Small totally enclosed heliumcompressor is a componend equipment of G-M refrigerator. It is widely used in space environment simulation equipments, vacuum cryopump and vacuum coating equipments etc.
小型全封闭式氦气压缩机是G-M制冷机的配套设备，广泛应用于空间环模设备、真空低温泵、真空镀膜等。
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The system can pump the helium in the gasbag back to the high-pressure gas storage tank through the compressor or control the exhaust valve to exhaust so as to adjust buoyancy force.