| 摘要 |
PURPOSE:To prevent the outside induction noise and to obtain an apparatus having high intensity, by applying epoxy group resin on the outside of a vessel including a sealed bound between the edge of a main body opening end of the vessel and the cover of the vessel and covering it, and moreover, covering a nonmagnetic metallic cylinder on the outside of the vessel. CONSTITUTION:A vessel 1 press-fixed a covering body 3 by indium is sealed on the upper tip face of a leg part outer wall face 21 of a main body of the vessel 1 provided with an infrared detection element which is operated in a cooling state. Further, a bonding agent 9 used epoxy group resin is applied on a part of the surface including this sealed bounds and the sealed bounds are covered perfectly. Moreover, a nonmagnetic metallic cap 10 e.g permalloy etc. is covered so as to cover the whole epoxy group resin. In this manner, the apparatus having high reliability is obtained by maintaining an airtightly covered state good for a long term and preventing the influence of the outer induced noise by the cap 10 and also, increasing the intensity against an accident. |
