This invention discloses a testing device for sensitive components of a linear temperature-sensitive
fire detector, belonging to the field of
fire detector testing technology. It includes a housing, a
heating system, a
temperature control system, and a heat dissipation
system. The
heating system employs a surface-
mount heat conduction heating cavity and a matching heating device. The
temperature control system is based on a PLC industrial control integrated computer. This invention designs standardized testing methods for both constant-temperature and differential-temperature alarm-type sensitive components. During the heating process, online thermal characteristic identification and predictive
temperature control algorithms achieve precise regulation of the temperature
rise rate. During the constant-temperature process, a
Smith predictor combined with an adaptive PI
algorithm achieves stable temperature control. Multiple safety protection functions are also included. This invention solves the problems of low temperature control accuracy, non-standardized testing procedures, inability to realistically simulate the temperature rise process, low testing efficiency, and potential safety hazards in existing testing methods. The testing process closely matches the actual
working environment of the component, and the results meet standard testing requirements.