 |
|
Fiber Vibrometer
SPECIFICATIONS
Interferometer
General Data / Operating Parameters
- Laser Type: Helium Neon
- Laser Wavelength: 633 nm
- Cavity Length: 205 mm
- Laser Output Power / Classification: 2.3 mW / IIIa
- System Output Power / Classification: < 1 mW / II
OFV-501 Fiber Optic, Single Point Interferometer
- Range of Standoff Distances: 5 cm to 30 m
- Length of Fiber Cable: 2 m (3 m)
- Minimum Bending Radius: 50 mm
Optical Head for Use with Fiber Optic Interferometer
- OFV-100 dimensions (L x Diam.): 4.3 x 2.25 cm (1.7 x 0.9")
OFV-3000 Controller Processor
General Data / Operating Parameters
- Power Requirement: 100 / 110 / 220 / 240 VAC
Preamplifier and Tracking Filter Section
Tracking Filter Specifications
- Track Range: 40 MHz ± 20 MHz
- Range settings and associated maximum vibration frequencies:
"OFF": 1.5 MHz max, depending on decoder range selected
"FAST": 400 kHz max depending on target reflectivity
"SLOW": 100 kHz max depending on target reflectivity
Velocity Decoder Specifications
| Decoder Type |
Measurement Range |
Full Scale Output
(Peak to Peak) |
Resolution |
Max. Signal Bandwidth
(3dB value) |
| OVD |
mm/s/V |
mm/s |
µm/s |
kHz |
| -01 |
1
5
25
125
1,000 |
20
100
500
2,500
20,000 |
0.5
0.6
0.8
1
2 |
35
150
150
150
150 |
| -02 |
5
25
125
1,000 |
100
500
2,500
20,000 |
0.8
2
5
10 |
250
1,500
1,500
1,500 |
- Output Swing: ± 10 Volts
- Output Impedance: 100 Ohms
Low Pass Filter Specifications
- Filter Type and Order: Bessel 3rd order
- Selectable Cutoff Frequencies: 5 / 20 / 100 kHz
Displacement Decoder Section
| Decoder
Type |
Measurement
Range |
Full Scale
Output
(Peak to Peak) |
Resolution |
Max. Signal
Bandwidth
(3dB value) |
|
|
|
OVD
-20
|
|
| |
|
mm/V |
mm |
µm |
kHz |
2
8
20 |
0.032
0.13
0.32 |
0.008
0.032
0.08 |
50 |
|
OVD
-10
| |
80
320
1,280
5,120 |
1.3
5.2
20.5
82 |
0.32
1.3
5
20 |
50 |
- Output Swing: ± 8 Volts
- Output Impedance: 100 Ohms
- Triggering: Manual triggering is possible using the RESET button on the front
panel. Synchronized triggering is possible using related BNC connector. Slope:
positive, min. signal level: 50 mVpp
Outputs
- RF Out: Buffered return signal from interferometer. BNC 40 MHz ± 32 MHz,
50 Ohms
- Vel Out: Output voltage proportional to instantaneous velocity. BNC ± 10 V
full scale, 100 Ohms
- Dspl Out: Output voltage proportional to displacement of target. BNC ± 8 V
full scale, 100 Ohms
|
