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| The Noise Suppressor II™ is an inexpensive add-on front-end signal processing unit for ultrasonic instruments. The NSII is connected between the transducer(s) and the UT pulser/receiver or flaw detector. It is housed in a small 7in x 4in x 1.5in (18cm x 10cm x 4cm) enclosure weighing 14oz (0.4kg) and is powered by either a 9v battery or ac. It operates in both pulse-echo or pitch-catch/thru-transmission modes. All settings are via detented rotary switches so that the user is assured of repeatable inspections. The unit interfaces with any type of analog or digital ultrasonic instrument, old or new, to provide a front-end, add-on signal enhancement capability.
The NSII can either suppress noise (due to spikes, environment, or grains) or increase the signal/noise ratio of weak desirable signals, or both. It functions as a Smart PreAmp in which only desired signals are gained and provides up to 60dB gain in a specific, user-tunable frequency range.
When added as a front-end signal processor, the NSII can significantly improve the performance of the UT instrument to which it is interfaced.
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Ultrasonic Testing
Equipment
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Signal Processing add-on for UT Flaw Detectors
- Tunable PreAmp
- Tunable Filters
- Smart PreAmp
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uploaded 21.10.2006
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