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LV-20Z, LV-50Z
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LV20Z, LV-50Z
Laser Doppler Velocimeter enables non-contact measurement from zero speed

SPECIFICATIONS
LV-20Z
LV-50Z
Optical sensor
S-100Z
Signal Processing unit
P-20Z
P-50Z
Measurement Range
- 200 to 2000 mm / sec.
- 50 to 5000 mm / sec.
Maximum Resolution
2.5 µm / pulse
5 µm / pulse
Focal Length
40 mm
Depth of focus
± 5 mm
Laser spot size 2.4 x 0.1 mm (at focal point)
Velocity fluctuation response frequency 0 to 300 Hz
Effective object surface
Reflectance 20 % or more, flat scattered
Output Signal 1 : F/ V analog output
- 4 to + 5 V (at RANGE 4 )
- 0.6 to + 7.5 V (at RANGE 4 )
Accuracy less than ± 1 % of full scale
2 : A,B phase balanced output 2.5, 5, 10, 20, 40, 80, 160, 320 µm
5, 10, 20, 40, 80, 160, 320, 640 µm
Phase difference 90 ± 30 deg
3 : Doppler pulse output 120 to 1000 kHz
180 to 2200 kHz
Measurement Certainty <100 mm / sec : ± 0.2 mm / sec, > 100 mm / sec : ± 0.2 %
4 : Optical shift frequency output 200 kHz, CMOS level
5 : UP/DOWN pulse output pulse per Δd moving to positive/negative direction
6 : Measurement error output Indicate high level when error
Velocity display
5 digit (mm / sec, m / min. selectable)
Light source
Semiconductor laser ( 680 nm)
Voltage
100 ~ 240 V
External dimensions Optical sensor
33 x 98 x 39 mm
Main unit
235 x 290 x 115 mm
Ambient conditions
Operating Temperature
0 to 45 ºC
Storage Temperature - 30 to 60 ºC
Humidity 80 % RH or less (no condensation)