抄録
This paper describes a newly developed radiation thermometry of a steel plate in a high temperature furnace. The measuring system of this method is composed of a reference radiator set above an object and a radiometer which detects the radiance from the object surface through the small opening of the reference radiator. The reference radiator plays a role of both shielding the stray radiation noise and supplying a standard radiation signal.
This method has the following features;
(1) the measurement is done without cooling of the measured object because the reference radiator is heated in a furnace, thus free from the bad effect on the object.
(2) the maintenance is easily performed because of its simple construction.
(3) the reference radiator can be selected optionally according to the furnace condition.
Thus, this method is especially applicable to the temperature measurement of a steel in a high temperature furnace more than 1000°C such as a slab heating furnace.
