A novel infrared temperature measurement with dual mode modulation of thermopile sensor

Research output: Contribution to journalArticle

Abstract

Superior to the traditional infrared temperature sensing architecture including infrared sensor and thermistor, we propose a novel sensing approach based on a single thermopile sensor with dual modes modulation. A switching and sensing circuit is proposed and realized with a chopper amplifier AD8551 and p-channel MOSFET (PMOS) for switching between detection of thermal radiation and the target and the ambient temperature for compensation. The error of target temperature after temperature compensation is estimated at less than 0.14 °C.

Original languageEnglish
Article number336
JournalSensors (Switzerland)
Volume19
Issue number2
DOIs
Publication statusPublished - 2019 Jan 2

Fingerprint

Thermopiles
thermopiles
Temperature measurement
temperature measurement
Modulation
Infrared radiation
modulation
Temperature
sensors
Sensors
Chopper amplifiers
switching circuits
Thermistors
electric choppers
thermistors
temperature compensation
Heat radiation
thermal radiation
ambient temperature
field effect transistors

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Biochemistry
  • Instrumentation
  • Electrical and Electronic Engineering

Cite this

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abstract = "Superior to the traditional infrared temperature sensing architecture including infrared sensor and thermistor, we propose a novel sensing approach based on a single thermopile sensor with dual modes modulation. A switching and sensing circuit is proposed and realized with a chopper amplifier AD8551 and p-channel MOSFET (PMOS) for switching between detection of thermal radiation and the target and the ambient temperature for compensation. The error of target temperature after temperature compensation is estimated at less than 0.14 °C.",
author = "Shen, {Chih Hsiung} and Chen, {Shu Jung} and Guo, {Yi Ting}",
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A novel infrared temperature measurement with dual mode modulation of thermopile sensor. / Shen, Chih Hsiung; Chen, Shu Jung; Guo, Yi Ting.

In: Sensors (Switzerland), Vol. 19, No. 2, 336, 02.01.2019.

Research output: Contribution to journalArticle

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