NL184706B - Fotoelektrische toerentalmeetinrichting. - Google Patents

Fotoelektrische toerentalmeetinrichting.

Info

Publication number
NL184706B
NL184706B NLAANVRAGE7811702,A NL184706DA NL184706B NL 184706 B NL184706 B NL 184706B NL 184706D A NL184706D A NL 184706DA NL 184706 B NL184706 B NL 184706B
Authority
NL
Netherlands
Prior art keywords
photo
speed measurement
electric speed
electric
measurement
Prior art date
Application number
NLAANVRAGE7811702,A
Other languages
English (en)
Original Assignee
Uranit Gmbh
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.)
Publication of NL184706B publication Critical patent/NL184706B/nl

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H01Q21/0037—Particular feeding systems linear waveguide fed arrays
    • H01Q21/0043—Slotted waveguides
    • H01Q21/0062—Slotted waveguides the slots being disposed around the feeding waveguide
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H01Q13/12—Longitudinally slotted cylinder antennas; Equivalent structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
    • H01Q21/205—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path providing an omnidirectional coverage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/32—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by mechanical means
NLAANVRAGE7811702,A 1953-01-30 Fotoelektrische toerentalmeetinrichting. NL184706B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US334142A US2744249A (en) 1953-01-30 1953-01-30 Antenna feed systems

Publications (1)

Publication Number Publication Date
NL184706B true NL184706B (nl)

Family

ID=23305775

Family Applications (2)

Application Number Title Priority Date Filing Date
NL91730D NL91730C (nl) 1953-01-30
NLAANVRAGE7811702,A NL184706B (nl) 1953-01-30 Fotoelektrische toerentalmeetinrichting.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL91730D NL91730C (nl) 1953-01-30

Country Status (7)

Country Link
US (1) US2744249A (nl)
BE (1) BE526052A (nl)
CH (1) CH330332A (nl)
DE (1) DE1009678B (nl)
FR (1) FR1094683A (nl)
GB (1) GB739618A (nl)
NL (2) NL184706B (nl)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947988A (en) * 1955-03-29 1960-08-02 Univ Ohio State Res Found Traveling wave antenna
US2927318A (en) * 1956-12-03 1960-03-01 Gen Dynamics Corp Radar system
US2973515A (en) * 1957-04-05 1961-02-28 Alford Andrew Omnidirectional vertically polarized antenna
US2971193A (en) * 1957-06-21 1961-02-07 Rca Corp Multiple slot antenna having radiating termination
US3321762A (en) * 1964-05-27 1967-05-23 Zucconi Bruno Slot antenna array useful with top mounted beacon light and decoupled internal powerline
US3638224A (en) * 1970-04-24 1972-01-25 Nasa Stacked array of omnidirectional antennas
US4297706A (en) * 1980-03-17 1981-10-27 Rca Corporation Circularly polarized slotted pylon antenna
FR2576692B1 (fr) * 1985-01-25 1987-03-06 Thomson Csf Systeme de radio-navigation du type vor doppler comportant un empilement central d'elements rayonnants
US4631544A (en) * 1985-04-10 1986-12-23 Tideland Signal Corporation S-band coaxial slot array antenna
US5809429A (en) * 1995-09-22 1998-09-15 Andrew Corporation Radiating coaxial cable and radio communication system using same
US6480163B1 (en) 1999-12-16 2002-11-12 Andrew Corporation Radiating coaxial cable having helically diposed slots and radio communication system using same
US6320555B1 (en) * 2000-12-14 2001-11-20 General Signal Corporation Internally branch fed slotted coaxial antenna
US8253636B2 (en) 2005-11-28 2012-08-28 Bae Systems Plc Improvements relating to antenna arrays
US20100053024A1 (en) * 2006-11-14 2010-03-04 Andersson Mats H Antenna with an improved radiation pattern
US10911076B2 (en) * 2016-12-28 2021-02-02 Sony Semiconductor Solutions Corporation Antenna device, communication device, and communication method
CN112054293B (zh) * 2020-10-21 2023-03-24 北京字节跳动网络技术有限公司 电子设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2196187A (en) * 1937-01-19 1940-04-09 William R Blair Directive antenna array
US2464276A (en) * 1943-08-03 1949-03-15 Sperry Corp Radiant energy directivity pattern scanner
US2502155A (en) * 1948-03-02 1950-03-28 Charles L Jeffers Low-angle radiation antenna
US2658143A (en) * 1950-03-16 1953-11-03 Rca Corp Ultrahigh-frequency broadcast antenna system

Also Published As

Publication number Publication date
BE526052A (nl)
FR1094683A (nl) 1955-05-23
CH330332A (de) 1958-05-31
DE1009678B (de) 1957-06-06
US2744249A (en) 1956-05-01
GB739618A (en) 1955-11-02
NL91730C (nl)

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