| 摘要 |
FIELD: medicine; measurement technology. SUBSTANCE: device has object holder 11 for fixing contrivance 35 for object 15, vacuum channel 40, annular sealing member 54 preferably, which is brought in contact with surface to form vacuum chamber 66 with it, vacuum passage 46, 47, 49, 31 passing between vacuum chamber 66 and vacuum channel 40, and air-permeable dust absorber 56. Absorber 56 is disposed for removal in vacuum chamber 66 at joint between vacuum passage and vacuum chamber. Object may be rejected electrode unit 15, which has electrode 15 and dust absorber 51. EFFECT: improved precision of measurement. |
