GB537118A - Improvements in radio self-indicating bearing finders - Google Patents

Improvements in radio self-indicating bearing finders

Info

Publication number
GB537118A
GB537118A GB31640/39A GB3164039A GB537118A GB 537118 A GB537118 A GB 537118A GB 31640/39 A GB31640/39 A GB 31640/39A GB 3164039 A GB3164039 A GB 3164039A GB 537118 A GB537118 A GB 537118A
Authority
GB
United Kingdom
Prior art keywords
receiver
switch
frame
output
indicator
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
GB31640/39A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB537118A publication Critical patent/GB537118A/en
Expired legal-status Critical Current

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
    • G01S1/02Beacons 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 radio waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

537,118. Directive wireless systems. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Dec. 6, 1939, No. 31640. Convention date, Dec. 6, 1938. [Class 40 (v)] Signals from two crossed frame aerials R1, R2, Fig. 7, are combined with those from a non- directional aerial H through a reversing switch U1 so that the two frames are coupled successively and with alternating polarity to the receiver E, whilst the output from the receiver is applied through a switch U2, operating synchronously with the switch U1, to two indicator coils A1, A2, also set at right-angles to each other, so that, when one of the two aerials R1 or R2 is connected to the receiver input, the corresponding indicator coil A1, or A2 is connected to the output with like polarity. Fig. 8 shows the working sequence of the input and output switches U1, U2; the polarity of the frame R1 is first kept in step with that of the winding A1, and similarly that of the frame R2 and winding A2, at the next movement of the switch and so on. In Fig. 10 the input switch U1 comprises four salient magnetic poles, two of which c, d are coupled to the frame aerials .and two e, f to the receiver E. The rotating core g is partly screened as shown, so that first the flux in pole c induced by the aerial R2 is transferred through the pole f to the receiver E, and next the flux induced by the aerial R1 is similarly coupled to the receiver through the poles e and f. The output switch U2 consists of a brush rotating over commutator segments connected to the two indicator coils A1, A2. The coils A1, A2 may operate a pair of astatic needles located either inside or outside a magnetic core (Fig. 13 to 16 not shown). The direction-finder described may be used in combination with a " homing " indicator, the windings of the two instruments being connected in opposition ; this will indicate any deviation from the course with great accuracy and sensitivity.
GB31640/39A 1938-12-06 1939-12-06 Improvements in radio self-indicating bearing finders Expired GB537118A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE537118X 1938-12-06

Publications (1)

Publication Number Publication Date
GB537118A true GB537118A (en) 1941-06-10

Family

ID=6557586

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31640/39A Expired GB537118A (en) 1938-12-06 1939-12-06 Improvements in radio self-indicating bearing finders

Country Status (2)

Country Link
FR (1) FR869251A (en)
GB (1) GB537118A (en)

Also Published As

Publication number Publication date
FR869251A (en) 1942-01-28

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