JPS51129260A - Shot ball direction observing method - Google Patents

Shot ball direction observing method

Info

Publication number
JPS51129260A
JPS51129260A JP50053494A JP5349475A JPS51129260A JP S51129260 A JPS51129260 A JP S51129260A JP 50053494 A JP50053494 A JP 50053494A JP 5349475 A JP5349475 A JP 5349475A JP S51129260 A JPS51129260 A JP S51129260A
Authority
JP
Japan
Prior art keywords
shot ball
ball direction
observing method
direction observing
shot
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
JP50053494A
Other languages
Japanese (ja)
Other versions
JPS5839306B2 (en
Inventor
Hiyoshi Tatsuno
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP50053494A priority Critical patent/JPS5839306B2/en
Publication of JPS51129260A publication Critical patent/JPS51129260A/en
Publication of JPS5839306B2 publication Critical patent/JPS5839306B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
    • G01S3/802—Systems for determining direction or deviation from predetermined direction

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To observe the direction of a shot ball by arranging a few number of sound detectors around a target.
JP50053494A 1975-05-02 1975-05-02 Method for calculating ball conversion distance and flight direction Expired JPS5839306B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50053494A JPS5839306B2 (en) 1975-05-02 1975-05-02 Method for calculating ball conversion distance and flight direction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50053494A JPS5839306B2 (en) 1975-05-02 1975-05-02 Method for calculating ball conversion distance and flight direction

Publications (2)

Publication Number Publication Date
JPS51129260A true JPS51129260A (en) 1976-11-10
JPS5839306B2 JPS5839306B2 (en) 1983-08-29

Family

ID=12944373

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50053494A Expired JPS5839306B2 (en) 1975-05-02 1975-05-02 Method for calculating ball conversion distance and flight direction

Country Status (1)

Country Link
JP (1) JPS5839306B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6233566A (en) * 1985-08-08 1987-02-13 Dengen Autom Kk Small-sized air cleaner

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4843365A (en) * 1971-10-01 1973-06-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4843365A (en) * 1971-10-01 1973-06-22

Also Published As

Publication number Publication date
JPS5839306B2 (en) 1983-08-29

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