WO1995009370A3 - Laser sensor capable of measuring distance, velocity, and acceleration - Google Patents

Laser sensor capable of measuring distance, velocity, and acceleration Download PDF

Info

Publication number
WO1995009370A3
WO1995009370A3 PCT/US1994/010978 US9410978W WO9509370A3 WO 1995009370 A3 WO1995009370 A3 WO 1995009370A3 US 9410978 W US9410978 W US 9410978W WO 9509370 A3 WO9509370 A3 WO 9509370A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
velocity
phase difference
acceleration
laser sensor
Prior art date
Application number
PCT/US1994/010978
Other languages
French (fr)
Other versions
WO1995009370A2 (en
Inventor
Mark L Wilson
Original Assignee
Honeywell 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 Honeywell Inc filed Critical Honeywell Inc
Priority to DE69432150T priority Critical patent/DE69432150T2/en
Priority to EP95912065A priority patent/EP0721595B1/en
Priority to CA002171216A priority patent/CA2171216C/en
Priority to JP51044095A priority patent/JP3622969B2/en
Publication of WO1995009370A2 publication Critical patent/WO1995009370A2/en
Publication of WO1995009370A3 publication Critical patent/WO1995009370A3/en

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
    • 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
    • G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
    • 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
    • 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
    • G01S17/50—Systems of measurement based on relative movement of target
    • 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
    • G01S7/491—Details of non-pulse systems
    • G01S7/4912—Receivers
    • G01S7/4915—Time delay measurement, e.g. operational details for pixel components; Phase measurement

Abstract

A light based distance, velocity and acceleration sensor which uses phase difference to determine the desired measurement. A laser signal is modulated by an oscillator signal and reflected off an object to a signal receiver. The reflected laser signal and the oscillator signal then pass through a dual path conditioning circuit, where the path lengths and circuit elements of the two paths are identical to cancel the effets of propagation delays in an output signal. The conditioned signals are passed through a phase comparator, to produce a signal indicative of the phase difference between the oscillator signal and the reflected laser signal. The phase difference is directly proportional to the distance between the sensor and the object.
PCT/US1994/010978 1993-09-30 1994-09-28 Laser sensor capable of measuring distance, velocity, and acceleration WO1995009370A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE69432150T DE69432150T2 (en) 1993-09-30 1994-09-28 LASER SENSOR, WITH THE POSSIBILITY OF MEASURING DISTANCE, SPEED AND ACCELERATION
EP95912065A EP0721595B1 (en) 1993-09-30 1994-09-28 Laser sensor capable of measuring distance, velocity, and acceleration
CA002171216A CA2171216C (en) 1993-09-30 1994-09-28 Laser sensor capable of measuring distance, velocity, and acceleration
JP51044095A JP3622969B2 (en) 1993-09-30 1994-09-28 Laser sensor capable of measuring distance, speed and acceleration

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/130,054 US5396510A (en) 1993-09-30 1993-09-30 Laser sensor capable of measuring distance, velocity, and acceleration
US08/130,054 1993-09-30

Publications (2)

Publication Number Publication Date
WO1995009370A2 WO1995009370A2 (en) 1995-04-06
WO1995009370A3 true WO1995009370A3 (en) 1995-06-08

Family

ID=22442845

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/010978 WO1995009370A2 (en) 1993-09-30 1994-09-28 Laser sensor capable of measuring distance, velocity, and acceleration

Country Status (5)

Country Link
US (1) US5396510A (en)
EP (1) EP0721595B1 (en)
JP (1) JP3622969B2 (en)
DE (2) DE4434666A1 (en)
WO (1) WO1995009370A2 (en)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5784023A (en) * 1995-06-26 1998-07-21 Bluege; John Speed detection method
US5724265A (en) * 1995-12-12 1998-03-03 Hutchings; Lawrence J. System and method for measuring movement of objects
US6122960A (en) 1995-12-12 2000-09-26 Acceleron Technologies, Llc. System and method for measuring movement of objects
US5899963A (en) * 1995-12-12 1999-05-04 Acceleron Technologies, Llc System and method for measuring movement of objects
DE19804059B4 (en) * 1998-02-03 2006-02-09 Robert Bosch Gmbh Device for optical distance measurement
DE19830359A1 (en) * 1998-07-07 2000-01-20 Helge Zwosta Spatial position and movement determination of body and body parts for remote control of machine and instruments
WO2000012848A1 (en) * 1998-09-01 2000-03-09 Leopold Kostal Gmbh & Co. Kg Method for carrying out a keyless access authorisation check and keyless access authorisation check device
DE19851307B4 (en) * 1998-10-08 2007-12-27 Zoller & Fröhlich GmbH System and method for determining at least one physical quantity
DE19928915A1 (en) * 1999-06-24 2001-01-11 Bosch Gmbh Robert Procedure for determining visibility
JP4630413B2 (en) * 1999-12-07 2011-02-09 株式会社トプコン Distance measuring machine and light receiving unit adjusting method of distance measuring machine
EP1191697B1 (en) * 2000-07-31 2011-12-21 HILTI Aktiengesellschaft Local Oscillator for the Generation of an HF-Signal to be Directly Mixed by Avalanche-Photodiodes
TW442652B (en) * 2000-09-11 2001-06-23 Asia Optical Co Inc Optical receiver circuit of laser range-finder
US6561047B1 (en) * 2001-07-03 2003-05-13 Dreamwell, Ltd. Method and system for analyzing motion transferred to a subject on a sleeping surface
US6844537B2 (en) * 2001-12-31 2005-01-18 Honeywell International Inc. Method and device for measuring the velocity of a moving surface
DE10222797C5 (en) * 2002-05-23 2018-07-12 Sick Ag distance determination
DE10233596B4 (en) * 2002-07-24 2007-05-16 Xenia Bruehn Method for determining the phase shift between two high-frequency signals of the same frequency
US7312856B2 (en) * 2002-09-12 2007-12-25 Lockheed Martin Corporation Programmable pulse capture device with automatic gain control
US9587938B2 (en) 2003-06-17 2017-03-07 Troxler Electronic Laboratories, Inc. Method and apparatus for determining a characteristic of a construction material
US7389199B2 (en) * 2003-06-17 2008-06-17 Troxler Electronics Laboratories, Inc. Method of determining a dimension of a sample of a construction material and associated apparatus
DE10331074A1 (en) * 2003-07-09 2005-02-03 Conti Temic Microelectronic Gmbh Sensor arrangement for distance and / or speed measurement
DE102004063738B4 (en) * 2004-12-29 2007-10-25 Intelligendt Systems & Services Gmbh & Co.Kg Ultrasonic testing device
DE102006032127B4 (en) * 2006-07-05 2008-04-30 Aesculap Ag & Co. Kg Calibration method and calibration device for a surgical referencing unit
USRE46930E1 (en) * 2007-12-21 2018-07-03 Leddartech Inc. Distance detection method and system
EP3206046B1 (en) * 2007-12-21 2021-08-25 Leddartech Inc. Detection and ranging methods and systems
GB2486164A (en) * 2010-11-30 2012-06-13 St Microelectronics Res & Dev Using a single photon avalanche diode (SPAD) as a proximity detector
CA2991928C (en) 2011-06-06 2021-03-02 Troxler Electronic Laboratories, Inc. Optical method and apparatus for determining a characteristic such as volume and density of an excavated void in a construction material
US9110088B1 (en) * 2014-02-10 2015-08-18 Selwyn E. Wright Propagation medium velocity measurement system
JP2016005231A (en) * 2014-06-19 2016-01-12 ルネサスエレクトロニクス株式会社 Optical receiver
CN107565369B (en) * 2017-08-17 2020-05-19 大族激光科技产业集团股份有限公司 Pulse waveform modulation system of laser
CN109270547A (en) * 2018-08-22 2019-01-25 深亮智能技术（中山）有限公司 A kind of laser time of flight optical radar
CN110859668B (en) * 2019-11-15 2021-05-25 武汉芸禾光电技术有限公司 Combined pulse high-power semiconductor laser therapeutic instrument driving device and system
EP4185924A1 (en) 2020-07-21 2023-05-31 Leddartech Inc. Beam-steering device particularly for lidar systems
CA3210182A1 (en) 2020-07-21 2021-10-06 Leddartech Inc. Beam-steering devices and methods for lidar applications
WO2022016277A1 (en) 2020-07-21 2022-01-27 Leddartech Inc. Systems and methods for wide-angle lidar using non-uniform magnification optics

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0176448A2 (en) * 1984-09-28 1986-04-02 Electricite De France Detector of a light beam with a photodiode and bias control circuit
US4721369A (en) * 1985-09-18 1988-01-26 Canon Kabushiki Kaisha Gradient index single lens
GB2241399A (en) * 1990-02-13 1991-08-28 Optical Metrology Ltd Radar measurement apparatus

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122427A (en) * 1976-06-24 1978-10-24 Herbert Karsh Motion monitor
US4453825A (en) * 1979-12-07 1984-06-12 Hewlett-Packard Company Distance transducer
US4280354A (en) * 1980-02-12 1981-07-28 Tencor Instruments Acoustic method and apparatus for measuring surfaces of wafers and similar articles
DE3122702C2 (en) * 1981-06-06 1983-11-03 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Method for determining the pulse duty factor and / or phase angle of periodic electrical square-wave signals and arrangements for carrying out the method and applying the method
US4611915A (en) * 1983-06-07 1986-09-16 The United States Of America As Represented By The Secretary Of The Air Force Absolute distance sensor
US4725841A (en) * 1983-06-30 1988-02-16 X-Cyte, Inc. System for interrogating a passive transponder carrying phase-encoded information
CA1271546A (en) * 1985-10-08 1990-07-10 Accutrak Systems Limited Vehicle guidance and ranging system
US4893077A (en) * 1987-05-28 1990-01-09 Auchterlonie Richard C Absolute position sensor having multi-layer windings of different pitches providing respective indications of phase proportional to displacement
US5003260A (en) * 1987-05-28 1991-03-26 Auchterlonie Richard C Inductive position sensor having plural phase windings on a support and a displaceable phase sensing element returning a phase indicating signal by electromagnetic induction to eliminate wire connections
EP0336027A1 (en) * 1988-04-05 1989-10-11 Pandel Instruments, Inc Method and apparatus for precision ranging
US5291031A (en) * 1992-04-06 1994-03-01 Telecommunications Research Laboratories Optical phase difference range determination in liquid level sensor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0176448A2 (en) * 1984-09-28 1986-04-02 Electricite De France Detector of a light beam with a photodiode and bias control circuit
US4721369A (en) * 1985-09-18 1988-01-26 Canon Kabushiki Kaisha Gradient index single lens
GB2241399A (en) * 1990-02-13 1991-08-28 Optical Metrology Ltd Radar measurement apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BAUSTERT ET AL.: "ELECTROMAGNETIC INTERFERENCE AT ELECTROOPTICAL INTERFACES", IRE WESCON CONVENTION RECORD, vol. 32, November 1988 (1988-11-01), NORTH HOLLYWOOD US, pages 16-5-1 - 16-5-7, XP000099212 *

Also Published As

Publication number Publication date
WO1995009370A2 (en) 1995-04-06
JPH09503583A (en) 1997-04-08
EP0721595A1 (en) 1996-07-17
DE4434666A1 (en) 1995-04-13
JP3622969B2 (en) 2005-02-23
EP0721595B1 (en) 2003-02-19
DE69432150D1 (en) 2003-03-27
DE69432150T2 (en) 2003-12-04
US5396510A (en) 1995-03-07

Similar Documents

Publication Publication Date Title
WO1995009370A3 (en) Laser sensor capable of measuring distance, velocity, and acceleration
EP0440668B1 (en) A sensing method employing a fibre optic sensor system
US4112756A (en) Ultrasonic air data system
GB2066015A (en) Distance measurment
WO2003021285A3 (en) System and method of measuring flow velocity in three axes
JPS59157581A (en) Fm/cw radar device
US5764161A (en) Sensing apparatus using frequency changes
US4210399A (en) System for relative motion detection between wave transmitter-receiver and irregular reflecting surface
CA2171216A1 (en) Laser sensor capable of measuring distance, velocity, and acceleration
JPH0569192B2 (en)
US4888480A (en) Optical sensing arrangements with wavelength and time-displacement detection
JPS60218086A (en) Distance measuring instrument
JPH0129274B2 (en)
ATE58248T1 (en) VELOCITY MEASUREMENT ARRANGEMENT OF AN EARTH-BOUND VEHICLE.
JP3240333B2 (en) Object detection device
JPS62169072A (en) Tracking radar
JP2856042B2 (en) Radar equipment for vehicles
JPH0367195A (en) Method and instrument for measuring temperature and humidity of atmospheric air by utilizing wave propagation
JP2008134147A (en) Doppler speedometer and speed measuring method using doppler effect
GB2200810A (en) Optical proximity detector
SU1123397A1 (en) Method of determining immediate value and structural constant of wind velocity
JPS6428503A (en) Length measuring device
DK0669005T3 (en) The microwave Doppler module.
JPH04279889A (en) Laser range instrument
SU907491A1 (en) Ionospheric station

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): CA JP

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE

AK Designated states

Kind code of ref document: A3

Designated state(s): CA JP

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2171216

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 1995912065

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1995912065

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1995912065

Country of ref document: EP