TEMPERATURE CONTROLLER FOR THERMOSTATIC BOX

摘要

PURPOSE: To provide the temperature control device of a thermostatic box in which the temperature control with high accuracy can be performed by performing an operation control by the temperature gradient below the minimum resolution for the temperature and time of a temperature control device including a PID control means composed of a microcomputer and a driver IC, etc., controlling the temperature of the thermostatic box room. ;CONSTITUTION: This temperature controller is a temperature controller 31 of a thermostatic box provided with a heater 13 heating the inside of the thermostatic box room, a target setting means 40 setting the target temperature T within the thermostatic stock room and target time(t) for reaching the temperature and a PID control means 34 performing the PID control of the heater so that the temperature within the thermostatic box detected by a temperature sensor 32 detecting the temperature within the thermostatic box may be the target temperature. And this device is provided with a time interval determination means 36 determining a time interval M when set values are successively changed based on the temperature gradient fixed by the target temperature T and target time(t) set by the target setting means 40.;COPYRIGHT: (C)1994,JPO&Japio