Laser Interferometer

Signal Processing - Digital & Efficient

Digital decoders convert the measured intensity curve in near real-time into the relevant physical measurement quantities of displacement, velocity and acceleration.

Digital signal processing

Optomet has always relied on digital signal processing to advance the performance and data quality of our vibrometers. Disadvantages of analog demodulation due to aging, temperature dependence, noise and non-linearities should be avoided, especially in precision measurement technology. The use of digital signal processing translates into significantly higher sensitivity, better resolution and higher stability which mean higher data quality and measurement certainty. In conjunction with the very low noise level, accurate measurements are still possible even with very weak signals.

The Optomet ultraDSP technology

The Optomet ultraDSP technology is based on the combination of efficient algorithms with powerful and energy-saving FPGAs. The sensor data is processed nearly free from delays in the vibrometer, and special Finite Impulse Response (FIR) filters deliver reliable and accurate measurement values even under the most difficult measuring circumstances.

Measurement data

Optomet developed the first digital over ethernet based vibrometer with a sample rate of up to 160 million samples per second. This digital stream of displacement, velocity and acceleration up to 32 bits gives users the confidence they are generating the highest data quality possible without compromises.  With the standard BNC connectors for each channel, Optomet vibrometers can be integrated into any analog data acquisition environment.

OptoMET Laser Doppler Vibrometer - High Dynamic Range

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