OFV-2500 Series Vibrometer Controllers - HF Controller

The OFV-2570 HF Vibrometer Controller is a compact and non-contact sensor for high-frequency vibration measurements up to 24 MHz in ultrasonic transducer development, ultrasonic non-destructive testing (NDT), measurement of high frequency dynamics of MEMS and wave propagation research. It demodulates velocities  and displacements in the nanometer range and can be used with either standard or fiber-optic sensor heads as well as the OFV-534 Compact Sensor Head with optional integrated color video camera and microscope lens.

	Features | HF Controller | Tech. Data | Download |

The OFV-2570 High-Frequency Vibrometer Controller incorporates a 2-range velocity decoder with up to 10 MHz bandwidth and a single range displacement decoder with up to 24 MHz bandwidth. Both decoders can be operated simultaneously with separate outputs and enable measurement of vibration velocities up to 3 m/s (peak) and displacements up to ±75 nm. The instrument includes an LED display for control settings, signal level display and RS-232 interface for external communication and programming user-defined settings. Robust enough for an industrial environment and precise enough for a measurement lab, it satisfies applications where accurate measurements of high frequency vibration response, phase, linearity and amplitude are needed:

• High frequency transducer development and quality control (e.g. medical ultrasonic devices, wirebonders)

• Non-contact receiver for ultrasonic waves (e.g. for non-destructive laser ultrasonic thickness measurement, scanning laser ultrasonic microscopy)

• Measurement of transient and steady-state dynamics on MEMS devices

• Simple, affordable measurement solution for ultrasonic vibration measurements
• Effortless operation through user-friendly front panel display or via remote control interfaces
• Non-contact, non-loading measurement on any type of surface
• Small measurement spot size (down to 1.5 microns)
• Insensitive to ambient vibration in displacement mode through automatic suppression of low-frequency background bandwidth vibrations
• Measures transients (shocks, pulses, steps) as well as steady-state vibrations
  

The OFV-2570 Vibrometer Controller can be used with the following sensor heads:

• OFV-503 and OFV-505 Single point sensor heads, particularly suitable for large measurement distances

• OFV-551 and OFV-552 Fiber-optic sensor heads, preferred for short measurement distances, small objects and microscope integration

• For single-point characterization of microstructures, the OFV-2570 controller can be combined with the OFV-534 Sensor Head equiped with a  microscope objective to deliver a 1.5 micron measurement spot.

   

If more flexibility is needed, the modular, highend OFV-5000 Vibrometer Controller can be equipped with a 24 MHz DD-300 displacement decoder, or a 10  MHz velocity decoder.

For full-field vibration measurements of up to 24 MHz, Polytec provides the PSV-400-M2-20 Scanning Vibrometer for macrostructures and the MSA-400 Micro System Analyzer for microstructures.

¹⁾ The noise-limited resolution is defined as the signal amplitude (rms) at which the signal-to-noise ratio is 0dB with 1 Hz spectral resolution, measured on 3M Scotchlite Tape® (reflective film). The attainable resolution is frequency-dependent.