量子计量基准较传统计量基准有准确度高、可在多个地点复现等一系列显著优点,在近40年来得到了很快的发展。目前,长度、时间、电学等方面的量子基准已逐步建立,测量准确度提高了几个数量级。在新世纪中,量子计量基准将得到进一步发展和完善。 Compared with the traditional metrology datum, the quantum metrology datum has a series of remarkable advantages, such as high accuracy and recurrence in many places, and has been developed rapidly in the past 40 years. At present, the quantum benchmarks of length, time, electricity and so on have been gradually established, and the measurement accuracy has been improved by several orders of magnitude. In the new century, the quantum measurement benchmark will be further developed and improved.