自动化仪表
自動化儀錶
자동화의표
PROCESS AUTOMATION INSTRUMENTATION
2014年
6期
57-60
,共4页
曹海源%初华%米朝伟%黎伟%董科华
曹海源%初華%米朝偉%黎偉%董科華
조해원%초화%미조위%려위%동과화
红外热像仪%电路检测%测试算法%最小可分辨温差(MRTD)%噪声等效温差(NETD)
紅外熱像儀%電路檢測%測試算法%最小可分辨溫差(MRTD)%譟聲等效溫差(NETD)
홍외열상의%전로검측%측시산법%최소가분변온차(MRTD)%조성등효온차(NETD)
IR thermal imager%Circuit detection%Test algorithm%Minimum resolvable temperature difference (MRTD)%Noise equal temperature difference(NETD)
为实现红外热像系统性能检测设备的国产化,设计了检测仪的电路系统。针对红外系统的关键测试指标,提出了检测仪的总体设计方案,详细阐述了检测仪的硬件电路设计,论述了红外系统最小可分辨温差( MRTD)、噪声等效温差( NETD)等指标的测试原理与算法,给出了电路检测软件和维修指导软件的设计方法。试验测试表明,该检测系统电路达到了设计指标要求,目前已应用于某小型红外系统检测诊断设备中。
為實現紅外熱像繫統性能檢測設備的國產化,設計瞭檢測儀的電路繫統。針對紅外繫統的關鍵測試指標,提齣瞭檢測儀的總體設計方案,詳細闡述瞭檢測儀的硬件電路設計,論述瞭紅外繫統最小可分辨溫差( MRTD)、譟聲等效溫差( NETD)等指標的測試原理與算法,給齣瞭電路檢測軟件和維脩指導軟件的設計方法。試驗測試錶明,該檢測繫統電路達到瞭設計指標要求,目前已應用于某小型紅外繫統檢測診斷設備中。
위실현홍외열상계통성능검측설비적국산화,설계료검측의적전로계통。침대홍외계통적관건측시지표,제출료검측의적총체설계방안,상세천술료검측의적경건전로설계,논술료홍외계통최소가분변온차( MRTD)、조성등효온차( NETD)등지표적측시원리여산법,급출료전로검측연건화유수지도연건적설계방법。시험측시표명,해검측계통전로체도료설계지표요구,목전이응용우모소형홍외계통검측진단설비중。
To realize the localization of the performance detection equipment for infrared thermal imaging system, the circuitry system of the detector has been designed. In accordance with the critical testing indexed, the overall design scheme of the detector is proposed. The hardware circuit design is described in detail, and the testing principles and algorithms for minimum resolvable temperature difference( MRTD) and noise equal temperature difference(NETD) in IR system are expounded. The experimental tests indicate that the circuitry of the detecting system reaches the requirements of design goal, it has been applied in detection and diagnosis equipment of certain small scale IR system.