학술논문

Second-order Thermal Sigma-Delta applied to resistive bolometers on infrared detection
Document Type
Conference
Source
2016 1st International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT) Instrumentation Systems, Circuits and Transducers (INSCIT), International Symposium on. :122-126 Aug, 2016
Subject
Components, Circuits, Devices and Systems
Signal Processing and Analysis
Bolometers
Sigma-delta modulation
Thermal sensors
Modulation
Detectors
Signal to noise ratio
Temperature measurement
Thermal Sigma-Delta
Sigma-Delta modulator
bolometer
IR detection
Language
Abstract
The Thermal Sigma-Delta (TΣΔ) modulator is a thermal-electric system where the resistive element performs in the thermal domain part of the ΣΔ modulator (sum and integration). In this work, we propose the modeling and we perform simulations of 1st and 2nd order TΣΔ modulators using bolometers as the thermal-electric device. This study has the purpose of achieving a complete solution of a bolometer with increased sensitivity, while providing a digital output, using only thermal sigma-delta converters, which is suitable solution to integrated transducers.