SISTEMA DE PROCESSAMENTO DE SINAIS E GERAÇÃO DE IMAGENS QUÍMICAS PARA SENSORES LAPS, FMOS E TAOS BASEADO EM DISPOSITIVOS LÓGICOS PROGRAMÁVEIS FPGA

Abstract

The control of the environment in real time has mobilized the scientific community to propose devices and systems versatile, portable and network communications for use in situ. For this reason, this paper reports the development of an automatic acquisition system, signal processing, and chemical imaging for sensing devices of the scanning pulsed light (LAPS), MOS devices enabled with photoluminescent molecules (FMOS) and optoelectronic devices activated with photoluminescent molecules (TAOS). The integrated acquisition and processing system was developed using virtual instrumentation technology and FPGA on a plate "Single Board RIO mod. NI-9631" of the "National Instrument Company". The proposed system performs controls the scanning of the excitation light sensors, dilution of the gases, acquisition of sensor signals using a lock-in signal processing and data transmission via internet network implemented in all "sbRIO-9631". Index Terms - Chemical Image, digital lock-in amplifier, OLED.