Home // ALLSENSORS 2017, The Second International Conference on Advances in Sensors, Actuators, Metering and Sensing // View article

Low-cost Gas Concentration Sensor System

Authors:
Axel Kramer
Teresa Jorge
Mariya Porus
Thomas Alfred Paul
Dieter Zeisel

Keywords: Gas analyzer; binary mixture; composition sensor; density sensor; multi-sensor system; concentration measurement

Abstract:
We developed a novel multi-sensor system for online measurement of the composition of a binary gas mixture. The system provides information about pressure, temperature and density from which the partial pressure (or concentration) of the individual gas components in the mixture can be deduced. The sensors are housed in a small, robust package allowing the application in harsh industrial environments. In order to achieve highly precise information about the gas concentration, the sensor system is factory calibrated using a sophisticated calibration procedure. We report both on the procedure and theory used for calibration and on the experimental setup and procedure to validate the sensor system using certified gas mixtures. Moreover, the temperature effect on the concentration output was analyzed. We demonstrate, that our sensor can keep the concentration uncertainty as low as Δc/c < ±2.5% over a temperature range of 10°C < T < 30°C.

Pages: 16 to 17

Copyright: Copyright (c) IARIA, 2017

Publication date: March 19, 2017

Published in: conference

ISSN: 2519-836X

ISBN: 978-1-61208-543-2

Location: Nice, France

Dates: from March 19, 2017 to March 23, 2017