Ametek LAND LSP HD Series - 2.4 Scan Widths and Target Size; Width, Path Calculations, and Target Size

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User Guide LSPHD Linescanner Head
2.4 Scan Widths and Target Size
2.4.1 Scan Width
ThefullscananglefortheLSPScanneris80°,andtheScanWidth(SW)canbe
calculated as:
 SW=(TD+35)x1.678mm
or
 SW=(TD+1.38)x1.678inches
 Where‘TD’istheperpendicularTargetDistancebetweentheLSPwindowandthe
target plane.
Atthescanangleextremes(±40°)thelengthoftheTargetPath(TP)betweenthe
scanner and the target is:
 TP=(TD+35)/0.766mm
or
 TP=(TD+1.38)/0.766inches
Note
Theactivescananglemaybesetintherange40to80°.SeetheLandscan
CongurationorWCAsoftwareguidesforfurtherinformation.
2.4.2 Target Size
ThecalculatedTargetSizeisstrictlyonlycircularatascanangleofzerodegrees,i.e.
perpendicular to the instrument.
Atallotherscanangles,thetargetspotwillbeanellipse.Theellipticaltargetsizeis
showninthefollowingtablesforthescanangleextremes(±40°).