GB2107870B - Apparatus for measuring distances within elongate enclosures - Google Patents

Apparatus for measuring distances within elongate enclosures

Info

Publication number
GB2107870B
GB2107870B GB08223566A GB8223566A GB2107870B GB 2107870 B GB2107870 B GB 2107870B GB 08223566 A GB08223566 A GB 08223566A GB 8223566 A GB8223566 A GB 8223566A GB 2107870 B GB2107870 B GB 2107870B
Authority
GB
United Kingdom
Prior art keywords
measuring distances
elongate enclosures
enclosures
elongate
distances
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
GB08223566A
Other versions
GB2107870A (en
Inventor
Christopher Edward Cope
David Ian Brady
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.)
GEOTECHNICAL MONITORING LIMITE
Original Assignee
GEOTECHNICAL MONITORING LIMITE
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 GEOTECHNICAL MONITORING LIMITE filed Critical GEOTECHNICAL MONITORING LIMITE
Priority to GB08223566A priority Critical patent/GB2107870B/en
Publication of GB2107870A publication Critical patent/GB2107870A/en
Application granted granted Critical
Publication of GB2107870B publication Critical patent/GB2107870B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G01G23/20—Indicating weight by mechanical means
    • G01G23/28—Indicating weight by mechanical means involving auxiliary or memory marks
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
GB08223566A 1981-08-18 1982-08-17 Apparatus for measuring distances within elongate enclosures Expired GB2107870B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08223566A GB2107870B (en) 1981-08-18 1982-08-17 Apparatus for measuring distances within elongate enclosures

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8125215 1981-08-18
GB08223566A GB2107870B (en) 1981-08-18 1982-08-17 Apparatus for measuring distances within elongate enclosures

Publications (2)

Publication Number Publication Date
GB2107870A GB2107870A (en) 1983-05-05
GB2107870B true GB2107870B (en) 1985-04-11

Family

ID=26280503

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08223566A Expired GB2107870B (en) 1981-08-18 1982-08-17 Apparatus for measuring distances within elongate enclosures

Country Status (1)

Country Link
GB (1) GB2107870B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3339984A1 (en) * 1983-11-04 1985-05-23 Endress U. Hauser Gmbh U. Co, 7867 Maulburg SOUND AND ULTRASONIC DISTANCE MEASURING DEVICE
GB8401617D0 (en) * 1984-01-20 1984-02-22 Mardas J A Measuring distance
GB2164151B (en) * 1984-09-07 1988-12-21 James Gerald Lacy Measuring apparatus
EP0224606A1 (en) * 1985-12-02 1987-06-10 Honeywell Regelsysteme GmbH Method for distance measurement and apparatus therefor
EP0225938A1 (en) * 1985-12-20 1987-06-24 Honeywell Regelsysteme GmbH Method of operating a transmit-receive circuit, and apparatus therefor
GB8612479D0 (en) * 1986-05-22 1986-07-02 Bell Fruit Mfg Co Ltd Coin handling equipment
GB8823391D0 (en) * 1988-10-05 1988-11-09 Geotechnical Instr Uk Ltd Measuring liquid level

Also Published As

Publication number Publication date
GB2107870A (en) 1983-05-05

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee