Free-space Single-point Laser Doppler Vibrometer (FNV-R1D-VD1)

SpecificationsStandardCustom Design
Measurement point1 
LaserHe-Ne Laser (wavelength at 632.8nm, Class II,Eye-safe) 
Standoff Distance0.2m – 2m (adjustable focal length, up to 20m with retro-reflective surfaces)Fixed-focal lens for MEMS measurement, focal lens: 30mm-50mm
Spot size of laser20µm – 200 µm<10µm
OutputDisplacement and Velocity (Display time-domain at the same, frequency-domain real time switch by the software)  
Frequency Measurement Range0.1Hz – 250kHzUp to 5MHz
Velocity Measurement RangeAdjustable based on resolution, From10mm/s to 3m/sUp to 10m/s
ResolutionVelocity: 0.01μm/s/√Hz
Displacement: 1pm
 
Demodulation systemFPGA digital decoding system (real time output)Analog decoding system or
Ultra-high-resolution software decoding system
Interface of controlSoftware control 
Cable length between sensing head and system2m 
Mounting hole of sensing headM4, M6,1/4″-20Custom design
Data outputDigital output(USB2.0 interface)
Analog output (BNC interface,only for <250kHz vibration
Digital output(USB3.0 interface)
Power supply110V-240V,50Hz-60Hz 
SoftwareWindows-based interface for display analyze and save measurement dataOptional laptop with SSD
Trigger interfaceTTL Signal, BNC interface 
Size of sensing head300mm(L) x 60mm(W) x 120mm(H) 
Warranty1-year warrantyOptional 2-year warranty
FN-RSH-1_heavy
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