JPS5673314A - Direction finder - Google Patents

Direction finder

Info

Publication number
JPS5673314A
JPS5673314A JP15106379A JP15106379A JPS5673314A JP S5673314 A JPS5673314 A JP S5673314A JP 15106379 A JP15106379 A JP 15106379A JP 15106379 A JP15106379 A JP 15106379A JP S5673314 A JPS5673314 A JP S5673314A
Authority
JP
Japan
Prior art keywords
phase
magnetic body
coil
terrestrial magnetism
constitution
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.)
Pending
Application number
JP15106379A
Other languages
Japanese (ja)
Inventor
Eizo Mori
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP15106379A priority Critical patent/JPS5673314A/en
Publication of JPS5673314A publication Critical patent/JPS5673314A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To improve precision by providing part of a magnetic body piercing through a fixed coil with a combined function of generating a synchronous signal and comparing an electromotive force and the phase of a synchronous signal.
CONSTITUTION: A magnetic body 2 is turned axially, piercing through a coil 4. This magnetic body 2 has a wing part 15, 16 and has the passage of terrestrial magnetism converted from horizontal to vertical component and periodically changed in magnitude and direction. Consequently, in the coil 4, an AC electromotive force (a) of the same period as the rotation of an axis 1 generates. Next, two photoelectric switches 9 are provided being deviated 90° from each other centering around a rotary axis 1. On one of the rotary axis 1, a semicircular optical shutter 7 is fixed. Under this arrangement, rectangular waves (b), (c) having a phase deviated 90° are output. Thanks to this constitution, (a) of signals, (a), (b), (c) has a change in the phase on account of the direction of a horizontal component of terrestrial magnetism, although the (b) and (c) have nothing to do with the direction of terrestrial magnetism. Thus it is possible to enhance precision by comparing the phase of (a) with (b), (c).
COPYRIGHT: (C)1981,JPO&Japio
JP15106379A 1979-11-20 1979-11-20 Direction finder Pending JPS5673314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15106379A JPS5673314A (en) 1979-11-20 1979-11-20 Direction finder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15106379A JPS5673314A (en) 1979-11-20 1979-11-20 Direction finder

Publications (1)

Publication Number Publication Date
JPS5673314A true JPS5673314A (en) 1981-06-18

Family

ID=15510484

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15106379A Pending JPS5673314A (en) 1979-11-20 1979-11-20 Direction finder

Country Status (1)

Country Link
JP (1) JPS5673314A (en)

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