热工水力实验测量仪表需要高效准确地完成计量校准和量值溯源，而目前基于过程校验仪的原位计量校准存在较多影响因素，难以准确量化不确定度分量。可柔性配置的原位校准标准装置主要基于校准溯源性评定技术、总线兼容技术、柔性化及并行测试技术进行设计，可柔性适应多种规模和仪表类型的反应堆工程热工实验测试系统。该装置的综合不确定度满足大部测试仪表的量值溯源要求，可有效提升实验用测试仪表的校准效率，是实验室计量校准模式的有益补充。

Thermal-hydraulic experiment instrument need to achieve measurement calibration and measurement traceability efficiently and accurately, the influence factors of in-situ calibration mode based on process calibrator are difficult to quantification. Flexible configured in-situ calibration equipment is designed based on calibration traceability assessment technique, bus compatibility technology, flexible and parallel test technology. The in-situ calibration equipment adapt to a variety of sizes and types thermal experiment apparatus instruments calibration.The synthesize uncertainty and well-adaptable of in-situ calibration system can meet the need of various type of reactor engineering experiment instrument. The in-situ calibration system is a beneficial complement to the laboratory calibration.