GB1259395A - - Google Patents

Info

Publication number
GB1259395A
GB1259395A GB1259395DA GB1259395A GB 1259395 A GB1259395 A GB 1259395A GB 1259395D A GB1259395D A GB 1259395DA GB 1259395 A GB1259395 A GB 1259395A
Authority
GB
United Kingdom
Prior art keywords
frequency
mhz
difference
signal
signals
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
Other languages
English (en)
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 filed Critical
Publication of GB1259395A publication Critical patent/GB1259395A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
    • 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
    • G01S13/36—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
  • Radar Systems Or Details Thereof (AREA)
GB1259395D 1969-02-14 1969-02-14 Expired GB1259395A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB812669 1969-02-14

Publications (1)

Publication Number Publication Date
GB1259395A true GB1259395A (xx) 1972-01-05

Family

ID=9846257

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1259395D Expired GB1259395A (xx) 1969-02-14 1969-02-14

Country Status (1)

Country Link
GB (1) GB1259395A (xx)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2748124A1 (de) * 1977-10-27 1979-05-03 Philips Patentverwaltung Mikrowellen-entfernungsmessystem zur bestimmung der entfernung eines objekts
GB2186759A (en) * 1982-08-27 1987-08-19 Thomson Csf Radar pulse-compression method employing space-coding
GB2193311A (en) * 1986-06-23 1988-02-03 Truetzschler & Co Apparatus and method for detecting the level of fibre material in a fibre-material store
GB2241399A (en) * 1990-02-13 1991-08-28 Optical Metrology Ltd Radar measurement apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2748124A1 (de) * 1977-10-27 1979-05-03 Philips Patentverwaltung Mikrowellen-entfernungsmessystem zur bestimmung der entfernung eines objekts
GB2186759A (en) * 1982-08-27 1987-08-19 Thomson Csf Radar pulse-compression method employing space-coding
GB2193311A (en) * 1986-06-23 1988-02-03 Truetzschler & Co Apparatus and method for detecting the level of fibre material in a fibre-material store
GB2193311B (en) * 1986-06-23 1991-02-06 Truetzschler Gmbh & Co Kg Textile machine having an apparatus for detecting the level of fibre material in a fibre-material store, a method of operation and a method of calibration
US5002102A (en) * 1986-06-23 1991-03-26 Trutzschler Gmbh & Co. Kg Apparatus for detecting the fill level in a fiber storing device
GB2241399A (en) * 1990-02-13 1991-08-28 Optical Metrology Ltd Radar measurement apparatus

Similar Documents

Publication Publication Date Title
GB1099917A (en) Apparatus for providing a measure of the distance between two spaced points
JPS5567642A (en) Microwave water meter having changeover measuring zone
US3264643A (en) Continuous wave radar system
US3513470A (en) Radio transponder
US3213449A (en) Distance measuring system
US4023171A (en) Microwave velocity sensor using altimeter echo
GB1259395A (xx)
SE340824B (xx)
US2598290A (en) Area identification system
US3848253A (en) Side looking pulse radar system
US3005199A (en) Radio-electric measurement of the angular position
GB671661A (en) Improvements in or relating to distance-measuring systems employing electromagnetic waves
GB1155676A (en) Doppler Radar
GB1251362A (xx)
US3189899A (en) Continuous wave radar systems
US3594796A (en) Distance measuring
GB1121289A (en) Dual signal receiving system
US3126540A (en) Mixer
Ismail A precise new system of FM radar
GB1145783A (en) Radar system for measuring position and velocity of a distant object
GB1331525A (en) Method and apparatus for gauging the thickness of flat metal products
US2853704A (en) Radio direction finders
JPS6465420A (en) Level measuring instrument
GB806785A (en) Improvements in electromagnetic detecting and tracking devices
SU1182259A1 (ru) Устройство дл измерени толщины диэлектрических изделий

Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed