Abstract
In order to estimate the temperature-control system of Phytotron, spectrum analysis with temperature and air-flow has been carried out.
So, how to measure fluctuation of temperature, how to process data of time series and how to adapt spectrum analysis to Phytotron are discussed.
As a result, it is concluded that characteristic of temperature-distribution in Phytotron is given by power spectrum density function of temperature and that spectrum analysis with air-flow (input) and temperature (output) is good approach to estimate the temperature-control system of Phytotronunder consideration of system-linearity.
