DE68925998D1 - Hochauflösendes Zeitdifferenzmessgerät - Google Patents

Hochauflösendes Zeitdifferenzmessgerät

Info

Publication number
DE68925998D1
DE68925998D1 DE68925998T DE68925998T DE68925998D1 DE 68925998 D1 DE68925998 D1 DE 68925998D1 DE 68925998 T DE68925998 T DE 68925998T DE 68925998 T DE68925998 T DE 68925998T DE 68925998 D1 DE68925998 D1 DE 68925998D1
Authority
DE
Germany
Prior art keywords
time difference
high resolution
difference meter
resolution time
meter
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 - Lifetime
Application number
DE68925998T
Other languages
English (en)
Other versions
DE68925998T2 (de
Inventor
Fumio Ohtomo
Masahiro Ohishi
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.)
Topcon Corp
Original Assignee
Topcon Corp
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 Topcon Corp filed Critical Topcon Corp
Application granted granted Critical
Publication of DE68925998D1 publication Critical patent/DE68925998D1/de
Publication of DE68925998T2 publication Critical patent/DE68925998T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F10/00—Apparatus for measuring unknown time intervals by electric means
    • G04F10/06—Apparatus for measuring unknown time intervals by electric means by measuring phase
    • 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
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
DE68925998T 1988-06-29 1989-06-27 Hochauflösendes Zeitdifferenzmessgerät Expired - Lifetime DE68925998T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16189388 1988-06-29

Publications (2)

Publication Number Publication Date
DE68925998D1 true DE68925998D1 (de) 1996-04-25
DE68925998T2 DE68925998T2 (de) 1996-09-12

Family

ID=15744009

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68925998T Expired - Lifetime DE68925998T2 (de) 1988-06-29 1989-06-27 Hochauflösendes Zeitdifferenzmessgerät

Country Status (4)

Country Link
US (1) US5075878A (de)
EP (1) EP0348898B1 (de)
JP (1) JP2916780B2 (de)
DE (1) DE68925998T2 (de)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5198750A (en) * 1990-02-12 1993-03-30 Milan Prokin Extremely wide range frequency measurement method
DE4106892A1 (de) * 1991-03-05 1992-09-10 Zeiss Carl Fa Verfahren und vorrichtung zum messen von entfernungen
FR2678071B1 (fr) * 1991-06-18 1994-11-04 Thomson Csf Dispositif electronique de mesure de retards.
US5231598A (en) * 1991-09-30 1993-07-27 National Semiconductor Corporation Direct digital synthesis measurement signal skew tester
US5293162A (en) * 1992-03-09 1994-03-08 Bachalo William D Laser based tracking device for detecting the distance between a vehicle and a roadway marker
JP3120202B2 (ja) * 1993-11-18 2000-12-25 株式会社トプコン パルス方式の光波距離計
US5453932A (en) * 1994-01-12 1995-09-26 Advanced Grade Technology, Inc. Device and method for detecting and elimination of spurious ultrasonic ranging echoes
FR2725279B1 (fr) * 1994-10-04 1996-10-25 Commissariat Energie Atomique Dispositif de telemetrie comportant un microlaser
US5831719A (en) * 1996-04-12 1998-11-03 Holometrics, Inc. Laser scanning system
JP4857466B2 (ja) * 2001-01-18 2012-01-18 株式会社デンソー 時間測定装置及び距離測定装置
JP4037774B2 (ja) * 2003-02-19 2008-01-23 富士通テン株式会社 レーダ装置
CN100523724C (zh) * 2003-10-24 2009-08-05 亚洲光学股份有限公司 雷射测距装置
US7046345B2 (en) * 2004-01-12 2006-05-16 Asia Optical Co., Inc. Apparatus for precise distance measurement
US7124036B2 (en) * 2004-06-25 2006-10-17 Underground Utility Services, Inc. Method and system for determining demand in a water distribution system
JP2006133214A (ja) * 2004-10-04 2006-05-25 Topcon Corp 時間差測定装置および測定方法並びに測距装置および測距方法
DE102004060622B4 (de) * 2004-12-16 2015-01-22 Hilti Aktiengesellschaft Impuls-Laserdistanzhandmessgerät
JP4878127B2 (ja) 2005-06-10 2012-02-15 株式会社トプコン 時間差測定装置および距離測定装置並びに距離測定方法
JP4116053B2 (ja) 2006-09-20 2008-07-09 北陽電機株式会社 測距装置
WO2008047640A1 (fr) * 2006-10-18 2008-04-24 Panasonic Electric Works Co., Ltd. Dispositif de détection d'informations spatiales
US7945408B2 (en) 2007-09-20 2011-05-17 Voxis, Inc. Time delay estimation
DE102011075577B4 (de) * 2011-05-10 2013-01-31 MULTIPOND Wägetechnik GmbH Signalverarbeitungsverfahren, Vorrichtung zur Signalverarbeitung und Waage mit Vorrichtung zur Signalverarbeitung
DE102012106149A1 (de) * 2012-07-09 2014-01-09 Endress + Hauser Gmbh + Co. Kg Verfahren und Vorrichtung zur laserbasierten Bestimmung des Füllstands eines Füllguts in einem Behälter
US9335415B2 (en) * 2012-10-31 2016-05-10 The Boeing Company Modulated laser range finder and method
US9606228B1 (en) 2014-02-20 2017-03-28 Banner Engineering Corporation High-precision digital time-of-flight measurement with coarse delay elements
US10353062B2 (en) 2016-07-13 2019-07-16 Texas Instruments Incorporated Methods and apparatus for narrowband ranging systems using reference signal interpolation
JP2020519881A (ja) * 2017-05-08 2020-07-02 ベロダイン ライダー， インク． Ｌｉｄａｒデータ収集及び制御
US20200195262A1 (en) * 2018-12-12 2020-06-18 Industrial Technology Research Institute Frequency synthesizer and method thereof
DE102019205731A1 (de) 2019-04-18 2020-10-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Zeit-zu-Digital-Wandler-Anordnung

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1623564B1 (de) * 1967-12-01 1971-08-26 Siemens Ag Verfahren und Anordnung zur Entfernungsmessung mit hoher Präzision auf optischem Wege
FR2327553A1 (fr) * 1975-10-10 1977-05-06 Thomson Csf Dispositif de mesure par correlation electronique du retard entre deux signaux temporels et systemes comportant un tel dispositif
US4181431A (en) * 1976-07-31 1980-01-01 Mitec-Moderne Industrietechnik Gmbh Laser distance measuring apparatus
AT353488B (de) * 1977-12-07 1979-11-12 Eumig Impuls-entfernungsmesseinrichtung zur ent- fernungsmessung mittels elektromagnetischer strahlen
DE2908854C2 (de) * 1979-03-07 1986-04-17 Endress U. Hauser Gmbh U. Co, 7867 Maulburg Entfernungsmeßgerät nach dem Impulslaufzeitverfahren
JPS56132580A (en) * 1980-03-10 1981-10-16 Tokyo Optical Co Ltd Light wave rangemeter
US4455556A (en) * 1980-05-19 1984-06-19 Nippon Electric Co., Ltd. Distance measuring equipment
JPS5838880A (ja) * 1981-08-31 1983-03-07 Tokyo Optical Co Ltd 光波距離計
JPS58174874A (ja) * 1982-04-08 1983-10-13 Tokyo Optical Co Ltd 光波測距方法及びその装置
US4744653A (en) * 1984-04-12 1988-05-17 Matsushita Electric Industrial Co., Ltd. Distance measurement by laser light
JPS6263885A (ja) * 1985-08-21 1987-03-20 Yokogawa Electric Corp 時間幅計測装置
US4715706A (en) * 1986-10-20 1987-12-29 Wang Charles P Laser doppler displacement measuring system and apparatus
US4855585A (en) * 1986-11-21 1989-08-08 Olympus Optical Co., Ltd. Distance measuring apparatus
US4895441A (en) * 1987-03-19 1990-01-23 Pandel Instruments, Inc. Method and apparatus for precision ranging
US4908784A (en) * 1987-08-04 1990-03-13 Wave Technologies, Inc. Method and apparatus for asynchronous time measurement
US4861158A (en) * 1987-09-30 1989-08-29 Eaton Corporation Chirp and Doppler optical gauge
US4856893A (en) * 1987-09-30 1989-08-15 Eaton Corporation Laser distance measuring method and apparatus
US4818100A (en) * 1987-09-30 1989-04-04 Eaton Corporation Laser doppler and time of flight range measurement
US4861159A (en) * 1987-09-30 1989-08-29 Eaton Corporation Dynamic doppler optical gauge

Also Published As

Publication number Publication date
US5075878A (en) 1991-12-24
DE68925998T2 (de) 1996-09-12
EP0348898B1 (de) 1996-03-20
JP2916780B2 (ja) 1999-07-05
JPH0277673A (ja) 1990-03-16
EP0348898A2 (de) 1990-01-03
EP0348898A3 (de) 1991-07-31

Similar Documents

Publication Publication Date Title
DE68925998D1 (de) Hochauflösendes Zeitdifferenzmessgerät
DE68926589D1 (de) Prüfgerät
ATA27589A (de) Inkrementales messsystem
DE58906629D1 (de) Füllstandsmessgerät.
ATA21989A (de) Inkrementales messsystem
TR24442A (tr) N-fenilpirazol-4-yl eter tuerevleri
DE69029916D1 (de) Taktsignalgenerator
DK174888A (da) Gasmaaler
KR880012871U (ko) 조합계량기
ATA24689A (de) Inkrementales messsystem
DE68908796D1 (de) Drehmagnetmesser.
BR8906150A (pt) Medidor de watthora eletronico
NO900317D0 (no) Maalemetode.
DE3879889D1 (de) Testmeter.
DK176389A (da) Sonder
DE68916163D1 (de) Verunreinigungsmessgerät.
KR900702338A (ko) 충전-레벨 표시기
ATA123489A (de) Inkrementales messsystem
DE68903218D1 (de) Messskala.
KR900016038U (ko) 가스미터
RO94469A2 (ro) Element rezistiv special
UA27194A1 (uk) Спектрометр високого дозволу
KR890019756U (ko) 가임기간 측정기
BR8906247A (pt) Medidor circunferencial
IT8818703A0 (it) Bilancia igienico-calorica

Legal Events

Date Code Title Description
8364 No opposition during term of opposition