| 摘要 |
PURPOSE:To obtain the title apparatus not requiring labor and a time in the correction of a temp. error or the assembling control of a complicated instrument main body, by mounting an exterior cylinder divided in the longitudinal direction thereof and molded into a cylindrical shape after the insertion of a lead wire to protect the lead wire. CONSTITUTION:A heat-sensitive body 22 made of SiC changing in its resistance value by temp. is fixed to a heat-sensitive head part 21 made of stainless steel and a lead wire 27 is connected to the terminal plate 23 of the heat-sensitive body 22 through a platinum wire 26. An adjusting printed circuit board 29 having a semisolid volume 30 for correcting the temp. error of the heat-sensitive body 22, a fixed resistor 22 and a connector 31 is connected to the other end of the lead wire 27. A protective cylinder 33 has a diameter capable of permitting the adjusting printed circuit board 29 to pass and is fixed to the lower part of the heat-sensitive head part 21 to protect the heat-sensitive body 22. An exterior cylinder 24 is divided in the longitudinal direction thereof and formed into a cylindrical shape after the insertion of the lead wire 27 not only to support the protective cylinder 33 but also to protect the lead wire 27. Since the correction of a temp. error can be performed before the exterior cylinder 34 and the protective cylinder 33 are assembled, the heat capacity of the heat-sensitive body 22 is small and a time is not required in order to set the heat-sensitive body to definite temp. at the time of the correction of temp. |
