公开(公告)号：CA2116874A1

公开(公告)日：1993-03-18

申请号：CA2116874

申请日：1992-09-02

Applicant: COMMW SCIENT IND RES ORG

Inventor： CANTRALL CHRISTOPHER J ,  DABBS TIMOTHY P ,  GLASS MONTY ,  HUMPHRIES WILLIAM ,  WILLS LESLIE J

IPC: G01B11/02 ,  G01B11/04 ,  G01B11/06 ,  G01B11/08 ,  G01B11/10 ,  G01B11/16 ,  G01B11/24 ,  G01B11/245 ,  G01B11/26 ,  G01B11/28 ,  G01B11/30 ,  G01B13/04 ,  G01B13/08 ,  G01B15/00 ,  G01B15/02 ,  G01B15/04 ,  G01B15/06 ,  G01B17/00 ,  G01B17/02 ,  G01B17/04 ,  G01B21/00 ,  G01D21/00 ,  G01N9/24 ,  G01N13/02 ,  G01N15/00 ,  G01N15/02 ,  G01N15/14 ,  G01N17/04 ,  G01N21/00 ,  G01N21/17 ,  G01N21/25 ,  G01N21/27 ,  G01N21/39 ,  G01N21/47 ,  G01N21/55 ,  G01N21/59 ,  G01N21/64 ,  G01N21/65 ,  G01N21/84 ,  G01N21/87 ,  G01N21/88 ,  G01N22/00 ,  G01N22/02 ,  G01N23/02 ,  G01N23/18 ,  G01N23/20 ,  G01N29/04 ,  G01N33/36 ,  G01R27/26 ,  G06M11/00 ,  G01N21/41

Abstract: Disclosed is a method/apparatus to determine any one of a plurality of parameters: shape, area, chemical composition, diameter, colour, number, thickness, width, length, absorptivity, reflectivity, transmittivity, dielectric constant, raman scattering profile, fluorescence, surface tension, roughness, profile, density, position and orientation. Also use of a plurality of energy beams as source energy: charged and neutral particle beams, gamma-, X-, micro-, optical and acoustic waves. The described apparatus determines the mean and standard deviation of a plurality of diameters of wool fibres, and includes a He-Ne laser (101), and a pinhole (102) which produce an expanding laser beam which passes through cell (105). Beam splitter (103) is operatively disposed to pinhole (102) and laser (101) to direct a portion of the laser beam to reference detector (109) which is electrically connected to processor (110) via line (111). When apparatus (100) is operating wool fibres in an isopropanol-wool slurry pass through cell (105) generally at a non-zero degree angle to the direction of slurry flow through cell (105) to interact with the laser beam in cell (105). Beam splitter (104) and microscope objective (106) are operatively disposed with respect to laser (101), pinhole (102) and cell (105)to produce an in focus magnified transmission image of wool fibres in cell (105) in the plane of end (107) of optical fibre bundle (108). Each of the fibres in bundle (108) is connected to a photodiode detector (112). Processor/timer (113) is connected electrically to detector (112) by line (114). Processor/timer (113) is also connected electrically to computer (115) by line (116) and to processor (110) by line (117). Detector (118) is connected electrically to processor (110) by line (119). Processor (110) is connected electrically to computer (115) by line (120). Detector (118) is operatively disposed with respect to laser (101), pinhole (102) and cell (105) to detect outgoing light.

公开(公告)号：PL179078B1

公开(公告)日：2000-07-31

申请号：PL31701895

申请日：1995-04-27

Applicant: COMMW SCIENT IND RES ORG

Inventor： HUMPHRIES WILLIAM ,  CANTRALL CHRISTOPHER J ,  HOLCOMBE BARRY V ,  HIGGERSON GRAHAM J ,  CAFFIN ROGER N

IPC: D06H3/08 ,  G01B11/10 ,  G01J3/46 ,  G01N21/27 ,  G01N21/31 ,  G01N21/89 ,  G01N21/892 ,  G01N33/36

Abstract: A method and apparatus for determining a first parameter(s) of an object is disclosed. The apparatus includes means for locating the object (101), in a measurement interaction volume(s) (150, 151, 152, 153), a light absorbing background (100), operatively associated with the measurement interaction volume(s), at least one light source (120), for passing a measurement light beams(s) through the measurement interaction volume(s) to interact with the object (101), to produce measurement outgoing light, the measurement light beam(s) comprising at least two spectrally different wavelengths of light, at least one detector (108, 109, 110), to detect the at least two measurement spectrally different outgoing light portions (105, 106, 107) and to general signals therefrom, whereby the signals are a function of the first parameter(s), the detector(s) (105, 106, 107) being operatively associated with the light source, means for filtering the measurement outgoing light (102, 103, 104) from the measurement interaction volume(s0 into at least two measurement spectrally different outgoing light portions (105, 106, 107), the means for filtering being operatively associated with the light source(s) and/or the at least one detector, and means for determining the first parameter(s) from the signals (125), the means for determining being operatively associated with the detector.