FR1482238A - Circuit de contrôle automatique du gain pour sondeurs ultrasonores - Google Patents

Circuit de contrôle automatique du gain pour sondeurs ultrasonores

Info

Publication number
FR1482238A
FR1482238A FR58762A FR58762A FR1482238A FR 1482238 A FR1482238 A FR 1482238A FR 58762 A FR58762 A FR 58762A FR 58762 A FR58762 A FR 58762A FR 1482238 A FR1482238 A FR 1482238A
Authority
FR
France
Prior art keywords
control circuit
gain control
automatic gain
sounders
ultrasonic
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.)
Expired
Application number
FR58762A
Other languages
English (en)
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.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
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
Priority claimed from GB1735265A external-priority patent/GB1147191A/en
Priority claimed from GB1429466A external-priority patent/GB1147192A/en
Application filed by Smiths Group PLC filed Critical Smiths Group PLC
Priority to FR58762A priority Critical patent/FR1482238A/fr
Application granted granted Critical
Publication of FR1482238A publication Critical patent/FR1482238A/fr
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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S15/14—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves wherein a voltage or current pulse is initiated and terminated in accordance respectively with the pulse transmission and echo reception
    • 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S15/18—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves wherein range gates are used
    • 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
    • G01S7/523—Details of pulse systems
    • G01S7/526—Receivers
    • G01S7/529—Gain of receiver varied automatically during pulse-recurrence period
    • 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
    • G01S7/56—Display arrangements
    • G01S7/60—Display arrangements for providing a permanent recording

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
FR58762A 1965-04-23 1966-04-22 Circuit de contrôle automatique du gain pour sondeurs ultrasonores Expired FR1482238A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR58762A FR1482238A (fr) 1965-04-23 1966-04-22 Circuit de contrôle automatique du gain pour sondeurs ultrasonores

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1735265A GB1147191A (en) 1965-04-23 1965-04-23 Depth-measuring echo sounder
GB1429466A GB1147192A (en) 1966-03-31 1966-03-31 Echo-sounding apparatus
FR58762A FR1482238A (fr) 1965-04-23 1966-04-22 Circuit de contrôle automatique du gain pour sondeurs ultrasonores

Publications (1)

Publication Number Publication Date
FR1482238A true FR1482238A (fr) 1967-05-26

Family

ID=27243148

Family Applications (1)

Application Number Title Priority Date Filing Date
FR58762A Expired FR1482238A (fr) 1965-04-23 1966-04-22 Circuit de contrôle automatique du gain pour sondeurs ultrasonores

Country Status (1)

Country Link
FR (1) FR1482238A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107713580A (zh) * 2017-11-23 2018-02-23 深圳佳莱知家科技有限公司 一种脑波调节助眠枕头

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107713580A (zh) * 2017-11-23 2018-02-23 深圳佳莱知家科技有限公司 一种脑波调节助眠枕头

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