公开(公告)号：US20190227020A1

公开(公告)日：2019-07-25

申请号：US16309532

申请日：2017-06-08

Applicant: Mitsubishi Electric Corporation

Inventor： Taichiro TAMIDA ,  Takahiro INOUE ,  Takashi HASHIMOTO ,  AKIHIKO IWATA ,  Shuhei KOYAMA ,  Takahiko KOBAYASHI

IPC: G01N27/22 ,  G01N33/28 ,  G01F23/26 ,  H02P27/08 ,  H02M7/5387 ,  F25B31/02

Abstract: Provided is an electrostatic capacitance detection device including: an electrode pair including a pair of electrodes, the electrode pair being arranged inside a compressor configured to compress refrigerant; a capacitor being connected in series to the electrode pair; an inverter having one of power lines connected to one end of series-connected electrode pair and capacitor, and is configured to drive the compressor, the power lines being used for driving the compressor; and a voltage detecting unit configured to measure a voltage between the pair of electrodes of the electrode pair.