Zeiss Gom T-SCAN hawk Instructions for use

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Precise Industrial 3D Metrology
Hardware User Manual
T-SCAN hawk

Legal Notes
No part of this publication may be reproduced in any form or by any
means or used to make any derivative work (such as translations, transfor‐
mations or adaptations) without the prior written permission of GOM.
GOM reserves the right to revise this publication and change contents
from time to time without obligation on the part of GOM to provide noti‐
fication of such revision or change.
GOM provides this manual without warranty of any kind, either implied or
expressed, including, but not limited, to the implied warranties of mer‐
chantability and fitness for a particular purpose.
GOM may improve or change the manual and/or the product(s) described
herein at any time.
Copyright © 2019
GOM GmbH
Schmitzstr. 2
38122 Braunschweig
Germany
www.gom.com
Tel.: [phone]
Fax: [phone]
Email: [email protected]
All rights reserved
For further information on software licenses, refer to the direct help of the
GOM application software or the web interface of the GOM hardware.
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Table of Contents
Legal Notes.............................................. ......2
1 Important Notes...........................................5
1.1 Standard Signal Words......................... ......5
1.2 Safety and Health Hazard Notes..............5
2 Introduction...................................................7
3 Product Description.....................................8
4 System Overview.................................... ......9
4.1 Technical Data...............................................9
5 Information About the Sensor........... ...10
5.1 Sensor Configurations.......................... ... 10
6 Control Elements and LED Indica‐
tors............................................................. ... 12
7 Calibrate the Sensor.............................. ... 14
7.1 When is Calibration Necessary?......... ... 14
7.2 Calibrating Sensor with Calibration
Panel.......................................................... ... 15
7.3 Calibration Result................................... ... 16
8 Cabling......................................................... 18
8.1 Cabling with Laptop.................................18
9 Declaration of Conformity................... ...19
9.1 T-SCAN hawk Declaration of Con‐
formity.......................................................... 19
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1 Important Notes
1.1 Standard Signal Words
In this publication the following standard signal words can be used:
DANGER
▶The label points to an imminent danger. The situation can lead to seri‐
ous bodily harm or death!
WARNING
▶The label points to a dangerous situation. The situation can lead to
serious bodily harm or death!
CAUTION
▶The label points to a dangerous situation. The situation can lead to
light bodily harm!
NOTICE
▶The label points to a situation which can lead to material damages.
The damages can result on the product or in the vicinity of the prod‐
uct!
Info
The label indicates important application notes and useful information.
1.2 Safety and Health Hazard Notes
DANGER
Danger of explosion due to static electricity and other eects
▶Never operate the device in explosive areas!
WARNING
Thunderstorms can cause overvoltages in the AC power.
Overvoltages can lead to malfunctions and dangerous voltages between
housing and other components.
▶Do not use equipment connected to AC power during thunder‐
storms!
WARNING
Large measuring objects can fall over.
This can lead to serious bodily harm or death.
▶Make sure that you comply with the respective valid accident preven‐
tion regulations!
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WARNING
Repair work
Repair work can cause serious bodily harm and considerable material
damage.
▶Only authorized and qualified service personnel is allowed to perform
repair work!
▶Always comply with the accident prevention regulations!
CAUTION
The local supply voltage must be within the operating voltage range of
the device!
An incorrect operating voltage can cause malfunctions or the risk of fire.
▶Operate the equipment only with the operating voltages printed on
the housing!
CAUTION
Artificial optical radiation, EN62471 - risk group 2
Directly looking into the light source can be harmful for your eyes.
▶When you operate the device, do not look into the light source or into
the reflected light for a longer time!
CAUTION
Damaged cables can cause short circuits and the risk of fire.
Replace damaged cables.
▶Check the cables.
▶Protect the cables from mechanical load (squeezing, tension, etc.)!
NOTICE
▶Never connect cables during operation! Never disconnect cables dur‐
ing operation!
NOTICE
When the housing is open, there is risk of electric shock.
Only with the housing closed, the device is ready for operation.
▶Only open the housing when no voltage is supplied!
NOTICE
Strange objects in the device can jeopardize the operational safety.
Electric shocks and malfunctions can occur.
▶Do not stick any strange objects into the housing!
NOTICE
Humidity and water can be the cause for malfunctions and damages to
the device.
The devices must not come into contact with water.
▶Before cleaning, disconnect the power plug!
▶For cleaning, use a slightly moist cloth!
Important Notes
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2 Introduction
This manual is intended for qualified personnel who do not have any or
only few experiences with coordinate measuring technology. Basic PC
knowledge (windows-based programs and operating systems) is expec‐
ted.
For operating the system optimally, the ability to visualize in 3D and a
color vision ability are assumed.
This manual describes the following subjects:
•System installation
•Sensor settings
•Other hardware relevant information
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3 Product Description
The T-SCAN hawk sensor (Fig. 1) is a high-resolution 3D scanner that sup‐
plies fast and accurate three-dimensional measuring data. The T-SCAN
hawk comprises multiple line lasers. Using its stereo camera setup, the T-
SCAN hawk sensor records spatial 3D point clouds on the surface of the
measuring object. You guide the sensor across your measuring object at
the proper angle and distance. The sensor records the data, then an image
of the object’s surface is generated in the software.
The built-in photogrammetry system helps avoid summation errors with
large measuring objects.
The T-SCAN hawk sensor uses red and blue lasers for dierent sizes of
measuring areas and modes.
The data from the sensor is transmitted to the high-performance com‐
puter via a USB 3.0 cable.
Fig. 1: T-SCAN hawk sensor, front view
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4 System Overview
4.1 Technical Data
System T-SCAN hawk
Scan mode Default Single-line Fine
Laser source 7 intersecting
red laser lines
1 red laser line 5 parallel blue
laser lines
Resolution 0.050 mm 0.050 mm 0.010 mm
Scan area max. 550 x 600 mm
Scan details Supported
Deep recesses Supported
Built-in photogram‐
metry Supported
Accuracy 0.020 mm + 0.035 mm/m
High-precision GOM
scale bars With optional internal photogrammetry
Laser class (IEC EN
60825-1) 2M (safe for eye exposure)
Software GOM Inspect Suite/GOM Inspect Professional
Image and control
signal transmission Via USB 3.0 cable
Ambient conditions -10 °C to +40 °C (non-condensing)
Voltage range, power
adapter (typical) 100–240 V, 50–60 Hz
Voltage range, sensor
(typical) 24 VDC
Power consumption Typical: --- W
Max.: 120 W
Max. sensor–com‐
puter cable length 4 m
For more information, visit https://www.gom.com.
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5 Information About the Sensor
Each configured sensor, in scan direction, has defined 3D areas within
which a measuring object can be scanned. In the following, such a 3D area
is called “measuring volume” (MV).
5.1 Sensor Configurations
Measuring Areas T-SCAN hawk
Measuring Mode Blue Lasers Red Lasers Photogram‐
metry
Suggested max. part size
[mm]
300 1000 4000
Measuring area in the center
of the measuring volume (L x
W) [mm]
170 x 170 410 x 350 1200 x 900
Average distance between
reference points [mm] 50 120 120
The measuring distance for the T-SCAN hawk depends on the preferred
resolution and the measuring mode.
With the T-SCAN hawk, you can choose from dierent measuring modes.
This results in dierent measuring volumes.
Fig. 2: T-SCAN hawk measuring volumes, incl. photogrammetry measuring
area
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Resolution Red Measuring Area Blue Measuring Area
Measuring
Distance A2
[mm]
Height
(Measuring
Volume) B2
[mm]
Measuring
Distance A1
[mm]
Height
(Measuring
Volume) B1
[mm]
0.01–0.1 - - 200 60
0.1–1 320 380 200 130
> 1 320 560 200 190
Tab. 1: T-SCAN hawk measuring areas
Info
The optimal distance for Photogrammetry A3 is always 2 m. The height of
the measuring volume is 1 m.
Information About the Sensor
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6 Control Elements and LED Indicators
Fig. 3: Front and rear control elements
Camera A
Laser aperture
Control button, front
Camera B
Indicator light
Control buttons, rear
Indicator light
USB cable, power
USB cable, data connection
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Fig. 4: Front and rear control buttons
Initiate photogrammetry
measurement
Zoom in/increase exposure
time/next step in workflow
Change control mode
Zoom out/reduce exposure
time/previous step in work‐
flow
Start action/switch between
red/blue laser
Control Elements and LED Indicators
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7 Calibrate the Sensor
Calibration is a measuring procedure in which a calibration object is meas‐
ured. This configures the measuring system and ensures its dimensional
accuracy. During this process, the software determines geometric parame‐
ters, e.g., the position and orientation of each camera, based on recorded
camera images. The software also determines the image characteristics of
the camera lens and camera chip.
These settings are the basis for the software’s computations. Using the cal‐
ibration object’s points in the 2D camera image, the software computes
the points’ 3D coordinates.
It then computes the 3D coordinates back into the 2D camera images. This
results in the reference point deviation (intersection deviation) for the
position of the reference points.
The T-SCAN hawk comes with a calibration object.
Fig. 5: T-SCAN hawk calibration object
NOTICE
Unsuitable calibration objects may impact measuring accuracy.
▶When calibrating, only use the calibration object intended for your
sensor.
7.1 When is Calibration Necessary?
•After the sensor is connected to the computer, it needs to be calibra‐
ted.
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7.2 Calibrating Sensor with Calibration Panel
Requirements:
•The sensor is set up.
•The calibration object is on a solid surface.
Procedure:
1. Open the calibration dialog in the workspace T-SCAN hawk
with Calibrate Sensor ►.
a) The software then opens the calibration dialog.
Fig. 6: Calibration dialog
2. Activate the T-SCAN hawk laser.
3. Start the calibration procedure.
Info
Make sure the measuring distance is approx. 400 mm between the T-
SCAN hawk and the calibration object.
The software guides you through the remaining calibration steps. In the
first step, make sure that the calibration object is in the center of the
measuring volume.
The first calibration steps ask you to scan the calibration object vertically at
defined positions from the sensor.
The software guides you to the correct positions in the measuring volume.
The round display on the left part of the screen shows the correct sensor
of the angle to the calibration object. The right side of the screen shows
the correct distance from the calibration object.
Calibrate the Sensor
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Fig. 7: Calibration Position 2
First, record various vertical positions on the calibration object. Then, dif‐
ference 45° scanning positions are necessary. The two indicators show the
correct position of the sensor.
Fig. 8: Other calibration positions
Follow the remaining instructions on the software until the procedure is
complete.
7.3 Calibration Result
At the end of the calibration procedure, the software displays the calibra‐
tion result.
Fig. 9: Calibration result
Calibrate the Sensor
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Info
During calibration, make sure no other single point markers aect the pro‐
cedure.
Only use the calibration object. Make sure there are no other highly reflec‐
tive objects near the calibration objects.
When not calibrating, keep the calibration object in the protective sleeve.
After calibration, close the dialog. You can now begin taking measure‐
ments.
Calibrate the Sensor
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8 Cabling
8.1 Cabling with Laptop
Fig. 10: Connecting T-SCAN hawk to a laptop
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9 Declaration of Conformity
9.1 T-SCAN hawk Declaration of Conformity
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