仪器仪表标准化与计量
儀器儀錶標準化與計量
의기의표표준화여계량
Instrument Standardization and Metrology
2013年
5期
37-40
,共4页
温度%安全栅%工业
溫度%安全柵%工業
온도%안전책%공업
Temperature%Safety Barrier%Industry
本文以热电阻信号为采集对象，依据本质安全防爆的基本原理，设计了工业智能热电阻温度隔离式安全栅。将快速熔断丝、限流电阻和并联限压齐纳二极管设计在电路中，它即可以作为智能型隔离温度变送器用，也兼顾石油化工等行业现场爆炸场所中限制现场电器设备能量的要求。
本文以熱電阻信號為採集對象，依據本質安全防爆的基本原理，設計瞭工業智能熱電阻溫度隔離式安全柵。將快速鎔斷絲、限流電阻和併聯限壓齊納二極管設計在電路中，它即可以作為智能型隔離溫度變送器用，也兼顧石油化工等行業現場爆炸場所中限製現場電器設備能量的要求。
본문이열전조신호위채집대상，의거본질안전방폭적기본원리，설계료공업지능열전조온도격리식안전책。장쾌속용단사、한류전조화병련한압제납이겁관설계재전로중，타즉가이작위지능형격리온도변송기용，야겸고석유화공등행업현장폭작장소중한제현장전기설비능량적요구。
An industrial intelligent thermal resistance temperature isolated safety barrier collected thermal resistance signal is designed based the principal of intrinsic safety explosive protection in this paper. The rapid fuse, current-limiting resistance and parallel pressure limiting zener diode are designed in the circuit. The safety barrier could be used as intelligent isolated temperature transmitter and it also could meet the requirements of limiting the energy of site electrical equipment in explosive area of petrochemical industry.
