Sch"after+Kirchhoff SK1024U3PD Manual do Utilizador descarregar pdf (Página 6)

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11-2014 E

Particle size and stratigraphy scanners in polar research

Line scan camera with integrated bright-field illumination

Plug Scanner SK-4080-GigE Color… Gold, Diamond and Oil Sniffer

Scan of an ice core

obtained from Ant arctica

at a depth of 60 m. The

light gra nular structure

and dark gas bubbles are

clearly discernable.

• 41 mm field

of view

• 5 μm resolution

• 3 μm limit of

detection for

grain boundaries

• 36 mm/s scan

velocity

A special development for:

Alfred-Wegener-Institute

for Polar and Marine

Research

Color

One-click zooming

For automated drill core inspection:

the color line scan camera SK12240GKOC-LB,

3 x 4080 pixel (RGB)

• Optical resolution of 1360 dpi

• For object diameters of 1"– 2" up to a length of 75 mm

The collection of ice

cores from the Green-

land ice sheet, under

the auspices of the

(NEEM) North Green-

land Eemian Ice Dril-

ling project, was suc-

cessfully completed in July 2010, after

3 years, when the drill-head hit bedrock.

The ice cores from depths of up to

2.5 km provide a record of the past cli-

mate covering more than 120 000 years.

The LASM scanner (left) was specially

developed for documenting the fine

structure of the ice cores and to deter-

mine the sizes of the ice granules and

enclosed bubbles. The ILCS scanner

(right) was developed for documenting

the stratigraphy and dating of the ice

cores. All of the mechanical, electronic

and optical components were specially

developed for use in the NEEM camp at

temperatures down to -40°C.

LASM:

Large area scan

macroscope using

bright-field

illumination

ILCS: Stratigraphy scanner using

dark-field illumination

A novel development in automated

surface inspection and analysis:

The application of increasingly sophis-

ticated illumination techniques for the

The bore plug scan-

ner SK-4080-GigE

Color was spe cially

developed as a fully

mobile surface-

scanning macros-

cope by Schäf ter+Kirchhoff for the in-

vestigation of smooth and cylindrical

objects, such as ice bore plugs.

Features:

• Rapid and precise exchange of test

objects by using two rotating sup-

ports

• Simple adjustment of focus for

objects with different diameters

• A surface scan by simply pressing

a switch or a mouse button

• Automatic white

balance

• One-click zoo-

ming for 1:1

depictions

• Printing

and saving

of total or

zoomed

sections

• The Gigabit

Ethernet interface

makes the place-

ment of the scanner

highly flexible, so

that it can be used

almost any where

Color line scan

camera

SK12240GKOC-LB

macro lens

lens protective

casing

illumination

(2 linear white

LEDs)

driven rotator

bore plug object

Ø1.5”, length 3"

passive rotator

stand and

housing for motor

and electronics

Transportation

to the Neem Camp

Automated surface and texture inspection of flat and rotating objects

Imprint testing Microembossing Paint damage Crack detection

1.0

0.0

400 600

800 1000

Spectral range

512–8192 pixels

B/W cameras

For details: see catalog pages 52–53

For details: see catalog pages 50, 56

For details: see catalog page 35

Cardiology

enhancement of specific object fea-

tures is routine in microscopy.

High-contrast image acquisition of

structured objects: making the invisible

visible. Illumination and image

acquisition techniques that

exploit the object properties

emphasize the features

of real interest.

Cameras

96 x 4096 pixel

Dark-field illumination with a TDI line scan camera Wafer inspection

In industrial image

processing, dark-

field il lu mination is

particularly useful for

the examination of

highly reflecting surf-

aces. The light beam

is directed at the

surface of the test

object at a low angle

of incidence, so that

the light is undetected

by the camera when

reflected from a

perfect surface.

With an immaculate

surface, a scanned

object appears totally

dark. When there are surface

irregularities caused by some damage,

such as a scratch or a crack, or

contamination, such as dust, lint or

grease, then a small part of the incident

light is scattered diffusely, captured by

the lens and directed onto the sensor.

The tiniest of irregularities are observed

as light areas on a dark background.

The dark-field illumination of a reflective

surface produces quite faint images.

With conventional line scan cameras,

longer integration times have to be used

in comparison with directed bright-field

illumination or for image acquisition from

a diffusely reflecting object. Such low

sig nal amplitudes mean only low line

frequencies and scan velocities are

possible. The highly

amplified sensitivity of

TDI line scan cameras

make them particularly

suitable for dark-field

illumination, allowing

much higher scan and

measurement velo-

cities to be achieved

than are obtainable

with conventional technology.

Application fields:

Surface examination of highly reflective

materials, such as chips, wafers or

mirrored surfaces.

Highlighting of contours, scratches,

cracks, dust particles and dirt.

Dark-field

illumination

For the detection of re-

ﬂ ecting scratches and

particles down to the

submicron level .

For details: see catalog pages 30–31

VOLTA IC

Applications

ANALYSIS

WAFER

INSPECTION

DOCUMENTS

Line Scan Cameras

Some Examples from Research,

Analytical and Quality Control

Interfaces:

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

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