BE479719A - - Google Patents

Info

Publication number
BE479719A
BE479719A BE479719DA BE479719A BE 479719 A BE479719 A BE 479719A BE 479719D A BE479719D A BE 479719DA BE 479719 A BE479719 A BE 479719A
Authority
BE
Belgium
Prior art keywords
pulses
emi
oscillating circuit
pulse
oscillations
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE479719A publication Critical patent/BE479719A/fr

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06Systems determining position data of a target
    • G01S13/08Systems for measuring distance only
    • G01S13/10Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/103Systems for measuring distance only using transmission of interrupted, pulse modulated waves particularities of the measurement of the distance
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S1/00Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
BE479719D BE479719A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE479719T

Publications (1)

Publication Number Publication Date
BE479719A true BE479719A (ja)

Family

ID=3870331

Family Applications (1)

Application Number Title Priority Date Filing Date
BE479719D BE479719A (ja)

Country Status (2)

Country Link
BE (1) BE479719A (ja)
FR (1) FR958890A (ja)

Also Published As

Publication number Publication date
FR958890A (ja) 1950-03-21

Similar Documents

Publication Publication Date Title
JP3839851B2 (ja) 電子距離測定器具
US4960329A (en) Chirp pulse echo ranging apparatus
JP2006521536A5 (ja)
SE446773B (sv) Sett att beroringsfritt bestemma tunt materials vikt per ytenhet eller tjocklek och apparat for beroringsfri bestemning av tunt materials vikt per ytenhet eller tjocklek
KR20000057568A (ko) 초음파 거리 측정 방법 및 장치
JPS6347685A (ja) 伝送時間測定の原理による光電距離測定装置
JPS61167889A (ja) 距離測定装置
US3542472A (en) Distance measuring apparatus
JPS5826558B2 (ja) 走行時間測定の原理によるレ−ザ距離測定装置
EP0204613A1 (fr) Procédé et dispositif pour la mesure du temps de propagation d'une onde
JPS601590B2 (ja) 光パルスの走行時間測定の原理によるレ−ザ距離測定装置
JP3225682B2 (ja) 距離測定装置
US5048969A (en) Piezoelectric measurement of laser power
US6370963B1 (en) Ultrasonic transit time flow sensor and method
CN109100670A (zh) 一种光纤局部放电超声传感系统的灵敏度校验方法
BE479719A (ja)
Kurtti et al. An integrated receiver channel for a laser scanner
JPH0367195A (ja) 波動伝播を利用した大気の温度及び湿度測定方法及び装置
EP0492392B1 (fr) Dispositif de contrÔle non destructif à courants de Foucault
JPH11304909A (ja) 信号光の電気光学的補正装置付レーザレーダ
FR2676810A1 (fr) Dispositif de mesure du niveau de liquide.
JPH08105971A (ja) マルチパルスによる測距方法とその装置
JPH04307387A (ja) 測距装置
JPH0381687A (ja) レーザ測距装置
RU2773980C1 (ru) Метод измерения скорости звука в жидкости