WO2007020780A8 - 測量装置 - Google Patents

測量装置

Info

Publication number
WO2007020780A8
WO2007020780A8 PCT/JP2006/314875 JP2006314875W WO2007020780A8 WO 2007020780 A8 WO2007020780 A8 WO 2007020780A8 JP 2006314875 W JP2006314875 W JP 2006314875W WO 2007020780 A8 WO2007020780 A8 WO 2007020780A8
Authority
WO
WIPO (PCT)
Prior art keywords
light
measurement
measuring
reference light
path
Prior art date
Application number
PCT/JP2006/314875
Other languages
English (en)
French (fr)
Other versions
WO2007020780A1 (ja
Inventor
Masahiro Ohishi
Yoshikatsu Tokuda
Original Assignee
Topcon Corp
Masahiro Ohishi
Yoshikatsu Tokuda
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, Masahiro Ohishi, Yoshikatsu Tokuda filed Critical Topcon Corp
Priority to US12/063,820 priority Critical patent/US7626686B2/en
Priority to EP06781786.6A priority patent/EP1923721B1/en
Priority to CN2006800297740A priority patent/CN101248368B/zh
Publication of WO2007020780A1 publication Critical patent/WO2007020780A1/ja
Publication of WO2007020780A8 publication Critical patent/WO2007020780A8/ja

Links

Classifications

    • 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
    • G01S17/14—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves wherein a voltage or current pulse is initiated and terminated in accordance with the pulse transmission and echo reception respectively, e.g. using counters
    • 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
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4818—Constructional features, e.g. arrangements of optical elements using optical fibres
    • 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
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/483—Details of pulse systems
    • G01S7/484—Transmitters
    • 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
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/483—Details of pulse systems
    • G01S7/486—Receivers
    • G01S7/4865—Time delay measurement, e.g. time-of-flight measurement, time of arrival measurement or determining the exact position of a peak
    • 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
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/483—Details of pulse systems
    • G01S7/486—Receivers
    • G01S7/487—Extracting wanted echo signals, e.g. pulse detection

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Measurement Of Optical Distance (AREA)

Abstract

　光量調整を行わずに、広範囲のダイナミックレンジをカバーできる光の所要時間差又は測定対象物までの距離を測定する測量装置。発光部１から射出したパルス光を参照光路Ｆ１への基準光と、測定対象物に照射され、反射されて戻る測定光路Ｆ２への測定光に分岐し、これらを受光部９で受光する。測定光路Ｆ２の途中に、多重反射光ファイバーＭｐ１を挿入することにより、測定光は光量が順次一定の割合で減衰する多重パルス列となる。このパルス列から参照光の受光レベルと略同一の測定光を選択できる。この選択された測定光と基準光を基に、測定光が測定光路Ｆ２を通過する時間と基準光が参照光路Ｆ１を通過する時間との所要時間差又は測定対象物までの距離を測定する。
PCT/JP2006/314875 2005-08-15 2006-07-27 測量装置 WO2007020780A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/063,820 US7626686B2 (en) 2005-08-15 2006-07-27 Surveying instrument
EP06781786.6A EP1923721B1 (en) 2005-08-15 2006-07-27 Measuring device
CN2006800297740A CN101248368B (zh) 2005-08-15 2006-07-27 测量装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005-235287 2005-08-15
JP2005235287A JP4694304B2 (ja) 2005-08-15 2005-08-15 測量装置

Publications (2)

Publication Number Publication Date
WO2007020780A1 WO2007020780A1 (ja) 2007-02-22
WO2007020780A8 true WO2007020780A8 (ja) 2007-09-07

Family

ID=37757445

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/314875 WO2007020780A1 (ja) 2005-08-15 2006-07-27 測量装置

Country Status (5)

Country Link
US (1) US7626686B2 (ja)
EP (1) EP1923721B1 (ja)
JP (1) JP4694304B2 (ja)
CN (1) CN101248368B (ja)
WO (1) WO2007020780A1 (ja)

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Also Published As

Publication number Publication date
US7626686B2 (en) 2009-12-01
US20090046272A1 (en) 2009-02-19
CN101248368B (zh) 2011-04-13
EP1923721B1 (en) 2014-03-05
EP1923721A4 (en) 2013-02-27
JP4694304B2 (ja) 2011-06-08
CN101248368A (zh) 2008-08-20
WO2007020780A1 (ja) 2007-02-22
EP1923721A1 (en) 2008-05-21
JP2007051877A (ja) 2007-03-01

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