GB2083312B - Method and apparatus for locating position of an object in a confined space - Google Patents

Method and apparatus for locating position of an object in a confined space

Info

Publication number
GB2083312B
GB2083312B GB8034525A GB8034525A GB2083312B GB 2083312 B GB2083312 B GB 2083312B GB 8034525 A GB8034525 A GB 8034525A GB 8034525 A GB8034525 A GB 8034525A GB 2083312 B GB2083312 B GB 2083312B
Authority
GB
United Kingdom
Prior art keywords
confined space
locating position
locating
confined
space
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
GB8034525A
Other versions
GB2083312A (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.)
Coal Industry Patents Ltd
Original Assignee
Coal Industry Patents 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 Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Priority to GB8034525A priority Critical patent/GB2083312B/en
Publication of GB2083312A publication Critical patent/GB2083312A/en
Application granted granted Critical
Publication of GB2083312B publication Critical patent/GB2083312B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
    • G01S13/343—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal using sawtooth modulation
GB8034525A 1980-08-29 1980-10-14 Method and apparatus for locating position of an object in a confined space Expired GB2083312B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8034525A GB2083312B (en) 1980-08-29 1980-10-14 Method and apparatus for locating position of an object in a confined space

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8027952 1980-08-29
GB8034525A GB2083312B (en) 1980-08-29 1980-10-14 Method and apparatus for locating position of an object in a confined space

Publications (2)

Publication Number Publication Date
GB2083312A GB2083312A (en) 1982-03-17
GB2083312B true GB2083312B (en) 1984-05-16

Family

ID=26276722

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8034525A Expired GB2083312B (en) 1980-08-29 1980-10-14 Method and apparatus for locating position of an object in a confined space

Country Status (1)

Country Link
GB (1) GB2083312B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO152108C (en) * 1983-04-05 1985-08-14 Autronica As NIVAAMAALER
US4737791A (en) * 1986-02-19 1988-04-12 Idea, Incorporated Radar tank gauge
FR2600778B1 (en) * 1986-06-27 1988-09-02 Trt Telecom Radio Electr RADAR DEVICE FOR MEASURING THE DISTANCE FROM A SURFACE
FR2622021B1 (en) * 1987-10-16 1990-05-04 Trt Telecom Radio Electr DEVICE FOR MEASURING THE DISTANCE "H" WHICH SEPARATES IT FROM AN OBJECT
DE4332071C2 (en) * 1993-09-21 1995-09-07 Endress Hauser Gmbh Co Level measurement method according to the radar principle
CN111007503B (en) * 2019-09-03 2023-05-16 西安电子科技大学 Moving target focusing and positioning method and system based on frequency spectrum accurate positioning

Also Published As

Publication number Publication date
GB2083312A (en) 1982-03-17

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Legal Events

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