铷频标物理部分的改进与长期稳定度的测量

为了提高铷频标长稳，消除老化漂移，我们用不同同位素的特殊比例、几种不同缓冲气体的特殊比例、化学性能稳定的特殊玻璃来充制铷吸收泡．通过较长时问的观测，改进后的铷频标长稳和短稳兼而优之，物理部分温度系数指标提高一个数量级，基本消除了了铷频标的老化漂移．

The Improvement of Physics Package and the Long-term Stability Measurement for Rb Frequency Standard

For eliminating the aging of Rb frequency standard to improve long-term stability.a special ratio for different isotopes, a special ratio for defferent buffer gases and a special kind of glass are adopted to make Rb absorption cell.The measurements made for long time have shown that both of long-term and short-term stabilitied are improved and good.The temperature coefficient of physics package is improved by one order of magnitude and the aging is eliminated.