TEMPERATURE MEASURING METHOD, TEMPERATURE MEASURING APPARATUS, TEMPERATURE CONTROL METHOD, TEMPERATURE CONTROL APPARATUS, CORRECTION METHOD AND CORRECTION APPARATUS

摘要

A temperature measuring method is disclosed in which, even when a sheet-like object has an uneven temperature distribution throughout itself, the sheet-like object is measured for temperature with accuracy. In this method, temperature measurement is conducted in a measuring area (S) where the sheet-like object (a) is to be measured for its physical quantity or in the vicinity of the measuring area during determination of the physical quantity by a physical quantity measuring means. One or more temperature sensors (11) are located in position proximal to each sheet-like object that streams in a predetermined direction relative to the temperature sensors (11), and air is jetted out toward the sheet-like object (a) for creating an air curtain that surrounds each temperature sensor (11) so that a gauge workspace (T) substantially confining the atmosphere therein is defined over one or both of the opposite surfaces of the sheet-like object, the measuring area (S) being within the gauge workspace (T), thereby the temperature sensors (11) detecting temperature in the measuring area (S) or in the vicinity of the measuring area within the gauge workspace (T).