GB798953A - Improvements in radio telescopes - Google Patents

Improvements in radio telescopes

Info

Publication number
GB798953A
GB798953A GB2924755A GB2924755A GB798953A GB 798953 A GB798953 A GB 798953A GB 2924755 A GB2924755 A GB 2924755A GB 2924755 A GB2924755 A GB 2924755A GB 798953 A GB798953 A GB 798953A
Authority
GB
United Kingdom
Prior art keywords
reflector
frame
spiral
members
tubes
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
GB2924755A
Inventor
Barnes Neville Wallis
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.)
Vickers Armstrongs Aircraft Ltd
Original Assignee
Vickers Armstrongs Aircraft Ltd
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 Vickers Armstrongs Aircraft Ltd filed Critical Vickers Armstrongs Aircraft Ltd
Priority to GB2924755A priority Critical patent/GB798953A/en
Publication of GB798953A publication Critical patent/GB798953A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Telescopes (AREA)

Abstract

798,953. Radio reflectors. VICKERS-ARMSTRONGS (AIRCRAFT), Ltd. Jan. 11, 1957 [Oct. 13, 1955], No. 29247/55. Class 40 (7). A radio reflector of paraboloidal dish form, for use in a radio telescope, comprises two intersecting sets 14 and 15 of opposite-handed equiangular spiral frames extending between circular frames 12 and 13 close to the centre and at the periphery of the reflector. The frame and ring structure carries supports for, or itself supports, a wire mesh or metal sheet reflector surface 16. Each spiral member 14 or 15 may consist of an inner and outer tube the distance between the two decreasing towards the frame 13. The tubes may be of light alloy and because the spirals are equiangular a standard die-cast X jointing member (Fig. 4, not shown) to which the tubes are screwed may be used at each joint. Although the tube external diameter is the same throughout the structure in order to make use of these standard jointing members the gauge of the tubes may decrease towards the periphery of the structure. Certain of the jointing members may be provided with additional coupling arms for the attachment of bracing members such as that shown at 20. The spacing between the spiral frames in the outer regions of the structure may be filled in with supplementary spiral members 17 extending only part of the way to the centre of the structure. In one mounting arrangement the circular frame 12 forms the base of a frustoconical hub frame 10 by which the structure is rotatably mounted on support axle framework 21, 22. This framework is extended as aerial supporting mast 24 and is capable of movement about axis 23 for elevation adjustment. A counter-weight 25 (also seen in Fig. 3, not shown) balances the reflector. Means are provided for continuously rotating the dish on axle 21 as the gyroscopic effect steadies the structure against wind gusts and temperature variations. A simpler mounting in which it is not possible to rotate the reflector is described with reference to Fig. 5 (not shown). Specification 731,665, [Group X], is referred to.
GB2924755A 1955-10-13 1955-10-13 Improvements in radio telescopes Expired GB798953A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2924755A GB798953A (en) 1955-10-13 1955-10-13 Improvements in radio telescopes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2924755A GB798953A (en) 1955-10-13 1955-10-13 Improvements in radio telescopes

Publications (1)

Publication Number Publication Date
GB798953A true GB798953A (en) 1958-07-30

Family

ID=10288492

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2924755A Expired GB798953A (en) 1955-10-13 1955-10-13 Improvements in radio telescopes

Country Status (1)

Country Link
GB (1) GB798953A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4456852A (en) * 1982-01-27 1984-06-26 Rca Corporation Mesh structure for a photomultiplier tube
CN102569986A (en) * 2012-02-06 2012-07-11 张志良 Radio telescope support

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4456852A (en) * 1982-01-27 1984-06-26 Rca Corporation Mesh structure for a photomultiplier tube
CN102569986A (en) * 2012-02-06 2012-07-11 张志良 Radio telescope support
CN102569986B (en) * 2012-02-06 2014-09-03 张志良 Radio telescope support

Similar Documents

Publication Publication Date Title
US8648286B2 (en) Shadow band pyranometer
US20090183730A1 (en) Spherical Heliostat
CN112436292B (en) Reflecting surface antenna based on three-telescopic-rod driving and quasi-geodesic grid structure
US3751134A (en) Tracking mounts for celestial ray detecting devices
RU2514134C1 (en) Antenna system with partial metal coating of radiotransparent protective cover
GB798953A (en) Improvements in radio telescopes
CN210195406U (en) Electric power transmission device capable of adjusting supporting direction and angle
De Vaucouleurs Southern Galaxies. V. Isophotometry of the Large Barred Spiral NGC 4945.
US4103429A (en) Sun and star time dial
CN207885313U (en) A kind of virescence maintenance protecting trees from wind frigid-proof device
US3392398A (en) Radio telescope
JPS5772402A (en) Parabolic antenna device
CN212676462U (en) Portable communication antenna for meteorological satellite DCP
US3438045A (en) Dish reflector with adjustable subreflector
JPS56114710A (en) Air route measurement and observing theodolite
CN207990434U (en) Lighting lamp bracket
CN214540033U (en) Target position range finding equipment for shooting aiming system
CN206040971U (en) A every single move orientation adjustment mechanism for portable communication antenna
US3090124A (en) Heliodon
SE325848B (en)
CN213660597U (en) Wireless supporting device for communication iron tower
CN108827259A (en) Safe surveying instrument
CN108839810A (en) A kind of mapping unmanned flight's machine
CN209730146U (en) A kind of integrated form Radio Telescope Antenna for sun imaging observation
CN113037183A (en) Adjustable photovoltaic support