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Optical Displacement Sensor : O2DS Z (2 & 6 kHz) Scanners

Optical Displacement Sensor : O2DS Z (2 & 6 kHz) Scanners

Optical Displacement Sensor : O2DS Z (2 & 6 kHz) Scanners

General description

The O2DS sensor is an optical measuring device for non-contact precision measurement in two dimensions. The measurement is performed by oscillating the triangulation plane over 10° (max. 50°). A fine collimated or focused laser beam is diffusely reflected from the surface of almost any kind of material or fluid, and a CCD- camera records the image through an objective. This makes it possible for a Digital Signal Processor to calculate the (radial) distance from the centre of the mirror axis to the object surface, as well as keeping track of the angular reference position.

The O2DS measuring system is a compact unit where optics, CCD-camera, and digital signal processing electronics all are integrated in the sensor housing. The schematic drawing to the right shows the O2DS 130 scanner seen from the side. It is here indicated how the triangulation plane, with this orientation of the scanner, can sweep (maximum) from minus 25° below the horizontal X-plane up to plus 25° above the horizontal X-plane. The distance data is available with a measuring frequency of 2 kHz as a digital signal, and presently for Windows applications only.

The scanner is delivered with diskettes containing a Windows test/demo program as well as the DLL file. The PC program receives output data from the scanner over the RS232 or RS422/485 interface and a COM port, and presents the measured distance to the object with the aid of DLL software support that comes with the scanner. The software either converts polar coordinates of a measurement point to orthogonal X, Y-coordinates or presents a profile (table of X, Y-values) for each sweep from one side to the other. The user can within the application program specify the seize of the Y-increment and thus the length of the output table containing the profile data.

The O2DS scanner is developed for the need of 2D- / profile-measurement in any kind of industrial application. The ruggedly constructed scanner is designed to give a very reliable measuring performance with good measuring accuracy. With output data in the software-converted form, the Y-coordinates can be used for width/hight measurement with a resolution dependent of the user chosen scan arch. By combining the X-coordinates of the profile data from two scanners, width data can be computed and presented in connection with the edge profiles measured from both sides of the object.

 

O2DS 250
O2DS 325
O2DS 450
O2DS 750
Measuring range mm (A)
200-300 (100)
20-450 (250)
200-700 (500)
400-1100 (700)
Scan arch 10° (standard)
±5°
±5°
±5°
±5°
Length of scan close by mm (B)
35
35
35
70
Length of scan far away mm (C)
52
78
121
191
Scan arch 50° (option)
±25°
±25°
±25°
±25°
Length of scan close by mm (B)
186
186
186
372
Length of scan far away mm (C)
253
379
591
928
 
Resolution (radial/polar) mm
0,03
0,05
0,1
0,2
Repeatability  (radial/polar) mm
±0,03
±0,05
±0,1
±0,2
Linearity (radial/polar) mm
±0,1
±0,2
±0,2
±,4
Scan frequency
10/5 sec
10/5 sec
10/5 sec
10/5 sec
Angular resolution 10°
<0,08°-<0,04°
<0,08°-<0,04°
<0,08°-<0,04°
<0,08°-<0,04°
Angular resolution 50°
<0,4° <0,2°
<0,4° <0,2°
<0,4° <0,2°
<0,4° <0,2°
Updating frequency
2000Hz
2000Hz
2000Hz
2000Hz
Light source
laser 655nm
laser 655nm
laser 655nm
laser 655nm
Spot diameter mm
1
2
3
3
Laser class
IEC 2
IEC 2
IEC 2
IEC 2
O2DS 505
O2DS 1155
O2DS 1950
O2DS 1350
Measuring range mm (A)
450-550 (100)
1100-1350 (250)
1500-2400 (900)
700-2000 (1300)
 
Scan arch 10° (standard)
±5°
±5°
±5°
±5°
Length of scan close by mm (B)
79
175
262
123
Length of scan far away mm (C)
95
226
418
348
 
Scan arch 50° (option)
±25°
±25°
±25°
±25°
Length of scan close by mm (B)
419
932
1398
652
Length of scan far away mm (C)
464
1098
2028
1688
 
Resolution (radial/polar) mm
0,05
0,02
0,6
0,8
Repeatability  (radial/polar) mm
±0,51
±0,02
±0,6
±0,8
Linearity (radial/polar) mm
±0,1
±0,5
±1.2
±1.6
 
Scan frequency
10/5 sec
10/5 sec
10/5 sec
10/5 sec
Angular resolution 10°
<0,08°-<0,04°
<0,08°-<0,04°
<0,08°-<0,04°
<0,08°-<0,04°
Angular resolution 50°
<0,4° <0,2°
<0,4° <0,2°
<0,4° <0,2°
<0,4° <0,2°
 
Updating frequency
2000Hz
2000Hz
2000Hz
2000Hz
Light source
laser 655nm
laser 655nm
laser 655nm
laser 655nm
Spot diameter mm
1
4
5
5
Laser class
IEC 2
IEC 3
IEC 3
IEC 3

General Specifications

Serial communication RS232/RS422 optional Eithernet
Baud Rate 115200
Supply voltage 24Vcc ±10%
Consumption 12 W max.
Operating temperature 0 +45°C
Storage temperature -20 +70°C
Max. allowed humidity 90% non condesing
Protection class IEC IP64
Dimensions mm 310 x 190 x 64
Weight excluding cable 4200g
Cable lenght 2,5m
Housing steel / aluminium / glass
More Information
O2DS z series Scanner
O2DS z series Scanner
   
Gordy’s Sensors • 5772 Smaller Rd, Johnstown, OH 43031
Phone: (740) 967-2283 • Fax: (740) 967-2855
www.gordyssensors.com or
sales@gordyssensors.com