公开(公告)号：US3517190A

公开(公告)日：1970-06-23

申请号：US3517190D

申请日：1967-12-01

Applicant: BARNES ENG CO

Inventor： ASTHEIMER ROBERT W

IPC: G01N21/53 ,  G01N21/26

CPC classification number: G01N21/53 ,  F23N2041/12

公开(公告)号：US3480777A

公开(公告)日：1969-11-25

申请号：US3480777D

申请日：1969-02-28

Applicant: BARNES ENG CO

Inventor： ASTHEIMER ROBERT W

IPC: G01J5/34 ,  G01K7/00 ,  G02F2/00 ,  G01T1/16

CPC classification number: G01K7/003 ,  G01J5/34 ,  G02F2/00

公开(公告)号：US3413468A

公开(公告)日：1968-11-26

申请号：US52716366

申请日：1966-02-14

Applicant: BARNES ENG CO

Inventor： ASTHEIMER ROBERT W

IPC: G01J1/04 ,  G01J5/08 ,  H01L31/0232

CPC classification number: G01J1/0407 ,  G01J1/04 ,  G01J1/0422 ,  G01J5/08 ,  G01J5/0809 ,  G01J5/0815 ,  G01J5/0862 ,  H01L31/02327

公开(公告)号：US3137170A

公开(公告)日：1964-06-16

申请号：US3829960

申请日：1960-06-23

Applicant: BARNES ENG CO

Inventor： ASTHEIMER ROBERT W

IPC: G01J5/60

CPC classification number: G01J5/60

公开(公告)号：US3402295A

公开(公告)日：1968-09-17

申请号：US44869465

申请日：1965-04-16

Applicant: BARNES ENG CO

Inventor： ASTHEIMER ROBERT W

IPC: G01C3/00 ,  G01J5/00 ,  G01J5/60 ,  G01S11/12

CPC classification number: G01S11/12 ,  G01C3/00 ,  G01J5/007 ,  G01J5/04 ,  G01J5/08 ,  G01J5/0862 ,  G01J5/601

公开(公告)号：US3090869A

公开(公告)日：1963-05-21

申请号：US11268761

申请日：1961-05-25

Applicant: BARNES ENG CO

Inventor： ASTHEIMER ROBERT W

IPC: F41G7/30 ,  G01S3/787

CPC classification number: F41G7/303 ,  G01S3/787

公开(公告)号：US3084253A

公开(公告)日：1963-04-02

申请号：US5417360

申请日：1960-09-06

Applicant: BARNES ENG CO

Inventor： MCHENRY THOMAS F ,  ASTHEIMER ROBERT W

IPC: G01J1/16 ,  G01J1/44 ,  G01J3/28 ,  G01J3/51 ,  G01J5/00 ,  G01J5/60 ,  G01N21/27 ,  G01N21/31 ,  G01N21/35

CPC classification number: G01J3/28 ,  G01J1/16 ,  G01J3/0232 ,  G01J3/501 ,  G01J3/502 ,  G01J3/51 ,  G01J3/524 ,  G01J5/602 ,  G01J2001/4242 ,  G01J2003/2826 ,  G01J2005/0048 ,  G01N21/274 ,  G01N21/314 ,  G01N2021/317 ,  G01N2021/3531

公开(公告)号：US3003026A

公开(公告)日：1961-10-03

申请号：US1312460

申请日：1960-03-07

Applicant: BARNES ENG CO

Inventor： ASTHEIMER ROBERT W

IPC: H04N1/40 ,  H04N3/02 ,  H04N3/34 ,  H04N5/33

CPC classification number: H04N1/40056 ,  H04N3/02 ,  H04N3/34 ,  H04N5/33

公开(公告)号：US3602596A

公开(公告)日：1971-08-31

申请号：US3602596D

申请日：1968-04-05

Applicant: BARNES ENG CO

Inventor： ASTHEIMER ROBERT W ,  WEISS MORRIS ,  VILLERS PHILIPPE

IPC: G01B11/30 ,  G01N21/34

CPC classification number: G01B11/303

Abstract: A roughness meter for measuring r.m.s. roughness, especially in the range from about 1-5 Mu in., the meter providing a choice of at least two wavelength bands of illumination, at least one being in the infrared. The wavelength of illumination, or more precisely the reflected radiation, is preferably from 20-50 times the r.m.s. roughness. The radiation is reflected onto various curved surfaces, such as toroidal surfaces of ball bearing races. In every case a reflecting surface is used which causes the beam of radiation to strike all points of the surface at substantially normal incidence, and there is in the beam path no material which has a significant refractive index which is wavelength dependent. Air is preferred. Reflected light is detected and an electrical output is produced which is a measure of the r.m.s. reflectance. The reflecting surface may be a portion of an ellipsoid or a parabolaoid. In the first case the beam of radiation is focused at one of the conjugate foci of the ellipse and the bearing space is accurately positioned so that the center of its curvature is at the other conjugate focus. In the case of a parabola, of course, collimated light is used.

公开(公告)号：US3548194A

公开(公告)日：1970-12-15

申请号：US3548194D

申请日：1969-02-26

Applicant: BARNES ENG CO

Inventor： ASTHEIMER ROBERT W

IPC: B64D45/00 ,  G01S3/783 ,  G01S3/789 ,  G01P13/00

CPC classification number: G01S3/789 ,  G01S3/783