Polytec OFV-512 - Page 67

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Voltage swing: 16V
p-p
Output impedance: 50 Ω
Minimum load resistance: 10k Ω ( − 0.5% additional error)
Displacement
decoder
Measurement
range
(scaling factor)
Full scale
output
(peak-peak)
Resolution
1
Maximum
velocity
Bandwidth
Max. frequency
for specified
accuracy
µ m/V µ m µ mm/skHz kHz
OVD-10 20 320 0.08 2.5 0...250 100
80 1,280 0.32 10 0...250 100
320 5,120 1.3 10 0...250 100
1,280 20,480 5.0 10 0...250 100
5,120 81,920 20 10 0...250 100
OVD-20 0.5 8 0.002 0.06 0...25 10
and 2 32 0.008 0.25 0...75 15
OVD-40 8 128 0.032 1 0...75 25
20 320 0.08 2.5 0...250 100
80 1,280 0.32 10 0...250 100
320 5,120 1.3 10 0...250 100
1,280 20,480 5.0 10 0...250 100
5,120 81,920 20 10 0...250 100
1
The resolution is defined as 1 increment of the fringe counter output which is equivalent to a 4mV output voltage step.
Amplitude error: ± 1% of rms reading ± 1 increment
Conditions: Sinusoidal vibration, f = 100Hz, amplitude 50% of full
scale range, load resistance ≥ 1M Ω
Maximum linearity error: Ranges 20 µ m/V...5,120 µ m/V: ± 1 increment
Ranges 0.5 µ m/V...8 µ m/V: ± 2 increments
Threshold: + 10mV (typ.), rising edge
Hysteresis: 5mV (typ.)
Maximum input voltage: ± 14V
Pulse rate: 40Hz...16kHz
Input impedance: > 0.5k
Ω (depending on the pulse frequency)