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FPGA-based smart sensor implementation with precise frequency to digital converter for flow measurement

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2 Author(s)
Santos, E.J.P. ; Electron. & Syst. Dept., Univ. Fed. de Pernambuco, Recife, Brazil ; Silva, L.B.M.

The realization of integrated frequency-based smart sensor for flow measurement requires a precise frequency to digital converter. A VHDL-based implementation of such converter for a royalty-free solution with 1 ppm resolution is reported. This work is part of a correlator under development to measure total flow of multiphase fluids. This intellectual property block can also be used with other frequency encoded transducers. The converter has been prototyped with a Xilinx™ XC3S500E Spartan-3E FPGA, and has been tested up to 10MHz.

Published in:

Programmable Logic Conference (SPL), 2010 VI Southern

Date of Conference:

24-26 March 2010