针对激光器在实验过程中出现的问题，采用了过流保护、光耦合器隔离，电磁屏蔽等措施，优化了激光器的性能。
To deal with the problems in the experiment, the current foldback, optical coupler insulation and electromagnetic shielding was used to optimize the laser's performance.
此方法以初冷器前吸力值的大小，通过变送器反馈给电磁阀和液力耦合器，实现煤气风机的吸、压力自动调节，不但比改造前传统的“大、小循环”方便、稳定，而且节能、环保、低噪音。
In this way, the cycle is not only more convenient and stable than traditional big-small cycle, but also the energy saving, environment protection and low noisy can be realized.
此外，光耦合器提供极好的EMI，且不辐射电磁波，这是目前医疗设备鉴定的重要标准。
In addition, optocouplers provide excellent emi and emit no electromagnetic waves, which is now an important measure for medical-equipment certification.
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