Modular Type Vibrometer Controller is available in both analogue and digital decoders model giving a frequency ranging from near DC to 24 MHz with velocities of up to ±10 m/s and displacements from the sub-nanometer to meter range. The Vibrometer Controller when combined with interferometric sensor head, can perform ultra precise work horse in non-contact vibration measurement. The Vibrometer Controller is available in a modular design that allows the frequency, velocity and displacement capabilities to be tailored to specific or multiple applications. Modular Type Vibrometer Controller comes under the model name of OFV-5000.