Sch"after+Kirchhoff SK1024U3PD Manual de usuario descargar pdf (Pagina 9)

USB3_ZK.indd • Page 22

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11-2014 E

The LED on the rear of the camera casing glows red

when the camera is plugged into a computer USB

socket supplying sufficient power. No red light

means that the camera requires an external source

of power. A first-time installation is detected by the

System Manager with a request to install the requi-

site driver, which is automatically installed from the

supplied CD SK91USB3-WIN. The correct installati-

on produces a System Manager entry for

Schäfter+Kirchhoff – Line Scan Camera

under

USB Controller. The camera casing LED should now

glow green and the USB line scan camera is now

ready for use.

Installation of the USB line scan camera

Intel(R) 82801EB USB Universal Host Controller - 24DE

Schaefter+Kirchhoff - Line Scan Camera

Standard extended PCI-to-USB Universal Host Controller

USB line scan cameras and LabVIEW

LabVIEW VI library

and applications

NI Vision support

The USB software package SK91USB3-WIN

for Windows 7 and SK91USB-LX for Linux

include the SkLineScan

software which

enables the instant startup of the USB line

scan camera ‘out-of-the-box’. A software

development kit (SDK), with DLLs and a class

library for C++, offers a convenient method

for producing individual user applications

according to need.

The provided sample programs in C/C++ can

be used as templates for the development of

customized applications. Source comments

and a manual facilitate the

customized programming

of the cameras.

The SkLineScan soft-

ware instantly re cog nizes

the connected USB line

scan camera and indi-

cates the camera type.

Oscilloscope display

With tools for adjustment

of focus and aperture, for

evaluating the field flat-

tening of the lens and for

aligning the illumination

and sensor correctly.

Zoom function

Each in dividual camera

pixel can be zoomed into.

Online parameterization

of the line scan camera

uses pop-up dialogs, with

changes implemented im-

mediately for ‘real-time’

response control.

USB camera control

For adjusting integration

time, line frequency, and

synchronization mode.

'About SkLineScan' shows camera information

Oscilloscope display of line scan signal

Zoomed part of scan for 512 pixels

Scan object as a 2-dimensional image

Camera control for integration time, sync mode

Generating a 2-dimensional image

USB software package SK91USB3-WIN, SK91USB-LX

USB 3.0 SK2048U3SD

Signal window: pixel 0 - 2048 Zoom: displayed 2048 from 2048

Signal window: pixel 0 - 2048 Zoom: displayed 512 from 2048

Generating images

Initialize the camera

Allocate memory in the user area

Release memory

Set pointer to user buffer

struct sk_interface

Csk – Base class

Communication structure for the driver

::Camera

::AllocBuffer

::FreeBuffer

::SetUserBufferPtr

::SetIntegrationTime

::SetLineFrequency

::SetSyncMode

::SetGain

::SetOffset

Set integration time (ms)

Set line frequency (kHz)

Set synchronization mode

Set camera gain

Set camera offset

Name of current camera

Number of current camera pixels

Current line frequency in kHz

Pointer to data set in user memory

::GetCamType

::GetPixWidth

::GetLineFrequency

::GetUserBufferPtr

::LineScanView

::AreaScanView

CskInit : Csk – Initializing class

CskCtrl : Csk – Control class

::SingleLineScan

::AreaScan

::ContinuousGrab

::GetImage

::StopContinuousGrab

Get a single line scan

Acquire a 2D scan

Start continuous grab

Get single image from a continuous grab

Stop continuous grab

CskRecord : Csk – Acquisition class

CskView : Csk – View class

Display a line scan signal

Display an area scan

CskInfo : Csk – Information class

C++ class library *

)

SDK for USB line scan cameras

)

Examples from the class library containing more than 60

methods for controlling the USB line scan camera

USB 3.0 SK2048U3SD: 2

SkLineScan USB 3.0 SK2048U3SD

Software for USB line scan cameras

Order code Operating System

SK91USB3-Win Windows 7 x86/x64

SK91USB-Win Windows XP/2000

SkLineScan Control program

SDK with DLLs and C++ class library

SK91USB3 -LV Windows/Labview

SK91USB-LX Linux 2.4/2.6

For a given object velocity the line frequency

must be adjusted to provide an image with the

correct aspect ratio, where:

= object scan velocity

= pixel width

= line frequency

S = sensor length

FOV = field of view

ß = magnification ( = S / FOV)

CCD Sensor

Object

FOV

/ ß

Pixel #1

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 23 24

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