BR0314774A - Dispositivo de medição interferométrico - Google Patents
Dispositivo de medição interferométricoInfo
- Publication number
- BR0314774A BR0314774A BR0314774-6A BR0314774A BR0314774A BR 0314774 A BR0314774 A BR 0314774A BR 0314774 A BR0314774 A BR 0314774A BR 0314774 A BR0314774 A BR 0314774A
- Authority
- BR
- Brazil
- Prior art keywords
- radius
- conducted
- probe
- measuring
- modulating
- Prior art date
Links
- 230000005855 radiation Effects 0.000 abstract 4
- 239000000523 sample Substances 0.000 abstract 4
- 239000000835 fiber Substances 0.000 abstract 2
- 230000001427 coherent effect Effects 0.000 abstract 1
- 238000011156 evaluation Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 238000004441 surface measurement Methods 0.000 abstract 1
- 230000001131 transforming effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
- G01B9/02055—Reduction or prevention of errors; Testing; Calibration
- G01B9/02062—Active error reduction, i.e. varying with time
- G01B9/02064—Active error reduction, i.e. varying with time by particular adjustment of coherence gate, i.e. adjusting position of zero path difference in low coherence interferometry
- G01B9/02065—Active error reduction, i.e. varying with time by particular adjustment of coherence gate, i.e. adjusting position of zero path difference in low coherence interferometry using a second interferometer before or after measuring interferometer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
- G01B9/02049—Interferometers characterised by particular mechanical design details
- G01B9/0205—Interferometers characterised by particular mechanical design details of probe head
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
- G01B9/02055—Reduction or prevention of errors; Testing; Calibration
- G01B9/02056—Passive reduction of errors
- G01B9/02057—Passive reduction of errors by using common path configuration, i.e. reference and object path almost entirely overlapping
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
- G01B9/0209—Low-coherence interferometers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Instruments For Measurement Of Length By Optical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
"DISPOSITIVO DE MEDIçãO INTERFEROMéTRICO". A presente invenção refere-se a um dispositivo de medição interferométrico para o registro da forma, da rugosidade ou da distância da superfície de um objeto de medição (8), com um interferómetro de modulação (2), ao qual é conduzida, de uma fonte de radiação (1), uma irradiação de coerência curta, e que apresenta um primeiro divisor de radiação (2.3) para a divisão da irradiação fornecida em um primeiro raio parcial (2.1), conduzido através de um primeiro braço, e em um segundo raio parcial (2.1<39>), conduzido através de um segundo braço, dos quais um é deslocado em relação ao outro, por meio de um dispositivo de modulação (2.2, 2.2<39>), em sua fase de luz ou freq³ência de luz, e percorre um trajeto de retardamento (2.9<39>), e os quais, logo em seguida, são reunidos em um outro divisor de radiação (2.10) do interferómetro de modulação (2), com uma sonda de medição (3) espacialmente separada do interferómetro de modulação (2) e acoplada ou podendo ser acoplada com este, através de uma disposição de fibra ótica (6), em cuja sonda os raios parciais reunidos são distribuídos, através de uma unidade de fibra ótica da sonda (3.1, 3.2) com uma superfície de saída (3.4) inclinada do lado do objeto, em um raio de medição conduzido à superfície e um raio de referência, e em cuja sonda o raio de medição (r~ 1~, (t)) refletido na superfície e o raio de referência (r~ 2~ (t)) refletido em um plano de referência são sobrepostos, e com um dispositivo de recepção (4) e uma unidade de avaliação (5) para a transformação da irradiação conduzida a ele em sinais elétricos, e para a avaliação dos sinais com base em uma diferença de fases. Uma medição exata da superfície é favorecida pelo fato de que, o ângulo de inclinação (<sym>) da superfície de saída (3.4) em relação à normal do eixo da sonda óptica (3.5) é de, pelo menos, 46<198> (Figura 4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10244553A DE10244553B3 (de) | 2002-09-25 | 2002-09-25 | Interferometrische Messeinrichtung |
| PCT/DE2003/001032 WO2004029544A1 (de) | 2002-09-25 | 2003-03-28 | Interferometrische messeinrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR0314774A true BR0314774A (pt) | 2005-07-26 |
Family
ID=30010633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR0314774-6A BR0314774A (pt) | 2002-09-25 | 2003-03-28 | Dispositivo de medição interferométrico |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7400408B2 (pt) |
| EP (1) | EP1546646A1 (pt) |
| JP (1) | JP2006500571A (pt) |
| CN (1) | CN1294401C (pt) |
| BR (1) | BR0314774A (pt) |
| DE (1) | DE10244553B3 (pt) |
| WO (1) | WO2004029544A1 (pt) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005046605A1 (de) * | 2005-09-29 | 2007-04-05 | Robert Bosch Gmbh | Interferometrische Messeinrichtung |
| US7295293B2 (en) * | 2005-10-21 | 2007-11-13 | Hewlett-Packard Development Company, L.P. | Apparatus and method for testing a reflector coating |
| DE102006001732A1 (de) | 2006-01-13 | 2007-07-19 | Robert Bosch Gmbh | Interferometrische Messvorrichtung |
| DE102006014766A1 (de) * | 2006-03-30 | 2007-10-04 | Robert Bosch Gmbh | Interferometrische Messvorrichtung |
| DE102006048316A1 (de) | 2006-10-12 | 2008-04-17 | Robert Bosch Gmbh | Optische Fasersonde und Verfahren zur Herstellung einer optischen Fasersonde |
| DE102006048317A1 (de) * | 2006-10-12 | 2008-04-17 | Robert Bosch Gmbh | Optische Fasersonde |
| DE102007018817A1 (de) | 2007-04-20 | 2008-10-23 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Druckmessung |
| DE102009029372A1 (de) * | 2009-09-11 | 2011-03-24 | Robert Bosch Gmbh | Messvorrichtung zur Messung einer Entfernung zwischen der Messvorrichtung und einem Zielobjekt mit Hilfe optischer Messstrahlung |
| DE102010022641B4 (de) * | 2010-06-04 | 2013-07-04 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Messeinrichtung und Verfahren zur Vermessung optischer Weglängenänderungen |
| EP2643904B1 (en) * | 2010-11-24 | 2020-08-12 | Fianium Limited | Optical systems |
| FR2979143B1 (fr) * | 2011-08-16 | 2016-03-25 | Univ Joseph Fourier | Dispositif optique d'analyse interferometrique de l'etat de surface interne d'un tube |
| EP2847651A1 (en) * | 2012-05-10 | 2015-03-18 | Koninklijke Philips N.V. | Gesture control |
| US9869795B2 (en) * | 2013-08-30 | 2018-01-16 | Halliburton Energy Services, Inc. | Distributed acoustic sensing system with variable spatial resolution |
| US10337316B2 (en) | 2013-08-30 | 2019-07-02 | Halliburton Energy Services, Inc. | Distributed acoustic sensing system with variable spatial resolution |
| US10667692B2 (en) * | 2015-11-12 | 2020-06-02 | The Johns Hopkins University | Coherent optical imaging for detecting neural signatures and medical imaging applications using common-path coherent optical techniques |
| US10107615B2 (en) | 2016-04-20 | 2018-10-23 | Quality Vision International, Inc. | Remote probe for optical measuring machine |
| US10107614B1 (en) | 2017-04-18 | 2018-10-23 | Quality Vision International, Inc. | Optical pen for interferometric measuring machine |
| DE102017218086A1 (de) | 2017-10-11 | 2019-04-11 | Carl Zeiss Industrielle Messtechnik Gmbh | Antastelement und Koordinatenmessgerät zur Vermessung mindestens eines Messobjekts |
| EP3789727B1 (en) * | 2019-09-04 | 2024-04-10 | Taylor Hobson Limited | Interferometric measuring device |
| CN112129243B (zh) * | 2020-09-04 | 2022-02-15 | 电子科技大学 | 基于光电振荡器的准分布式光纤扭转角度测量装置和方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6134003A (en) * | 1991-04-29 | 2000-10-17 | Massachusetts Institute Of Technology | Method and apparatus for performing optical measurements using a fiber optic imaging guidewire, catheter or endoscope |
| DE4244605A1 (de) * | 1992-05-27 | 1993-12-02 | Hewlett Packard Co | Optisches Niederkohärenzreflektometer von verbesserter Empfindlichkeit mit optischer Dämpfung |
| DE19520305C2 (de) * | 1995-06-02 | 1997-04-17 | Fraunhofer Ges Forschung | Verfahren und Meßvorrichtung zur interferometrischen Abstandsmessung |
| US5781297A (en) | 1996-08-23 | 1998-07-14 | M&M Precision Systems Corporation | Mixed frequency and amplitude modulated fiber optic heterodyne interferometer for distance measurement |
| DE19721883C2 (de) * | 1997-05-26 | 1999-04-15 | Bosch Gmbh Robert | Interferometrische Meßvorrichtung |
| DE19738900B4 (de) * | 1997-09-05 | 2005-07-14 | Robert Bosch Gmbh | Interferometrische Meßvorrichtung zur Formvermessung an rauhen Oberflächen |
| DE19808273A1 (de) * | 1998-02-27 | 1999-09-09 | Bosch Gmbh Robert | Interferometrische Meßeinrichtung zum Erfassen der Form oder des Abstandes insbesondere rauher Oberflächen |
| DE19819762A1 (de) * | 1998-05-04 | 1999-11-25 | Bosch Gmbh Robert | Interferometrische Meßeinrichtung |
| DE10057540A1 (de) * | 2000-11-20 | 2002-06-06 | Bosch Gmbh Robert | Interferometrische Messvorrichtung |
| DE10057539B4 (de) * | 2000-11-20 | 2008-06-12 | Robert Bosch Gmbh | Interferometrische Messvorrichtung |
| US7283247B2 (en) * | 2002-09-25 | 2007-10-16 | Olympus Corporation | Optical probe system |
-
2002
- 2002-09-25 DE DE10244553A patent/DE10244553B3/de not_active Expired - Fee Related
-
2003
- 2003-03-28 CN CNB038228319A patent/CN1294401C/zh not_active Expired - Fee Related
- 2003-03-28 JP JP2004538674A patent/JP2006500571A/ja active Pending
- 2003-03-28 US US10/527,935 patent/US7400408B2/en not_active Expired - Fee Related
- 2003-03-28 WO PCT/DE2003/001032 patent/WO2004029544A1/de not_active Ceased
- 2003-03-28 EP EP03720249A patent/EP1546646A1/de not_active Withdrawn
- 2003-03-28 BR BR0314774-6A patent/BR0314774A/pt not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1685196A (zh) | 2005-10-19 |
| DE10244553B3 (de) | 2004-02-05 |
| JP2006500571A (ja) | 2006-01-05 |
| US20060238771A1 (en) | 2006-10-26 |
| CN1294401C (zh) | 2007-01-10 |
| EP1546646A1 (de) | 2005-06-29 |
| WO2004029544A1 (de) | 2004-04-08 |
| US7400408B2 (en) | 2008-07-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B08F | Application fees: application dismissed [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 3A ANUIDA DE. |
|
| B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2077 DE 26/10/2010. |