Development of a carbon dioxide concentration meter using a solid electrolyte sensor

Recently. measurement of carbon dioxide (CO/sub 2/.) concentration is increasingly important in agriculture, environmental preservation, etc. On most occasions, CO/sub 2/ concentration is necessarily measured in-situ practically. We have developed a practical CO/sub 2/ concentration meter using a solid electrolyte sensor. In present paper we explain the structure and characteristics of the CO/sub 2/ sensor, the specifications of the concentration meter.