BR9812189A - Sietema e método de digitalização de superfìcietridimensional altamente preciso - Google Patents

Sietema e método de digitalização de superfìcietridimensional altamente preciso

Info

Publication number
BR9812189A
BR9812189A BR9812189-8A BR9812189A BR9812189A BR 9812189 A BR9812189 A BR 9812189A BR 9812189 A BR9812189 A BR 9812189A BR 9812189 A BR9812189 A BR 9812189A
Authority
BR
Brazil
Prior art keywords
target
produces
signal
light source
highly accurate
Prior art date
Application number
BR9812189-8A
Other languages
English (en)
Inventor
Marck Sekowski
Thomas Summers
James M Hardy
Original Assignee
Miara Inc
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 Miara Inc filed Critical Miara Inc
Publication of BR9812189A publication Critical patent/BR9812189A/pt

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
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • 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
    • G01S17/32—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • 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
    • G01S7/497—Means for monitoring or calibrating
    • 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
    • G01S17/32—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S17/36—Systems determining position data of a target 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

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

Abstract

"SISTEMA E MéTODO DE DIGITALIZAçãO DE SUPERFìCIETRIDIMENSIONAL ALTAMENTE PRECISO". Um sistema demedição de distância (10) inclui uma fonte de luz (14) e modulador(18) para transmitir um feixe de luz modulado para um alvo, dessaforma gerando um feixe recebido. Uma unidade de calibragem (40)periodicamente calibra o sistema pelo posicionamento de um alvode calibragem (42) entre a fonte de luz e o alvo, de forma que ofeixe transmitido é interrompido, dessa forma gerando um feixe decalibragem recebido. Um sensor de alvo (30) recebe o alvorefletido e produz um sinal do alvo (32) indicativo do feixe de alvorefletido. Um sensor de referência (36) recebe luz da fonte de luz(14) e produz um sinal de referência (38) para o conjunto decircuitos de processamento (34). O conjunto de circuitos deprocessamento recebe o sinal do alvo (32) e o sinal de referência(38), ajusta a freq³ência do feixe transmitido até que uma diferençade fase zero exista entre o sinal do alvo (32) e o sinal de referência(38), e calcula a distância para o alvo com base na freq³ência queproduz uma diferença de fase zero.
BR9812189-8A 1997-09-09 1998-09-09 Sietema e método de digitalização de superfìcietridimensional altamente preciso BR9812189A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/925,628 US6052190A (en) 1997-09-09 1997-09-09 Highly accurate three-dimensional surface digitizing system and methods
PCT/US1998/018752 WO1999013293A1 (en) 1997-09-09 1998-09-09 Highly accurate three-dimensional surface digitizing system and methods

Publications (1)

Publication Number Publication Date
BR9812189A true BR9812189A (pt) 2001-12-18

Family

ID=25452009

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9812189-8A BR9812189A (pt) 1997-09-09 1998-09-09 Sietema e método de digitalização de superfìcietridimensional altamente preciso

Country Status (10)

Country Link
US (1) US6052190A (pt)
EP (1) EP1019670A4 (pt)
JP (1) JP2001516042A (pt)
KR (1) KR20010015576A (pt)
CN (1) CN1283264A (pt)
AU (1) AU9475898A (pt)
BR (1) BR9812189A (pt)
ID (1) ID26560A (pt)
IL (1) IL134974A0 (pt)
WO (1) WO1999013293A1 (pt)

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Also Published As

Publication number Publication date
US6052190A (en) 2000-04-18
JP2001516042A (ja) 2001-09-25
KR20010015576A (ko) 2001-02-26
ID26560A (id) 2001-01-18
AU9475898A (en) 1999-03-29
WO1999013293A1 (en) 1999-03-18
EP1019670A1 (en) 2000-07-19
IL134974A0 (en) 2001-05-20
CN1283264A (zh) 2001-02-07
EP1019670A4 (en) 2002-11-20

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Legal Events

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FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]