title: Research and Development of Odor Measurement Using a Semiconductor Gas Sensor.
abstract: In the absence of an established olfaction theory, measurement of odors is conducted using human olfaction. We have developed a new system to measure and monitor human sensory value using a semiconductor gas sensor. The system consists of (1) moisture control equipment for measuring gas and odorless air, and (2) computer software to convert the adsorption amount of the sensor into the human sensory value. The sensor can be calibrated by three methods: (1) by giving the sensor's coefficients without using calibration gas; (2) by using calibration gas; and (3) by using the mathematical model with a compensation coefficient using calibration gas. We were able to measure the human sensory value with a correlation coefficient of 0.95 to 0.96 for each method.
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Kato
authors.forename: Takenori
authors.initials: T
authors.lastname: Murakawa