公开(公告)号：WO1990007705A1

公开(公告)日：1990-07-12

申请号：PCT/US1989005869

申请日：1989-12-22

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  VERONESI, William, A. ,  WEISE, Andrew, P. ,  REED, Robert, W. ,  RINGERMACHER, Harry, I.

IPC: G01N15/06

CPC classification number: G01V3/101

Abstract: An arrangement for detecting metallic particles carried by a fluid includes an elongated single turn coil (12) which surrounds an elongated passage (11) through which the fluid flows and has a length as considered in the longitudinal direction of the passage (11) that is at least equal to the diameter of the coil (12). Two longitudinally extending portions (13, 14) of the coil (12) delimit a gap (15) which extends along the passage (11) and completely physically separates the portions (13, 14). At least one capacitor (16) is arranged directly at the gap (15) and is electrically connected between the portions (13, 14) to form an electronic resonator circuit with the coil (12). The resonator circuit (12, 16) is driven at all times at its resonant frequency as influenced by the presence of metallic particles in the passage (11) and the operating temperature. The inductance to capacitance ratio of the resonator circuit (15, 16) has the value of at most one to four.

公开(公告)号：WO1994014108A1

公开(公告)日：1994-06-23

申请号：PCT/US1993010871

申请日：1993-11-10

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  REED, Robert, W. ,  KARTSEN, Douglas, A. ,  AKERLEY, Stevan, W.

IPC: G05B19/18

CPC classification number: G05B19/402 ,  G01B17/00 ,  G01M1/16 ,  G05B2219/37197 ,  G05B2219/37269 ,  G05B2219/37398 ,  G05B2219/37492 ,  G05B2219/37525 ,  G05B2219/49113 ,  G05B2219/50055 ,  G05B2219/50152 ,  Y10S82/903 ,  Y10T82/10

Abstract: A computer (21) processes the time between ultrasonic echoes received at a transducer (19) indicative of the outer radius and wall thickness of a workpiece (10) by subtracting (69) the weighted average (80-90) wall thickness from the weighted average outer radius to generate an internal radius for a large number of points around a spiral slice of the workpiece. The internal radii and angles are converted (69) to x and y coordinates. The centroid (X, Y) of each slice of data indicating workpiece cavity internal radii is determined (71) as twice the summation of the x coordinates and twice the summation of the y coordinates of all of the datum points of the slice. The least squares fit (73) of the X coordinates of the centroids of all of the slices and the least squares fit (74) of the Y coordinates of the centroids of all of the slices are then used to determine the average axis of the cavity of the workpiece. The X &cir& NOt and Y &cir& NOt coordinates of the end points of the average axis of the cavity are then converted (75) to polar coordinates to permit offsetting the end points of the workpiece commensurate amounts, whereby further machining will cause the internal cavity of the workpiece to end up more nearly centrally located, on average.

Abstract translation: 计算机（21）通过从加权平均值（80-90）中减去（69）加权平均（80-90）壁厚来处理在换能器（19）处接收的指示工件（10）的外径和壁厚之间的超声波回波之间的时间 平均外半径以产生围绕工件的螺旋切片的大量点的内半径。 将内部半径和角度（69）转换为x和y坐标。 确定表示工件腔内半径的每个切片数据的重心（X，Y）（71）是x坐标的和的两倍，并且是切片的所有基准点的y坐标的和的两倍。 所有切片的质心的X坐标的最小二乘拟合（73）和所有切片的质心的Y坐标的最小二乘拟合（74）然后用于确定腔的平均轴 的工件。 然后将空腔平均轴的端点的X＆cir＆NOt和Y＆cir＆NOt坐标转换（75）到极坐标，以允许偏移工件的端点相应的量，从而进一步加工将导致内腔 平均来说，工件最终更靠近中心位置。

公开(公告)号：WO1994014031A1

公开(公告)日：1994-06-23

申请号：PCT/US1993010829

申请日：1993-11-10

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  REED, Robert, W.

IPC: G01B17/02

CPC classification number: G01M1/16 ,  B23B1/00 ,  G01B17/00 ,  G05B2219/37525 ,  Y10S82/903 ,  Y10T82/10

Abstract: A computer (21) processes the time between ultrasonic echoes received at a transducer (19) indicative of the outer radius and wall thickness of a workpiece (10) by subtracting (69) the weighted average (80-90) wall thickness from the weighted average outer radius to generate an internal radius for a large number of points around a spiral slice of the workpiece. The internal radii and angles are converted (69) to x and y coordinates. The centroid (X, Y) of each slice of data indicating workpiece cavity internal radii is determined (71) as twice the summation of the x coordinates and twice the summation of the y coordinates of all of the datum points of the slice. The least squares fit (73) of the X coordinates of the centroids of all of the slices and the least squares fit (74) of the Y coordinates of the centroids of all of the slices are then used to determine the average axis of the cavity of the workpiece. The X &cir& NOt and Y &cir& NOt coordinates of the end points of the average axis of the cavity are then converted (75) to polar coordinates to permit offsetting the end points of the workpiece commensurate amounts, whereby further machining will cause the internal cavity of the workpiece to end up more nearly centrally located, on average.

Abstract translation: 计算机（21）通过从加权平均值（80-90）中减去（69）加权平均（80-90）壁厚来处理在换能器（19）处接收的指示工件（10）的外径和壁厚之间的超声波回波之间的时间 平均外半径以产生围绕工件的螺旋切片的大量点的内半径。 将内部半径和角度（69）转换为x和y坐标。 确定表示工件腔内半径的每个切片数据的重心（X，Y）（71）是x坐标的和的两倍，并且是切片的所有基准点的y坐标的和的两倍。 所有切片的质心的X坐标的最小二乘拟合（73）和所有切片的质心的Y坐标的最小二乘拟合（74）然后用于确定腔的平均轴 的工件。 然后将空腔平均轴的端点的X＆cir＆NOt和Y＆cir＆NOt坐标转换（75）到极坐标，以允许偏移工件的端点相应的量，从而进一步加工将导致内腔 平均来说，工件最终更靠近中心位置。

公开(公告)号：EP0672271B1

公开(公告)日：1998-07-01

申请号：EP94900610.0

申请日：1993-11-10

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： REED, Robert, W. ,  KARTSEN, Douglas, A. ,  AKERLEY, Stevan, W.

IPC: G05B19/18

CPC classification number: G05B19/402 ,  G01B17/00 ,  G01M1/16 ,  G05B2219/37197 ,  G05B2219/37269 ,  G05B2219/37398 ,  G05B2219/37492 ,  G05B2219/37525 ,  G05B2219/49113 ,  G05B2219/50055 ,  G05B2219/50152 ,  Y10S82/903 ,  Y10T82/10

Abstract: A computer (21) processes the time between ultrasonic echoes received at a transducer (19) indicative of the outer radius and wall thickness of a workpiece (10) by subtracting (69) the weighted average (80-90) wall thickness from the weighted average outer radius to generate an internal radius for a large number of points around a spiral slice of the workpiece. The internal radii and angles are converted (69) to x and y coordinates. The centroid (X, Y) of each slice of data indicating workpiece cavity internal radii is determined (71) as twice the summation of the x coordinates and twice the summation of the y coordinates of all of the datum points of the slice. The least squares fit (73) of the X coordinates of the centroids of all of the slices and the least squares fit (74) of the Y coordinates of the centroids of all of the slices are then used to determine the average axis of the cavity of the workpiece. The X^¨B7 and Y^¨B7 coordinates of the end points of the average axis of the cavity are then converted (75) to polar coordinates to permit offsetting the end points of the workpiece commensurate amounts, whereby further machining will cause the internal cavity of the workpiece to end up more nearly centrally located, on average.

公开(公告)号：EP0451209A1

公开(公告)日：1991-10-16

申请号：EP90901963.0

申请日：1989-12-22

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： VERONESI, William, A. ,  WEISE, Andrew, P. ,  REED, Robert, W. ,  RINGERMACHER, Harry, I.

IPC: G01N15 ,  G01N27 ,  G01V3

CPC classification number: G01V3/101

Abstract: L'agencement décrit, qui sert à détecter la présence de particules métalliques portées par un fluide comprend une bobine allongée à un seul enroulement (12), qui entoure un passage allongé (11) dans lequel s'écoule le fluide et dont la longueur considérée dans le sens longitudinal du passage (11), est au moins égale au diamètre de la bobine (12). Deux parties s'étendant longitudinalement (13, 14) de la bobine (12) délimitent un espace libre (15) qui s'étend le long du passage (11) et qui sépare physiquement complètement les deux parties (13, 14). Au moins un condensateur (16) est disposé directement dans l'espace libre (15) et est connecté électriquement entre les parties (13, 14) pour former avec la bobine (12) un circuit de résonateur électronique. Le circuit de résonateur (12, 16) est excité à sa fréquence de résonance, telle qu'elle est influencée par la présence de particules métalliques dans le passage (11) et par la température de fonctionnement. Le rapport inductance/capacitance du circuit du résonateur (15, 16) a une valeur maximale égale à 1/4.

公开(公告)号：EP0673501B1

公开(公告)日：1998-02-18

申请号：EP94900601.9

申请日：1993-11-10

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： REED, Robert, W.

IPC: G01B17/02

CPC classification number: G01M1/16 ,  B23B1/00 ,  G01B17/00 ,  G05B2219/37525 ,  Y10S82/903 ,  Y10T82/10

Abstract: A computer (21) processes the time between ultrasonic echoes received at a transducer (19) indicative of the outer radius and wall thickness of a workpiece (10) by subtracting (69) the weighted average (80-90) wall thickness from the weighted average outer radius to generate an internal radius for a large number of points around a spiral slice of the workpiece. The internal radii and angles are converted (69) to x and y coordinates. The centroid (X, Y) of each slice of data indicating workpiece cavity internal radii is determined (71) as twice the summation of the x coordinates and twice the summation of the y coordinates of all of the datum points of the slice. The least squares fit (73) of the X coordinates of the centroids of all of the slices and the least squares fit (74) of the Y coordinates of the centroids of all of the slices are then used to determine the average axis of the cavity of the workpiece. The X^¨B7 and Y^¨B7 coordinates of the end points of the average axis of the cavity are then converted (75) to polar coordinates to permit offsetting the end points of the workpiece commensurate amounts, whereby further machining will cause the internal cavity of the workpiece to end up more nearly centrally located, on average.

公开(公告)号：EP0673501A1

公开(公告)日：1995-09-27

申请号：EP94900601.0

申请日：1993-11-10

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： REED, Robert, W.

IPC: G01B17 ,  B23B1 ,  G01M1

CPC classification number: G01M1/16 ,  B23B1/00 ,  G01B17/00 ,  G05B2219/37525 ,  Y10S82/903 ,  Y10T82/10

Abstract: A computer (21) processes the time between ultrasonic echoes received at a transducer (19) indicative of the outer radius and wall thickness of a workpiece (10) by subtracting (69) the weighted average (80-90) wall thickness from the weighted average outer radius to generate an internal radius for a large number of points around a spiral slice of the workpiece. The internal radii and angles are converted (69) to x and y coordinates. The centroid (X, Y) of each slice of data indicating workpiece cavity internal radii is determined (71) as twice the summation of the x coordinates and twice the summation of the y coordinates of all of the datum points of the slice. The least squares fit (73) of the X coordinates of the centroids of all of the slices and the least squares fit (74) of the Y coordinates of the centroids of all of the slices are then used to determine the average axis of the cavity of the workpiece. The X^¨B7 and Y^¨B7 coordinates of the end points of the average axis of the cavity are then converted (75) to polar coordinates to permit offsetting the end points of the workpiece commensurate amounts, whereby further machining will cause the internal cavity of the workpiece to end up more nearly centrally located, on average.

公开(公告)号：EP0672271A1

公开(公告)日：1995-09-20

申请号：EP94900610.0

申请日：1993-11-10

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： REED, Robert, W. ,  KARTSEN, Douglas, A. ,  AKERLEY, Stevan, W.

IPC: B23Q15 ,  B23Q17 ,  G01B17 ,  G01M1 ,  G05B19

CPC classification number: G05B19/402 ,  G01B17/00 ,  G01M1/16 ,  G05B2219/37197 ,  G05B2219/37269 ,  G05B2219/37398 ,  G05B2219/37492 ,  G05B2219/37525 ,  G05B2219/49113 ,  G05B2219/50055 ,  G05B2219/50152 ,  Y10S82/903 ,  Y10T82/10

Abstract: A computer (21) processes the time between ultrasonic echoes received at a transducer (19) indicative of the outer radius and wall thickness of a workpiece (10) by subtracting (69) the weighted average (80-90) wall thickness from the weighted average outer radius to generate an internal radius for a large number of points around a spiral slice of the workpiece. The internal radii and angles are converted (69) to x and y coordinates. The centroid (X, Y) of each slice of data indicating workpiece cavity internal radii is determined (71) as twice the summation of the x coordinates and twice the summation of the y coordinates of all of the datum points of the slice. The least squares fit (73) of the X coordinates of the centroids of all of the slices and the least squares fit (74) of the Y coordinates of the centroids of all of the slices are then used to determine the average axis of the cavity of the workpiece. The X^¨B7 and Y^¨B7 coordinates of the end points of the average axis of the cavity are then converted (75) to polar coordinates to permit offsetting the end points of the workpiece commensurate amounts, whereby further machining will cause the internal cavity of the workpiece to end up more nearly centrally located, on average.

公开(公告)号：EP0451209B1

公开(公告)日：1994-08-10

申请号：EP90901963.0

申请日：1989-12-22

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： VERONESI, William, A. ,  WEISE, Andrew, P. ,  REED, Robert, W. ,  RINGERMACHER, Harry, I.

IPC: G01N15/06 ,  G01N27/02

CPC classification number: G01V3/101

Abstract: An arrangement for detecting metallic particles carried by a fluid includes an elongated single turn coil (12) which surrounds an elongated passage (11) through which the fluid flows and has a length as considered in the longitudinal direction of the passage (11) that is at least equal to the diameter of the coil (12). Two longitudinally extending portions (13, 14) of the coil (12) delimit a gap (15) which extends along the passage (11) and completely physically separates the portions (13, 14). At least one capacitor (16) is arranged directly at the gap (15) and is electrically connected between the portions (13, 14) to form an electronic resonator circuit with the coil (12). The resonator circuit (12, 16) is driven at all times at its resonant frequency as influenced by the presence of metallic particles in the passage (11) and the operating temperature. The inductance to capacitance ratio of the resonator circuit (15, 16) has the value of at most one to four.