To ensure high accuracy and response by providing a metal housing comprising a sleeve having first and second open end parts, a metal plate closing the open end part of sleeve, and a sensor element secured to touch the metal plate thermally.
The temperature sensor comprises a metal housing 52 of threaded annular sleeve having a central passage 54, and a top plate 56 soldered to the first end part of housing 52 so that one end part of the passage 54 is closed. The plate 56 is made of a thin plate of beryllium copper and a temperature dependent resistance sensor element 58 is bonded to the plate 56 by an adhesive 59. The element 58 includes a lead wire 60 to be connected with an insulated signal transmission cable 62 while penetrating a metal bottom cover 64. The cable 62 has a shield for preventing noise from being introduced to a signal generated from the element 58, and an insulator withstanding against high temperature. The passage 54 is filled with an epoxy bond 66 having low thermal conductivity.
FUGUI HEE
FURANSHISUKO CHIARIRI
DEBITSUDO II FUOORAA
KENESU DEII KOOBII
