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11.3 Optional - Measure Angle in polygon ROI (ProductType 1)

11.3 Optional - Measure Angle in polygon ROI (ProductType 1)

Calculating the ROI

NMZ = None measure zone [mm]
LML = Laser measure length [mm]

Len = (W + NMZ + LML) / cos(22.5°)

 

Back Sensor (Angle > 0, DieX > 0)

Front Sensor (Angle < 0, DieX < 0)

 

Back Sensor (Angle > 0, DieX > 0)

Front Sensor (Angle < 0, DieX < 0)

P0x

DieX + NMZ

DieX - NMZ

P0y

DieY

DieY

P1x

DieX + Len

DieX - Len

P1y

DieY

DieY

P2x

DieX + Len * cos(45°)

DieX - Len * cos(45°)

P2y

DieY + Len * cos(45°)

DieY + Len * cos(45°)

P3x

DieX - W

DieX + W

P3y

DieY + Len

DieY + Len

P4x

DieX - W

DieX + W

P4y

DieY + NMZ + W

DieY + NMZ + W

 

 

Necessary Parameter

Up to 8 polygon points (J00_PolygonNr) are possible.
Up to 4 jobs (J00-J03) at one image acquisition are possible (e. g. angle measurements in 4 ROIs). Typically you only need J00.

Product Parameter:

J00_ProductType = 1 J00_PolygonNr = 5 J00_PolygonPoint_X00_MM = S0x (Converted P0x, see 11.4 for converting) J00_PolygonPoint_Z00_MM = S0y (Converted P0y) J00_PolygonPoint_X01_MM = S1x (Converted P1x) J00_PolygonPoint_Z01_MM = S1y (Converted P1y) J00_PolygonPoint_X02_MM = S2x (Converted P2x) J00_PolygonPoint_Z02_MM = S2y (Converted P2y) J00_PolygonPoint_X03_MM = S3x (Converted P3x) J00_PolygonPoint_Z03_MM = S3y (Converted P3y) J00_PolygonPoint_X04_MM = S4x (Converted P4x) J00_PolygonPoint_Z04_MM = S4y (Converted P4y)

Maybe some more parameters. See chapter “Useful adjustable Parameters

Sensor Parameter:

DataMode = 8 NbrLines = -1

Maybe some more parameters. See chapter “Useful adjustable Parameters

Sensor result output of the angle detection

JOB 0.0001: Phi=156.36 Cx=00.4011 Cy=-0.9161 B=-0104.19 LAlgo=2 Points=0501 DetLen=042.6 Filter=100 dPhi=0.03 Error=0 Sh=0012us Gain=000 TimeStamp=0000006468167ms

Job: job number followed by ProductType
Phi: measured line angle [°]
Cx, Cy, B: general straight line equation
LAlgo: line algorithm mode (2 = combination of hough and best line)
Points: detected laser points
DetLen: measured line length [mm]
Filter: use x% of the closest detection points to the line for best line calculation
dPhi: expected angle accuracy
Error: error number
Sh: used shutter time [μs]
Gain: used gain value
TimeStamp: image acquisition time since camera power on [ms]