JPS55145220A - Position control ling method for sludge suction hole - Google Patents

Position control ling method for sludge suction hole

Info

Publication number
JPS55145220A
JPS55145220A JP5222579A JP5222579A JPS55145220A JP S55145220 A JPS55145220 A JP S55145220A JP 5222579 A JP5222579 A JP 5222579A JP 5222579 A JP5222579 A JP 5222579A JP S55145220 A JPS55145220 A JP S55145220A
Authority
JP
Japan
Prior art keywords
sludge
suction hole
ultrasonic
signals
wave
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
JP5222579A
Other languages
Japanese (ja)
Other versions
JPS6411777B2 (en
Inventor
Masakatsu Ogaki
Original Assignee
Oki Electric Ind 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 Oki Electric Ind Co Ltd filed Critical Oki Electric Ind Co Ltd
Priority to JP5222579A priority Critical patent/JPS6411777B2/ja
Publication of JPS55145220A publication Critical patent/JPS55145220A/en
Publication of JPS6411777B2 publication Critical patent/JPS6411777B2/ja
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To arrange the suction hole of sludge in the most suitable position according to distributional conditions and properties of the sludge by a method wherein the position of a suction hole of the sludge is controlled on the basis of the output level of an ultrasonic detector.
CONSTITUTION: The suction hole 1 of sludge is arranged so that an ultrasonic detector 51, 52,...5n which is equipped on one external side through a supporting frame may come in contact with the sludge layer and the seawater before sucked. An ultrasonic detector 5m is composed of a transmitter 3m and a receiver 4m of ultrasonic wave which are arranged at specified intervals. If signals with a specified frequency appear in an oscillator 7, they are amplified by an amplifier 8 and transmitted to a wave transmitter 3n through a change-over switch 9 to emit ultrasonic wave signals. The ultrasonic signals are received by a wave receiver 4n and converted into electric signals. They are transmitted to a processor 11, output levels of received waves are measured and these measured values are sent to a record indicator 12 and a control signal generator 13.
COPYRIGHT: (C)1980,JPO&Japio
JP5222579A 1979-04-27 1979-04-27 Expired JPS6411777B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5222579A JPS6411777B2 (en) 1979-04-27 1979-04-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5222579A JPS6411777B2 (en) 1979-04-27 1979-04-27

Publications (2)

Publication Number Publication Date
JPS55145220A true JPS55145220A (en) 1980-11-12
JPS6411777B2 JPS6411777B2 (en) 1989-02-27

Family

ID=12908793

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5222579A Expired JPS6411777B2 (en) 1979-04-27 1979-04-27

Country Status (1)

Country Link
JP (1) JPS6411777B2 (en)

Also Published As

Publication number Publication date
JPS6411777B2 (en) 1989-02-27

Similar Documents

Publication Publication Date Title
JPH01196589A (en) Noncontact type distance measuring device
JPH04250356A (en) Ultrasonic wave transmitter/receiver
JPS55145220A (en) Position control ling method for sludge suction hole
JPH02159591A (en) Displaying apparatus of seabed configuration
JPH03274420A (en) Wireless water level sensor instrument
JPH02262082A (en) Fish-finder
JPS54129914A (en) Tracking receiver for scpc antenna
JPS59218973A (en) On-vehicle obstacle detector
JPS61281964A (en) Soil hardness detector of paddy field mobile agricultral machine
JPH036964A (en) Underwater communication equipment
JPS5821178A (en) Ultrasonic detector
JPS5574457A (en) Concentration measuring device
JPH04350588A (en) Ultrasonic detector
JPS62102179A (en) Directive receiving beam forming device in underwater detector
JPH03282288A (en) Ultrasonic object confirming apparatus
JPH01303600A (en) Method and device for tide level transmission using numeric data
JPS6298281A (en) Detecting device for moving body
JPH02226087A (en) Transmitter/receiver
JPS63284483A (en) Distance measuring instrument
JPH01262491A (en) Active sonar equipment
JPS63180882A (en) Length measuring apparatus for underwater moving object
JPS58187805A (en) Wireless tide level telemeter
JPS5468273A (en) Mimic target
JPS52149145A (en) Ultrasonic sensor
JPS60222783A (en) Sound wave detector