其主要技术指标如稳定性、线性、增益、温度稳定性等并不亚于专用精密仪用放大器。
Its main technical specifications such as stability, linearity, magnification and stability of temperature are similar to that of precise amplifiers.
能谱仪上用的线性放大器，除了有足够的放大倍数外，还须有良好的线性和宽广的动态范围。
The linear amplifier on the spectrometer, besides it has the enough enlargement factor, and needs the good linearity and the broad dynamic range.
本文用3厘米微波干涉仪，以锁相放大器作检测器，测量了微波通过气体放电管时所引起的相移。
A 3 cm X-band microwave interferometer with a phase-locked amplifier as detector has been used to measure small phase changes as a microwave beam passing through the gas discharge tube.
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