JPS5557165A - Electronic rotary echo sounder - Google Patents

Electronic rotary echo sounder

Info

Publication number
JPS5557165A
JPS5557165A JP12965978A JP12965978A JPS5557165A JP S5557165 A JPS5557165 A JP S5557165A JP 12965978 A JP12965978 A JP 12965978A JP 12965978 A JP12965978 A JP 12965978A JP S5557165 A JPS5557165 A JP S5557165A
Authority
JP
Japan
Prior art keywords
circuit
generator
time
output
pulse
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
JP12965978A
Other languages
Japanese (ja)
Inventor
Hirotaka Murahashi
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 JP12965978A priority Critical patent/JPS5557165A/en
Publication of JPS5557165A publication Critical patent/JPS5557165A/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
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/64—Luminous indications

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (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 ensure the display for the water, wind and school of fish by combining the electronic circuit producing the time difference and plural units of simple light emitting devices, thus realizing a long life time of the device as well as increasing the luminance. CONSTITUTION:Pulse A generated from reference time generator 1 is supplied to time difference generator circuit 2. Circuit 2 has the output terminals of five circuits, and thus the output signals shift to C from B and then to D from C with supply of every unit of pulse A. After reaching final F, the output signal returns to B to repeat this action. The time from B to F can be varied easily by changing the cycle of generator 1. Then the waveform shaping is given to measuring ultrasonic wave G through amplifier 5 to obtain voltage H. This voltage H plus the output signals from C to F supplied from circuit 2 are made to pass AND circuit 3, and as a result the output of circuit 3 emerges only to the circuit of the period during which the ultrasonic wave exists. Thus the light emitting device 4 connected to circuit 3 is actuated.
JP12965978A 1978-10-20 1978-10-20 Electronic rotary echo sounder Pending JPS5557165A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12965978A JPS5557165A (en) 1978-10-20 1978-10-20 Electronic rotary echo sounder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12965978A JPS5557165A (en) 1978-10-20 1978-10-20 Electronic rotary echo sounder

Publications (1)

Publication Number Publication Date
JPS5557165A true JPS5557165A (en) 1980-04-26

Family

ID=15014965

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12965978A Pending JPS5557165A (en) 1978-10-20 1978-10-20 Electronic rotary echo sounder

Country Status (1)

Country Link
JP (1) JPS5557165A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61115987U (en) * 1984-12-31 1986-07-22
JPS61218967A (en) * 1985-03-25 1986-09-29 Matsushita Electric Works Ltd Ultrasonic wave azimuth sensor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61115987U (en) * 1984-12-31 1986-07-22
JPS61218967A (en) * 1985-03-25 1986-09-29 Matsushita Electric Works Ltd Ultrasonic wave azimuth sensor

Similar Documents

Publication Publication Date Title
JPS5142888B1 (en)
JPS5557165A (en) Electronic rotary echo sounder
GB1051421A (en) Method and apparatus for observing vocal cord wave
JPS5497458A (en) Electronic metronome
JPS5217758A (en) Pulse generator circuit
JPS5714770A (en) Sounding equipment
JPS5587064A (en) Acoustic unit in fish finder
JPS5483477A (en) Electronic time striking circuit
JPS5394962A (en) Pulse receiving circuit
JPS5626282A (en) Alarm clock
SU984016A1 (en) Pulse shaper
JPS5338360A (en) Electronic watch
JPS51117898A (en) Alarm indicator
JPS5512929A (en) Charging voltage notifying device for electronic flashing equipment
JPS5684028A (en) Pulse generating circuit
JPS5348622A (en) Scanning pulse generator circuit for matrixtype liquid crystal display unit
JPS5423036A (en) Manufacture of high tensile fine mesh
JPS53111239A (en) Electronic digital equipment
JPS54549A (en) Waveform generator
JPS5540419A (en) Flash device
JPS52126149A (en) Analog signal delay circuit
JPS52154336A (en) Pulse generator circuit
JPS5772420A (en) Noise signal generating circuit
JPS5287349A (en) Indication reporting equipment
ES1048384U (en) Set of signal lights for bicycles, very low consumption electronic energy saver. (Machine-translation by Google Translate, not legally binding)