JPS5635009A - Azimuth meter system - Google Patents

Azimuth meter system

Info

Publication number
JPS5635009A
JPS5635009A JP11145579A JP11145579A JPS5635009A JP S5635009 A JPS5635009 A JP S5635009A JP 11145579 A JP11145579 A JP 11145579A JP 11145579 A JP11145579 A JP 11145579A JP S5635009 A JPS5635009 A JP S5635009A
Authority
JP
Japan
Prior art keywords
earth magnetism
phase difference
synchronizing signal
rectangular wave
dff25
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.)
Granted
Application number
JP11145579A
Other languages
Japanese (ja)
Other versions
JPS6330562B2 (en
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 JP11145579A priority Critical patent/JPS5635009A/en
Publication of JPS5635009A publication Critical patent/JPS5635009A/en
Publication of JPS6330562B2 publication Critical patent/JPS6330562B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Landscapes

  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

PURPOSE: To enable to know the direction even during running, by the digital display of the phase difference between the AC electromotive force obtained from the coil rotated around the vertical rotating shaft in the magnetic field of earth magnetism and the synchronizing signal of the same cycle, as the angle between the reference direction and the earth magnetism.
CONSTITUTION: The coil 2 is rotated around the vertical shaft in the magnetic field of earth magnetism to generate the AC electromotive force with the horizontal component of the earth magnetism, it is converted into the 1st rectangular wave of 1/2 cycle and 1 of duty ratio and input to DFF25. On the other hand, from the synchronizing signal generator having the shutter 7 and the photocoupler 8, the synchronizing signal with the same cycle obtained from the same revolution and shifted by θ in the phase difference, is input to DFF25 and the 2nd rectangular wave is obtained from the Q output terminal. The 1st rectangular wave is fed to the integration type A/D converter 30 and the AND output of the 1st and 2nd rectangular waves is fed, respectively via the low pass filter (LPF)29 and LPF28 as the reference and converted voltage, allowing to digitally display 31 the phase difference θ degrees as the angle between the reference direction and the earth magnetism, in 360° full-scale.
COPYRIGHT: (C)1981,JPO&Japio
JP11145579A 1979-08-30 1979-08-30 Azimuth meter system Granted JPS5635009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11145579A JPS5635009A (en) 1979-08-30 1979-08-30 Azimuth meter system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11145579A JPS5635009A (en) 1979-08-30 1979-08-30 Azimuth meter system

Publications (2)

Publication Number Publication Date
JPS5635009A true JPS5635009A (en) 1981-04-07
JPS6330562B2 JPS6330562B2 (en) 1988-06-20

Family

ID=14561653

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11145579A Granted JPS5635009A (en) 1979-08-30 1979-08-30 Azimuth meter system

Country Status (1)

Country Link
JP (1) JPS5635009A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005115219A1 (en) * 2004-05-26 2005-12-08 Olympus Corporation Position information detecting device and position information detecting system
JP2006061624A (en) * 2004-08-30 2006-03-09 Olympus Corp Position detector and system to guide it into subject body
WO2006025400A1 (en) * 2004-08-30 2006-03-09 Olympus Corporation Position sensor and introduction-into-subject system
JP2006075536A (en) * 2004-09-13 2006-03-23 Olympus Corp Intra-patient introduction system
US8050738B2 (en) 2004-08-30 2011-11-01 Olympus Corporation Position detecting apparatus using the magnetic field direction of the earth's magnetic field

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005115219A1 (en) * 2004-05-26 2005-12-08 Olympus Corporation Position information detecting device and position information detecting system
JP2005334251A (en) * 2004-05-26 2005-12-08 Olympus Corp Positional relation detector and positional relation detecting system
JP2006061624A (en) * 2004-08-30 2006-03-09 Olympus Corp Position detector and system to guide it into subject body
WO2006025400A1 (en) * 2004-08-30 2006-03-09 Olympus Corporation Position sensor and introduction-into-subject system
JP4554301B2 (en) * 2004-08-30 2010-09-29 オリンパス株式会社 Position detection apparatus and in-subject introduction system
US8050738B2 (en) 2004-08-30 2011-11-01 Olympus Corporation Position detecting apparatus using the magnetic field direction of the earth's magnetic field
US8195277B2 (en) 2004-08-30 2012-06-05 Olympus Corporation Prospective position detecting magnetic field control based on a possible existence range of an object
JP2006075536A (en) * 2004-09-13 2006-03-23 Olympus Corp Intra-patient introduction system
JP4505292B2 (en) * 2004-09-13 2010-07-21 オリンパス株式会社 Intra-subject introduction system

Also Published As

Publication number Publication date
JPS6330562B2 (en) 1988-06-20

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