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Diagnose transducers with smart SoC

Posted: 01 Jul 2009     Print Version  Bookmark and Share

Keywords:MAXQ7667  transducer  smart SoC  transducer modules 

This article shows how the MAXQ7667 smart system-on-a-chip (SoC) can quantify the resonant frequency and damping characteristics of an ultrasonic transducer. These capabilities are useful to diagnose transducer modules, to optimise system performance and to assist in calibration during manufacturing.

This application note is not a general how-to document intended to work on all systems. Instead, the article assumes a detailed knowledge of a specific transducer model and how it performs in the conditions of interest. With that information, the user may be able to significantly streamline the tests shown here. These tests assume, finally, that any reflective targets in the transducer beam are more than a foot away from the transducer.

View the PDF document for more information.

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