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DS-80
High-resolution, High-accuracy, High-speed response

Sensor Head
A-type
B-type
C-type
Measurement System
Michelson interferometer
Light source
Semiconductor Laser (wavelength 650 nm)
Measuring range
± 50 µm
Working distance
10 mm
2.5 mm
53 ± 0.5 mm
Laser spot diameter
20 x 10 µm
5 x 2.5 µm
50 x 25 µm
Alignment tolerance
± 0.5 degrees
± 2.0 degrees
± 0.3 degrees
Resolution
max. 0.08 nm
Linearity
less than ± 0.02 % of full scale
Response frequency max. 500 kHz (at 0.1 µm p-p or less)
Object surface
Mirror reflection surface
Dimensions
51 x 38 x 19 mm
47 x 38 x 19 mm 53.1 x 49.5 x 20 mm

DSP board unit
Composition Interface Box, DSP board
Bus type
ISA bus or PCI bus
OS Windows95, 98, NT4.0, 2000
Sensor input
2 ch
Displacement output
Graphical Display on screen, Data file
creation (CSV format), Analog voltage output
Sampling speed Real Time mode:
1 ch: 50 kHz (fixed)
2 ch simultaneous: 25 kHz (fixed)
Storage mode: 1 ch: up to 100 kHz (adjustable)
2 ch simultaneous: up to 50 kHz (adjustable)
Storage data size
max. 30,000 points
External trigger
One sample per trigger, TTL level
Analog output
± 2.5 V
Dimensions Interface Box
120 x 118 x 30 mm
DSP board 203 x 99.1 mm

FEATURES

  • Ultra-high resolutions of 0.08nm with high-speed response
  • Linearity of ±0.02% of full scale
  • Microscopic object can be measured by small beam spot
  • Two types of data acquisition board, standard version with 100kHz sampling, high-speed version with 500kHz sampling

    External dimensions of Signal processing unit
    Standard version ISA/PCI board unit (I/F box + PCI board)

    High-speed version PCI board

Diagrams
DS-80 Diagram
External Dimensions
PCI Board
A- Type Sensor Head
B- Type Sensor Head
 

*1) Comparison measurement with Laser Interference at 23 ºC

 
micro laser interferometer
DS-80



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