Compressor

To provide a compressor capable of detecting capacitance and measuring the quantity of a refrigerator oil with a low cost and simple configuration. A compressor of the present invention is provided with: an airtight container; a compressing mechanism unit that compresses a refrigerant gas in the airtight container; one connecting terminal, which is provided to penetrate the airtight container fromthe inside to the outside, and which is electrically insulated from the airtight container; and one electrode, which is electrically and mechanically connected to the connecting terminal in the airtight container, and which is disposed by having an electrode surface face the inner surface of the airtight container, said one electrode generating capacitance between the electrode surface and the inner surface of the airtight container. 本发明提供种通过低价且简单的结构就能够检测静电电容而测定冷冻机油的油量的压缩机。该压缩机具备：密闭容器；在密闭容器内对制冷剂气体进行压缩的压缩机构部；以贯通密闭容器的内外的方式进行设置并与密闭容器电绝缘的个连接端子；以及在密闭容器内与连接端子电连接及机械连接，以使电极面与密闭容器的内侧面相对的方式进行设置，在电极面与密闭容器的内侧面之间产生静电电容的个电极。