JP2004354382A - 流れ開口面積を測定するための方法及び装置 - Google Patents
流れ開口面積を測定するための方法及び装置 Download PDFInfo
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- JP2004354382A JP2004354382A JP2004156987A JP2004156987A JP2004354382A JP 2004354382 A JP2004354382 A JP 2004354382A JP 2004156987 A JP2004156987 A JP 2004156987A JP 2004156987 A JP2004156987 A JP 2004156987A JP 2004354382 A JP2004354382 A JP 2004354382A
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- aperture
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Classifications
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- 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
- G01B11/28—Measuring arrangements characterised by the use of optical techniques for measuring areas
- G01B11/285—Measuring arrangements characterised by the use of optical techniques for measuring areas using photoelectric detection means
-
- 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
Abstract
【解決手段】 本方法は、開口に隣接させて照明源(216)を位置決めする段階(402)と、開口を囲む周界部を照明する段階(404)と、照明した境界線の画像をサンプリングする段階(406)と、受信した境界線内の面積を計算する段階(408)とを含む。本システムは、開口周界部の第1の部分(208)と交差する第1の光のシート(220)を投射しかつ開口周界部の第2の部分(210)と交差する第2の光のシート(222)を投射するように配向された光源(216)と、物体の開口周界部と交差しかつ光検出器に向かって反射された光のシートの部分を受信する光検出器(224)と、該検出器からの画像をサンプリングする画像処理プロセッサ(226)とを含む。
【選択図】 図2
Description
200 測定装置
202 ノズルスロート開口面積
204 開口の第1の壁
206 開口の第2の壁
208 第1の壁の後端縁
210 横線
212 第2の壁の内面
214 離間距離
216 レーザ
218 レンズ及びミラーの組合せ
220 第1の光シート
222 第2の光シート
224 光センサ
225 センサ位置合せ固定具
226 画像処理プロセッサ
230 測定装置の本体
236 位置合せフィンガ
244 フィンガの係合部分
248 ショルダ部
252 ショルダ部の接触端部
Claims (10)
- 光センサシステム(200)を用いて物体(38)内に画成された開口(202)を測定する方法(400)であって、
前記開口に隣接させて照明源(216)を位置決めする段階(402)と、
前記開口を囲む周界部を照明する段階(404)と、
前記照明した周界部の画像をサンプリングする段階(406)と、
前記サンプリング画像から受信した境界線内の面積を計算する段階(408)と、
を含む方法。 - 照明源を位置決めする段階が、前記照明源に結合された位置合せフィンガ(236)が前記開口の境界となる表面に係合するように、該照明源を位置決めする段階を含む、請求項1記載の方法。
- 前記開口を囲む周界部を照明する段階が、
第1の光シート(220)で前記開口周界部の第1の部分(208)を照明する段階と、
第2の光シート(222)で前記開口周界部の第2の部分(210)を照明する段階と、
を含む、請求項1記載の方法。 - 前記開口周界部の第1の部分を照明する段階が、前記開口周界部の第1の部分にほぼ平行な平面内に配向された光のシートを投射する光源で前記開口の第1の部分を照明する段階を含む、請求項3記載の方法。
- 前記照明した周界部をサンプリングする段階が、各光シートと前記物体の開口周界部との間の交差位置に形成された照明線をサンプリングする段階を含む、請求項1記載の方法。
- 照明線をサンプリングする段階が、光学受信機(224)を用いて各照明線を受信する段階を含む、請求項5記載の方法。
- 各照明線をサンプリングする段階が、各線をフィルタ処理して実質的に全非照明線照明を受信するのを防止することを可能にする段階を含む、請求項5記載の方法。
- 受信した周界部内の面積を計算する段階が、前記受信周界部内に定まる最小面積を計算する段階を含む、請求項1記載の方法。
- 受信した周界部内の面積を計算する段階が、受信したビデオ画像をデジタル化する段階を含む、請求項1記載の方法。
- 前記デジタル化した画像から2次元座標情報を取り出す段階と、
前記受信周界部内の座標を求める段階と、
をさらに含む、請求項9記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/446,295 | 2003-05-28 | ||
US10/446,295 US7099017B2 (en) | 2003-05-28 | 2003-05-28 | Methods and apparatus for measuring flow opening areas |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004354382A true JP2004354382A (ja) | 2004-12-16 |
JP5138148B2 JP5138148B2 (ja) | 2013-02-06 |
Family
ID=33131559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004156987A Expired - Fee Related JP5138148B2 (ja) | 2003-05-28 | 2004-05-27 | 流れ開口面積を測定するための方法及び装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7099017B2 (ja) |
EP (1) | EP1482275B1 (ja) |
JP (1) | JP5138148B2 (ja) |
BR (1) | BRPI0402109A (ja) |
CA (1) | CA2467124C (ja) |
SG (1) | SG120161A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007139776A (ja) * | 2005-11-15 | 2007-06-07 | General Electric Co <Ge> | 光学式エッジ急変部ゲージ |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2389484A1 (en) * | 2002-06-06 | 2003-12-06 | Pratt & Whitney Canada Inc. | Optical measuremnet of vane ring throat area |
US7305118B2 (en) * | 2004-10-22 | 2007-12-04 | Pratt & Whitney Canada Corp. | Illumination system for measurement system |
US6945124B1 (en) | 2004-10-22 | 2005-09-20 | Pratt & Whitney Canada Corp. | Measurement system |
US7499830B2 (en) | 2005-11-15 | 2009-03-03 | General Electric Company | Computer-implemented techniques and system for characterizing geometric parameters of an edge break in a machined part |
EP1835150A1 (de) * | 2006-03-17 | 2007-09-19 | Siemens Aktiengesellschaft | Verfahren zur Inspektion einer Turbinenanlage sowie Vorrichtung hierzu |
US8432440B2 (en) * | 2009-02-27 | 2013-04-30 | General Electric Company | System and method for adjusting engine parameters based on flame visualization |
US8528207B2 (en) | 2010-08-19 | 2013-09-10 | Rolls-Royce Corporation | Variable vane calibration method |
US20140142889A1 (en) * | 2012-09-28 | 2014-05-22 | United Technologies Corporation | Throat Area Calculation for a Section of a Gas Turbine Engine |
US20170138820A1 (en) * | 2015-11-16 | 2017-05-18 | General Electric Company | Systems and methods for monitoring components |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04301707A (ja) * | 1991-03-29 | 1992-10-26 | Aisin Seiki Co Ltd | 非接触容積測定装置 |
US5517310A (en) * | 1994-06-30 | 1996-05-14 | Solar Turbines Incorporated | Method and apparatus for obtaining and analyzing an image of a elongate slot |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US3773422A (en) * | 1971-04-07 | 1973-11-20 | Singer Co | Calculating linear dimensions from tv images |
US4498776A (en) * | 1982-08-23 | 1985-02-12 | General Motors Corporation | Electro-optical method and apparatus for measuring the fit of adjacent surfaces |
DE3313932A1 (de) | 1983-04-16 | 1984-10-18 | Ed. Züblin AG, 7000 Stuttgart | Verfahren zur beruehrungslosen vermessung von innenprofilen eines hohlraumes sowie vorrichtung zur durchfuehrung eines solchen verfahrens |
JPS6091204A (ja) * | 1983-10-26 | 1985-05-22 | Mitsubishi Electric Corp | テレビ画像による面積測定装置 |
JPS62182604A (ja) * | 1986-02-06 | 1987-08-11 | Mitsubishi Heavy Ind Ltd | 翼列の自動計測装置 |
US4741621A (en) * | 1986-08-18 | 1988-05-03 | Westinghouse Electric Corp. | Geometric surface inspection system with dual overlap light stripe generator |
US4767272A (en) * | 1987-10-14 | 1988-08-30 | United Technologies Corporation | Method for reducing blade tip variation of a bladed rotor |
US5436462A (en) * | 1993-12-21 | 1995-07-25 | United Technologies Optical Systems | Video contour measurement system employing moire interferometry having a beat frequency pattern |
DE19506167A1 (de) * | 1995-02-22 | 1996-08-29 | Siemens Ag | Verfahren und Einrichtung zum Bestimmen der Innengeometrie eines Bauteiles |
DE19506526A1 (de) | 1995-02-24 | 1996-08-29 | Siemens Ag | Verfahren zum Erkennen eines Oberflächendefekts an einem Bauteil |
CA2389484A1 (en) * | 2002-06-06 | 2003-12-06 | Pratt & Whitney Canada Inc. | Optical measuremnet of vane ring throat area |
-
2003
- 2003-05-28 US US10/446,295 patent/US7099017B2/en active Active
-
2004
- 2004-05-13 CA CA2467124A patent/CA2467124C/en not_active Expired - Fee Related
- 2004-05-27 EP EP04253119.4A patent/EP1482275B1/en not_active Expired - Fee Related
- 2004-05-27 BR BR0402109-6A patent/BRPI0402109A/pt not_active IP Right Cessation
- 2004-05-27 JP JP2004156987A patent/JP5138148B2/ja not_active Expired - Fee Related
- 2004-05-28 SG SG200403033A patent/SG120161A1/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04301707A (ja) * | 1991-03-29 | 1992-10-26 | Aisin Seiki Co Ltd | 非接触容積測定装置 |
US5517310A (en) * | 1994-06-30 | 1996-05-14 | Solar Turbines Incorporated | Method and apparatus for obtaining and analyzing an image of a elongate slot |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007139776A (ja) * | 2005-11-15 | 2007-06-07 | General Electric Co <Ge> | 光学式エッジ急変部ゲージ |
Also Published As
Publication number | Publication date |
---|---|
EP1482275A1 (en) | 2004-12-01 |
SG120161A1 (en) | 2006-03-28 |
US7099017B2 (en) | 2006-08-29 |
US20040239948A1 (en) | 2004-12-02 |
BRPI0402109A (pt) | 2005-02-22 |
CA2467124A1 (en) | 2004-11-28 |
JP5138148B2 (ja) | 2013-02-06 |
EP1482275B1 (en) | 2016-03-23 |
CA2467124C (en) | 2010-02-09 |
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