is emitted by a 5-metre transmitter 54 once per cycle at instants when the paralyzing bias of battery 55 is overcome, at the peak of the low-frequency oscillation, by e.m.f. applied through the coupling 51. The echo is picked up by a receiving loop 63 and acts through the control grid 64 to produce a serration in the oscillograph trace. The echo-receiver is protected against the outgoing signal by a reversed coupling 22. In a modification (Fig. 4, not shown), the signal may be of wave-length 1000 metres and derived from the oscillator which energizes the oscillograph plates. It is continuously transmitted, and the cathode beam is suppressed except when its negative bias is overcome by the peak of the reflected. wave. The position of the cathode spot on a circular scale therefore indicates the phase difference between the emitted and received waves. In a further modification (Fig. 7, not shown), the lowerfrequency oscillation which controls the rotation of the oscillograph beam is also used to overmodulate the high-frequency transmitter, so that only a brief impulse is transmitted once per lower-frequency cycle, at a definite phase of the lower-frequency oscillation. The control electrode 64 may be replaced by an exterior coil. The fluorescent screen mav be covered by a mask having a circular slit, so that the trace of the cathode beam is visible only at the instant when the reply signal is received.
GB1778533A 1933-06-22 1933-06-22 Methods and apparatus for measuring distances Expired GB406903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1778533A GB406903A (en) 1933-06-22 1933-06-22 Methods and apparatus for measuring distances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1778533A GB406903A (en) 1933-06-22 1933-06-22 Methods and apparatus for measuring distances

Publications (1)

Publication Number Publication Date
GB406903A true GB406903A (en) 1934-03-08

Family

ID=10101149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1778533A Expired GB406903A (en) 1933-06-22 1933-06-22 Methods and apparatus for measuring distances

Country Status (1)

Country Link
GB (1) GB406903A (en)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743735C (en) * 1940-04-12 1943-12-31 Debeg Arrangement for reading scale with luminescent screen and RESISTANT Kathodenstrahlroehren short time measuring devices, in particular devices for EchoSounder
DE745712C (en) * 1938-01-15 1944-05-19 Siemens Ag A method for measurement of pulse times with Kathodenstrahlroehren
DE750625C (en) * 1937-06-29 1945-01-20 A method of wireless Fernuebertragung of pointer positions by means of multiple transmission Traegerstrom
US2419219A (en) * 1943-05-25 1947-04-22 Sperry Gyroscope Co Inc Phase responsive circuits
US2427220A (en) * 1942-11-14 1947-09-09 Rca Corp Radio position indicating system
US2435680A (en) * 1944-02-26 1948-02-10 Du Mont Allen B Lab Inc Apparatus for electrically testing material
US2439877A (en) * 1943-10-06 1948-04-20 Bendix Aviat Corp Cathode-ray phase indicator
US2449792A (en) * 1946-01-31 1948-09-21 Rca Corp Cathode-ray-tube scanning circuit
US2473974A (en) * 1944-05-18 1949-06-21 Schuck Oscar Hugo Underwater sound detecting and indicating system
US2474219A (en) * 1942-09-14 1949-06-28 Standard Telephones Cables Ltd Pulse generating system
US2477640A (en) * 1944-06-27 1949-08-02 Homer R Montague Sound recording method and apparatus
US2482194A (en) * 1944-05-13 1949-09-20 Du Mont Allen B Lab Inc Ballistoscope
US2491684A (en) * 1946-11-08 1949-12-20 Philco Corp Deflecting signal generator
US2556211A (en) * 1943-03-11 1951-06-12 Robert M Page Precision range indicating system
US2586395A (en) * 1948-10-12 1952-02-19 Westinghouse Electric Corp Circuit cathode-ray oscilloscope
DE767357C (en) * 1936-11-18 1952-06-13 Lorenz C Ag An arrangement for distance measurement using the pulse reflection principle
US2617982A (en) * 1942-04-30 1952-11-11 Sperry Corp Radio gun control system
DE862188C (en) * 1942-02-07 1953-01-08 Aga Baltic A B A device for measuring of phase angles, for example for the determination of a Funkpeilrichtung
DE898036C (en) * 1944-01-04 1953-11-26 Svenska Aktiebolag Gasaccumula A device for measuring of phase angles, for example for the determination of a Funkpeilrichtung
DE904436C (en) * 1941-01-28 1954-02-18 Atlas Werke Ag A method for recording a two-coordinate system on the phosphor screen of a Braun tube
DE907029C (en) * 1936-03-31 1954-03-18 Atlas Werke Ag Means for measuring Zeitabstaenden, in particular for depth sounder devices
DE914119C (en) * 1936-11-07 1954-06-24 Siemens Ag Elektronenstrahloszillograph for the purpose of short-term measurement
DE767956C (en) * 1937-06-10 1955-04-07 Siemens App Und Maschinen Gmbh A method for transmitting signals
DE767958C (en) * 1938-12-22 1955-04-07 Siemens App Und Maschinen Gmbh Arrangement for short-time measurement
US2729765A (en) * 1946-01-08 1956-01-03 Norman B Saunders Range indicator for scanning echo ranging systems

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE907029C (en) * 1936-03-31 1954-03-18 Atlas Werke Ag Means for measuring Zeitabstaenden, in particular for depth sounder devices
DE914119C (en) * 1936-11-07 1954-06-24 Siemens Ag Elektronenstrahloszillograph for the purpose of short-term measurement
DE767357C (en) * 1936-11-18 1952-06-13 Lorenz C Ag An arrangement for distance measurement using the pulse reflection principle
DE767956C (en) * 1937-06-10 1955-04-07 Siemens App Und Maschinen Gmbh A method for transmitting signals
DE750625C (en) * 1937-06-29 1945-01-20 A method of wireless Fernuebertragung of pointer positions by means of multiple transmission Traegerstrom
DE745712C (en) * 1938-01-15 1944-05-19 Siemens Ag A method for measurement of pulse times with Kathodenstrahlroehren
DE767958C (en) * 1938-12-22 1955-04-07 Siemens App Und Maschinen Gmbh Arrangement for short-time measurement
DE743735C (en) * 1940-04-12 1943-12-31 Debeg Arrangement for reading scale with luminescent screen and RESISTANT Kathodenstrahlroehren short time measuring devices, in particular devices for EchoSounder
DE904436C (en) * 1941-01-28 1954-02-18 Atlas Werke Ag A method for recording a two-coordinate system on the phosphor screen of a Braun tube
DE862188C (en) * 1942-02-07 1953-01-08 Aga Baltic A B A device for measuring of phase angles, for example for the determination of a Funkpeilrichtung
US2617982A (en) * 1942-04-30 1952-11-11 Sperry Corp Radio gun control system
US2474219A (en) * 1942-09-14 1949-06-28 Standard Telephones Cables Ltd Pulse generating system
US2427220A (en) * 1942-11-14 1947-09-09 Rca Corp Radio position indicating system
US2556211A (en) * 1943-03-11 1951-06-12 Robert M Page Precision range indicating system
US2419219A (en) * 1943-05-25 1947-04-22 Sperry Gyroscope Co Inc Phase responsive circuits
US2439877A (en) * 1943-10-06 1948-04-20 Bendix Aviat Corp Cathode-ray phase indicator
DE898036C (en) * 1944-01-04 1953-11-26 Svenska Aktiebolag Gasaccumula A device for measuring of phase angles, for example for the determination of a Funkpeilrichtung
US2435680A (en) * 1944-02-26 1948-02-10 Du Mont Allen B Lab Inc Apparatus for electrically testing material
US2482194A (en) * 1944-05-13 1949-09-20 Du Mont Allen B Lab Inc Ballistoscope
US2473974A (en) * 1944-05-18 1949-06-21 Schuck Oscar Hugo Underwater sound detecting and indicating system
US2477640A (en) * 1944-06-27 1949-08-02 Homer R Montague Sound recording method and apparatus
US2729765A (en) * 1946-01-08 1956-01-03 Norman B Saunders Range indicator for scanning echo ranging systems
US2449792A (en) * 1946-01-31 1948-09-21 Rca Corp Cathode-ray-tube scanning circuit
US2491684A (en) * 1946-11-08 1949-12-20 Philco Corp Deflecting signal generator
US2586395A (en) * 1948-10-12 1952-02-19 Westinghouse Electric Corp Circuit cathode-ray oscilloscope

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