GB639981A - Improvements in or relating to electronic oscillator-detector devices for the detection of distant objects - Google Patents

Improvements in or relating to electronic oscillator-detector devices for the detection of distant objects

Info

Publication number
GB639981A
GB639981A GB6527/42A GB652742A GB639981A GB 639981 A GB639981 A GB 639981A GB 6527/42 A GB6527/42 A GB 6527/42A GB 652742 A GB652742 A GB 652742A GB 639981 A GB639981 A GB 639981A
Authority
GB
United Kingdom
Prior art keywords
oscillation
relating
detection
cause
detector devices
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
GB6527/42A
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.)
Leland Stanford Junior University
Original Assignee
Leland Stanford Junior University
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
Priority to US218064A priority Critical patent/US2406370A/en
Application filed by Leland Stanford Junior University filed Critical Leland Stanford Junior University
Priority to GB6527/42A priority patent/GB639981A/en
Publication of GB639981A publication Critical patent/GB639981A/en
Expired legal-status Critical Current

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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/12—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the pulse-recurrence frequency is varied to provide a desired time relationship between the transmission of a pulse and the receipt of the echo of a preceding pulse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
    • H01J25/10—Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/26—Demodulation of amplitude-modulated oscillations by means of transit-time tubes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D11/00—Super-regenerative demodulator circuits
    • H03D11/02—Super-regenerative demodulator circuits for amplitude-modulated oscillations

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

639,981. Locating bodies. STEVENS, A. H. (Leland Stanford Junior University, Board of Trustees of). May 13, 1942, No. 6527. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 14, 1946.] [Class 37] [Also in Groups XXXVIII, XL (a) and XL (c)] An oscillator - detector for detecting moving objects such as burglars has four resonators 76, 77, 78, 79, arranged in cascade as a velocity-modulated electron discharge tube amplifier (see Group XL (a)). The output resonator has a radiating aperture 81, and the input resonator a receiving aperture 82, and the device is mounted in the corner of a room 94 with a screen 83 shutting off the direct path between the apertures. Normally the device is non-oscillating; if regeneration is introduced for greater sensitivity, it is insufficient by itself to cause oscillation. The advent of an object introduces a feed-back path which, owing to the high amplification, is sufficient to cause the device to break into oscillation, operating alarm 96.
GB6527/42A 1938-07-08 1942-05-13 Improvements in or relating to electronic oscillator-detector devices for the detection of distant objects Expired GB639981A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US218064A US2406370A (en) 1938-07-08 1938-07-08 Electronic oscillator-detector
GB6527/42A GB639981A (en) 1938-07-08 1942-05-13 Improvements in or relating to electronic oscillator-detector devices for the detection of distant objects

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US218064A US2406370A (en) 1938-07-08 1938-07-08 Electronic oscillator-detector
GB6527/42A GB639981A (en) 1938-07-08 1942-05-13 Improvements in or relating to electronic oscillator-detector devices for the detection of distant objects

Publications (1)

Publication Number Publication Date
GB639981A true GB639981A (en) 1950-07-12

Family

ID=26240764

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6527/42A Expired GB639981A (en) 1938-07-08 1942-05-13 Improvements in or relating to electronic oscillator-detector devices for the detection of distant objects

Country Status (2)

Country Link
US (1) US2406370A (en)
GB (1) GB639981A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2244173A (en) * 1990-03-09 1991-11-20 Eev Ltd Electron beam tube arrangements
GB2244854A (en) * 1990-03-09 1991-12-11 Eev Ltd Electron beam tube arrangements
GB2245414A (en) * 1990-03-28 1992-01-02 Eev Ltd Output cavity for electron beam tube

Families Citing this family (62)

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US2596996A (en) * 1938-07-08 1952-05-20 Olive D Ross High-frequency superregenerative apparatus
BE481452A (en) * 1939-06-15
NL80761C (en) * 1939-08-24
US2551672A (en) * 1940-10-08 1951-05-08 M O Valve Co Ltd High-frequency electrical resonator
FR972003A (en) * 1940-12-18 1951-01-24 Csf Improvements to speed modulated electron tubes
US2520182A (en) * 1940-12-24 1950-08-29 Int Standard Electric Corp Electron discharge apparatus
US2602137A (en) * 1941-10-23 1952-07-01 Sperry Corp High-frequency converter apparatus
NL65811C (en) * 1941-11-27
US2482766A (en) * 1942-07-01 1949-09-27 Sperry Corp High-frequency modulating system
US2500944A (en) * 1942-07-21 1950-03-21 Sperry Corp High-frequency tube structure
US2475652A (en) * 1942-08-03 1949-07-12 Sperry Corp High-frequency tube structure
US2466064A (en) * 1943-06-28 1949-04-05 Sperry Corp Velocity modulation apparatus
US2470802A (en) * 1943-08-10 1949-05-24 Rca Corp Microwave device
US2487619A (en) * 1943-11-16 1949-11-08 Rca Corp Electrical cavity resonator
US2444152A (en) * 1944-07-15 1948-06-29 Rca Corp Cavity resonator circuit
US2695373A (en) * 1944-11-16 1954-11-23 Rca Corp Cavity resonator high-frequency apparatus
US2472038A (en) * 1945-01-15 1949-05-31 Edward Pious Ultra high frequency metering device and method
US2533237A (en) * 1945-02-12 1950-12-12 Sperry Corp Superregenerative receiver
US2586816A (en) * 1945-03-24 1952-02-26 Sperry Corp High-frequency modulating system
NL69080C (en) * 1945-08-22
FR961000A (en) * 1945-09-22 1950-04-28
US2599933A (en) * 1945-11-05 1952-06-10 Us Navy Superregenerative microwave receiver
US2563490A (en) * 1946-01-28 1951-08-07 Cathode arrangement fob television
US2562927A (en) * 1946-12-28 1951-08-07 Sperry Corp Ultra high frequency discharge tube
US2494721A (en) * 1947-06-18 1950-01-17 Bell Telephone Labor Inc Electron velocity variation device with noise reducing resonator
US2667597A (en) * 1948-06-14 1954-01-26 Int Standard Electric Corp Velocity modulated electron discharge device
NL143190B (en) * 1948-07-15 Pfeiffer Ohler Eisen Theob FOELIE MADE LID FOR A FOOD PACKAGING HOLDER.
US2652513A (en) * 1948-12-11 1953-09-15 Bell Telephone Labor Inc Microwave amplifier
GB651386A (en) * 1948-12-14 1951-03-14 Cinema Television Ltd Improvements in or relating to cathode ray tubes
US2635206A (en) * 1949-01-06 1953-04-14 Bell Telephone Labor Inc Generation of microwaves
US2782339A (en) * 1949-01-07 1957-02-19 Rca Corp Electron beam amplifier device
US2549499A (en) * 1949-02-19 1951-04-17 Gen Electric Tunable cavity resonator
US2694159A (en) * 1949-03-22 1954-11-09 Bell Telephone Labor Inc Microwave amplifier
US2684453A (en) * 1949-03-26 1954-07-20 Rca Corp Growing wave electron discharge device
FR993102A (en) * 1949-06-02 1951-10-26 Csf Traveling wave tube with two electron beams propagating in the opposite direction
US2730647A (en) * 1949-06-22 1956-01-10 Bell Telephone Labor Inc Microwave amplifier
US2585582A (en) * 1949-07-07 1952-02-12 Bell Telephone Labor Inc Electron gun
US2630547A (en) * 1949-07-27 1953-03-03 Rca Corp Plural-beam growing-wave tube
US2719936A (en) * 1949-09-14 1955-10-04 Rca Corp Electron tubes of the traveling wave type
US2824997A (en) * 1949-10-14 1958-02-25 Andrew V Haeff Electron wave tube
US2727230A (en) * 1950-09-20 1955-12-13 Westinghouse Electric Corp Electronically tunable cavity resonator
BE507255A (en) * 1950-11-22
US2652512A (en) * 1950-12-22 1953-09-15 Bell Telephone Labor Inc Electron gun
US2757314A (en) * 1951-01-19 1956-07-31 Westinghouse Electric Corp Resnatron
US2702349A (en) * 1951-02-15 1955-02-15 Gen Electric High-frequency electric discharge device and circuits associated therewith
US2806172A (en) * 1951-03-19 1957-09-10 Rca Corp High frequency coupling and modulating apparatus
BE511689A (en) * 1951-05-29
US2800606A (en) * 1951-10-26 1957-07-23 Univ Leland Stanford Junior Space charge wave amplifiers
FR1071367A (en) * 1952-02-25 1954-08-31 Telefunken Gmbh Electric discharge tube for very short waves according to the traveling wave principle
US2800603A (en) * 1952-04-08 1957-07-23 Itt Traveling wave electron discharge devices
NL189770B (en) * 1953-08-15 Celanese Corp PROCESS FOR THE MANUFACTURE OF INDUSTRIAL POLYESTER FILAMENTS.
US2849649A (en) * 1953-12-18 1958-08-26 Raytheon Mfg Co Electron discharge devices
US2786979A (en) * 1954-03-09 1957-03-26 Goneral Prec Lab Inc Microwave electronic switch
NL222966A (en) * 1954-03-25
US2902615A (en) * 1954-04-01 1959-09-01 Zenith Radio Corp Beam internation devices
US2913619A (en) * 1954-04-29 1959-11-17 Applied Radiation Corp Particle accelerators
US3011087A (en) * 1955-02-08 1961-11-28 Applied Radiation Corp Device and method for producing electron beams
US2892957A (en) * 1957-05-27 1959-06-30 William E Waters Microwave detector
US3080523A (en) * 1958-04-07 1963-03-05 Westinghouse Electric Corp Electronically-controlled-scanning directional antenna apparatus utilizing velocity modulation of a traveling wave tube
DE1298641B (en) * 1961-02-10 1969-07-03 Telefunken Patent Microwave tubes for speed modulation
FR1499442A (en) * 1966-09-16 1967-10-27 Sfim Improvements made to Doppler effect radar devices
GB1223845A (en) * 1967-06-19 1971-03-03 Mini Of Technology Improvements in or relating to radio transmitter antennae

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2244173A (en) * 1990-03-09 1991-11-20 Eev Ltd Electron beam tube arrangements
GB2244854A (en) * 1990-03-09 1991-12-11 Eev Ltd Electron beam tube arrangements
US5239272A (en) * 1990-03-09 1993-08-24 Eev Limited Electron beam tube arrangements having primary and secondary output cavities
GB2244854B (en) * 1990-03-09 1994-05-04 Eev Ltd Electron beam tube arrangements
GB2244173B (en) * 1990-03-09 1994-06-01 Eev Ltd Electron beam tube arrangements
GB2245414A (en) * 1990-03-28 1992-01-02 Eev Ltd Output cavity for electron beam tube
GB2245414B (en) * 1990-03-28 1994-03-23 Eev Ltd Output cavity for electron beam tube

Also Published As

Publication number Publication date
US2406370A (en) 1946-08-27

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