一种超高温黑体空腔辐射源自适应闭环温控方法及系统
By real-time monitoring and decomposition of multi-source signals, a state-space observation model was constructed, which solved the problem of emissivity drift of ultra-high temperature blackbody cavity radiation sources under high temperature conditions, achieving precise temperature control and safe control, and improving the accuracy of temperature measurement and system stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GANSU PROVINCIAL INST OF METROLOGY
- Filing Date
- 2026-03-20
- Publication Date
- 2026-07-17
AI Technical Summary
The existing ultra-high temperature blackbody cavity radiation source does not monitor the dynamic drift of emissivity in high temperature environments in real time, resulting in temperature measurement deviations and false stability phenomena. Traditional control strategies cannot adapt to changes in effective emissivity, affecting the accuracy and safety of temperature control.
By acquiring multi-source observation signals in real time, performing time-domain alignment and frequency-domain decomposition, a state-space observation model is constructed. Combined with a nonlinear state estimation algorithm, the estimated values of temperature and effective emissivity are updated in real time. Compensation control is then performed based on the effective emissivity, and a hierarchical safety control strategy is combined to generate heating power commands.
It achieves accurate estimation of temperature and emissivity, improves temperature control precision, reduces safety risks, ensures material safety, can quickly adapt to complex environmental changes, and reduces the risk of failure.
Smart Images
Figure CN121879475B_ABST