CAJ | 학술논문

现存压力变送器传感器温压补偿采用点对点式的串行温压补偿法，该方法存在温压补偿耗时长、单位时间内产品产能低、标定流程中设备能耗损耗高以及温压补偿设备的维护和维修成本高等缺陷。考虑不改变现有设备平台和开发平台，提出一种以HART总线为基础，采用自拟规约协议的并行法应用于压变温补系统中，实现待补偿压力传感器的压力、温度和电流标定的同步并行采样。实际的研发与应用验证了规约协议并行法能够有效地解决串行温压补偿方法中存在的诸多问题。
현존압력변송기전감기온압보상채용점대점식적천행온압보상법，해방법존재온압보상모시장、단위시간내산품산능저、표정류정중설비능모손모고이급온압보상설비적유호화유수성본고등결함。고필불개변현유설비평태화개발평태，제출일충이HART총선위기출，채용자의규약협의적병행법응용우압변온보계통중，실현대보상압력전감기적압력、온도화전류표정적동보병행채양。실제적연발여응용험증료규약협의병행법능구유효지해결천행온압보상방법중존재적제다문제。
Existing temperature and pressure compensation use point to point serial method for pressure transmitters, this method features the defects of time consuming, low product capacity in unit time, high energy consumption of equipment in calibration process, and high maintenance costs of the temperature and pressure compensation devices, etc. , on the basis of HART bus and keeping existing equipment platform and development platform unchanged, the parallel method using self-draw specification protocol is proposed to be applied in the temperature and pressure compensation system, to implement synchronous parallel sampling for pressure, temperature and calibration current of the pressure transducer to be compensated. Practical R&D and application verify this parallel method can effectively solve many problems existing in serial temperature and pressure compensation method.