JPS56140271A - Radar device - Google Patents

Radar device

Info

Publication number
JPS56140271A
JPS56140271A JP4376380A JP4376380A JPS56140271A JP S56140271 A JPS56140271 A JP S56140271A JP 4376380 A JP4376380 A JP 4376380A JP 4376380 A JP4376380 A JP 4376380A JP S56140271 A JPS56140271 A JP S56140271A
Authority
JP
Japan
Prior art keywords
motor
antenna
pulse
circuit
revolution
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
JP4376380A
Other languages
Japanese (ja)
Inventor
Hidetoshi Tanigaki
Takeshi Iketani
Tadayoshi Touhoku
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.)
Furuno Electric Co Ltd
Original Assignee
Furuno Electric 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 Furuno Electric Co Ltd filed Critical Furuno Electric Co Ltd
Priority to JP4376380A priority Critical patent/JPS56140271A/en
Publication of JPS56140271A publication Critical patent/JPS56140271A/en
Pending 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To increase the life of a motor by using the motor at a lower number of revolution than that of the rating to perform a variable revolution easily and to decrease the motor noise. CONSTITUTION:A DC motor 1 for a high torque is rotated at a lower torque rotation so that it may rotate an antenna 2 at 15-30r.p.m. and is connected with the antenna 2 directly or through one step reduction gear. A rotary pulse generating circuit 3 generates a pulse at every rotation of the antenna 2, and the output thereof is fed to a driving circuit 8 of a pulse motor 7 and a frequency-voltage (F-V) conversion circuit 9 through a rotary pulse shaping circuit 4. The output of the F-V conversion circuit 9 is fedback to the motor 1 through a servo amplifier 10 so as to control the revolution speed of the motor at constant.
JP4376380A 1980-04-02 1980-04-02 Radar device Pending JPS56140271A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4376380A JPS56140271A (en) 1980-04-02 1980-04-02 Radar device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4376380A JPS56140271A (en) 1980-04-02 1980-04-02 Radar device

Publications (1)

Publication Number Publication Date
JPS56140271A true JPS56140271A (en) 1981-11-02

Family

ID=12672788

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4376380A Pending JPS56140271A (en) 1980-04-02 1980-04-02 Radar device

Country Status (1)

Country Link
JP (1) JPS56140271A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0283482U (en) * 1989-11-01 1990-06-28

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599039A (en) * 1968-08-08 1971-08-10 Tokyo Keiki Seizosho Co Ltd Phase-synchronized rotating system
JPS5285687A (en) * 1976-01-09 1977-07-16 Nippon Denso Co Ltd Digital calculation control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599039A (en) * 1968-08-08 1971-08-10 Tokyo Keiki Seizosho Co Ltd Phase-synchronized rotating system
JPS5285687A (en) * 1976-01-09 1977-07-16 Nippon Denso Co Ltd Digital calculation control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0283482U (en) * 1989-11-01 1990-06-28

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