Idec DATAVS1 Series Manuale Utente Scaricare il pdf (Pagina 10)

Instruction Manual SVS1 Series

The Teach button functions will be explained in more detail successively (Chapter 8).

4.2. Installing the sensor

The corre

ct position of the vision sensor is essential in order to function properly. There are various

aspects to be considered during installation, which have to be evaluated. The following chart

summarises the main aspects to consider regarding positioning.

Aspect Position suggestions

Field of view The dimension of the range acquired by the sensor varies according

to the distance from the target object to be inspected (see Chapt. 3).

For this reason, the sensor should be placed at a distance which

allows it to focus and observe the entire target object to be inspected.

Resolution On the contrary to the field range dimension concept, the resolution of

the image acquired by the sensor decreases as the distance from the

target object increases. This is because the sensor acquires an

image with 640x480 pixels. Increasing the focus range, decreases the

number of pixels per unit.

The image to the right shows better resolution compared to the one

on the right. The 640 pixels along the horizontal axis are in fact

entirely "dedicated" to writing. In the first image, however, only half of

them define the logo.

Lighting Environmental lighting generally creates a source of disturbance. It

can in fact vary, (e.g. the natural light that shines through a window

can vary in intensity throughout the day) and can therefore

compromise the results of repeated control procedures. It is therefore

highly recommended to minimise the influence of environmental

lighting in the sensor focus range. Please refer to the tutorial (

) for

further information on industrial lighting.

640 pixel 640 pixel

480 pixel

TEACH-IN

BUTTON

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 82 83

Nessun commento

Idec DATAVS1 Series Manuale Utente Pagina 10