A high frequency digital induction system for condutive flow level measurements

摘要: Abstract A highly integrated, Field Programmable Gate Array (FPGA) based induction measurement system for conductive flow level is presented. Exploiting under-sampling and digital I/Q demodulation techniques, the use direct sampling can operate at multiple frequencies (from 100 kHz to over 10 MHz). Details are discussed in both hardware software aspects. Simulations experiments 2.6 MHz 8.3 MHz carried out using saline solutions with conductivities of 1.8 S/m 4.3 S/m verify performance system. Application monitoring implemented studied, which further proves applicability low conductivity object measurements.