FIELD: quality control.
SUBSTANCE: invention relates to quality control, particularly, to optical control of hairy surface. Proposed method consists in directing radiation beam (B) towards analysed surface (2) of wood part (1) along axis (D) that makes an angle with normal to the said surface. Surface image is produced with the help of camera (8), wherein image plane (9) is formed by several optoelectronic light-sensitive pixels. Surface image of wood part translating relative to the said camera is shot at preset intervals, each image being produced in digital form. Data of two consecutive electronic images are mutually subtracted to make a set of difference data correlating with pixels and describing analysed wood surface. The said difference data is used to determine variation in analysed surface roughness.
EFFECT: higher accuracy of control irrespective of surface texture and particular properties.
11 cl, 9 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR OPTICAL INSPECTION OF OBJECT SURFACES FACING DIFFERENT SIDES | 2005 |
|
RU2389974C2 |
| METHOD FOR DETERMINING HAIRINESS COEFFICIENTS FOR CLOTH SHEETS ON BASIS OF COMPUTER IMAGE | 2004 |
|
RU2256177C1 |
| METHOD FOR IDENTIFYING OF PLANT KINDS | 2003 |
|
RU2242716C2 |
| METHOD OF DETECTING DIFFUSIVELY REFLECTED OR DIFFUSIVELY SCATTERED LASER RADIATION | 2011 |
|
RU2458361C1 |
| PHASE-INTERFERENCE MODULE | 2013 |
|
RU2539747C1 |
| METHOD OF CONTROLLING PYROLOGICAL STATE OF UNDERLYING SURFACE | 2015 |
|
RU2581783C1 |
| METHOD OF IDENTIFYING CENTER OF EARTHQUAKE | 2003 |
|
RU2242773C2 |
| METHOD OF COLLECTING AND PROCESSING X-RAY DIFFRACTION MICROTOMOGRAPHY DATA | 2023 |
|
RU2824297C1 |
| METHOD AND SYSTEM FOR DETECTING A DIAMOND IDENTIFIER | 2017 |
|
RU2702803C1 |
| METHOD FOR AUTOMATED DETERMINATION OF PARAMETERS OF DAMAGEABILITY GEOTEXTILE FABRIC DURING OPERATIONAL TESTING | 2015 |
|
RU2593341C1 |
