OPTRONIC LVMC, Руководство пользователя, Страница: 61 / 97

Interface A2, Release Date: 02.03.2022 Page 61 LVMC User Manul A2 - 499.027.82
OPTRONIC AG
SWITZERLAND Unteregger Strasse 53
CH-9403 Goldach Phone: +41 (0)71 844 02 00
Fax:
+41 (0)71 844 02 10
e-mail: support@optronic.ch
web: www.optronic.ch
5.12.1 Captured Sensor Image
The captured image of the last object detected is displayed on the left side of the analysis page. Objects
larger than the size entered under “Minimum Required Object Size” on the configuration page are detected
The sensor measures the extent of the object passing through the sensing area every 30us and compiles
these measured values into a pseudo-two-dimensional image. “Pseudo-two-dimensional” because the inte-
grated sensor can not detect information about the position of the object.
The horizontal axis shows the object size, the vertical axis the elapsed time. The scaling of the horizontal
axis can either be fixed or automatically adapted to the size of the captured object. The fixed scaling is de-
termined on the basis of the minimum object sizes specified on the configuration page. The vertical axis is
always automatically scaled based on the passing time of the captured object. The goal is to visualize the
complete object without much time before and after.
The user has the choice whether the captured image should be displayed left-aligned or centered. The cen-
tered mode can be used to display symmetrical objects, such as a screw that has passed vertically through
the sensing area, as realistically as possible.
In the left-justified view, it is possible to activate the display of auxiliary lines: A grid can be placed over the
sensor image, and it is possible to visualize either the specified or the applied detection limits. Basically, the
global detection limit exists, which is entered on the configuration page under “Minimum Required Object
Size”. In addition, a detection limit must be specified for each channel in entries “Minimum Size” on the con-
figuration page. Internally, the LVMC does not directly use these values, but uses them to calculate the ap-
plied detection limits. This is necessary to take into account the measurement inaccuracy of the light curtain.
The applied detection limits of the channels are displayed on the status page under „Detection Size“. In the
“Settings” section on the analysis page, it can be selected whether the specified or the applied detection
limits should be visualized. The global detection limit is displayed as a red vertical line. It is marked with a
red “
^ ”. The detection limits of the channels are represented by blue hatched vertical lines. These lines are
marked with a blue letter “ C ” followed by the channel number 1 .. 4 in blue.