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INTRODUCTION
Laser Doppler Velocimeter enables non-contact
measurement from zero speed
FEATURES
- Contact-free measuring of movement
speeds, movement distances, speed irregularities,
and rotation irregularities.
- Enables wide speed range measurement
from still state.
- Automatic gain control (AGC),
Automatic Doppler frequency following function are
equipped.
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SPECIFICATIONS
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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) |
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