Title :
Digital Synchronization Utilizing Harmonic Signal Generator for Capacitive Pressure Sensor Measurement
Author :
Fujcik, L. ; Vrba, R. ; Michaeli, L. ; Haze, J.
Author_Institution :
Dept. of Microelectron., Brno Univ. of Technol., Brno
Abstract :
The harmonic signal generator utilizing sigma-delta modulation for capacitive pressure sensor measurement was designed in AMIS CMOS 0.7 mum technology. Harmonic signal generator is one of the important parts of complex measurement system for capacitive pressure sensor measurement. Whole capacitive measurement system is based on bandpass (BP) Sigma-Delta modulation. Phasing of harmonic signal and digital sampling signal is main requirement for proper function of capacitive pressure sensor measurement utilizing BP Sigma-Delta modulator. Harmonic signal generator was designed using VHDL. Synthesis of digital synchronization utilizing harmonic signal generator was accomplished in Cadence BuildGates and implemented in Cadence Silicon Ensemble.
Keywords :
capacitive sensors; pressure sensors; sigma-delta modulation; signal generators; signal sampling; synchronisation; AMIS CMOS technology; Cadence BuildGates; Index Cadence Silicon Ensemble; VHDL; bandpass Sigma-Delta modulation; capacitive pressure sensor measurement; digital sampling; digital synchronization; harmonic signal generator; sigma-delta modulation; Ambient intelligence; CMOS technology; Capacitive sensors; Delta-sigma modulation; Digital modulation; Pressure measurement; Sampling methods; Sensor systems; Signal design; Signal generators; mixed analogdigital; sensors; sigma-delta modulation;
Conference_Titel :
Systems, 2008. ICONS 08. Third International Conference on
Conference_Location :
Cancun
Print_ISBN :
978-0-7695-3105-2
Electronic_ISBN :
978-0-7695-3105-2
DOI :
10.1109/ICONS.2008.60
