G - Physics – 01 – J
Patent
G - Physics
01
J
G01J 5/08 (2006.01)
Patent
CA 2059102
A temperature monitoring unit that allows to improve temperature monitoring sensitivity of a rotary heating element and to monitor temperature of a larger heating element is provided. The temperature monitoring unit is comprised of a mirror which is provided in the vicinity of a rotary heating element, reflects infrared rays generated from a thermal point on the heating element toward outside in the radial direction thereof and reciprocates linearly in the radial direction, a condenser lens provided outside of the heating element for condensing the infrared rays reflected by the mirror, an infrared sensor provided on the condenser section, a slit plate which is provided on the mirror side of the lens and which has an opening which is long in the direction approximately perpendicular to the surface of the heating element, and an image processor for inputting the output of the infrared sensor. The sensitivity is improved because infrared rays from around the thermal point of the heating element is blocked by the slit plate. Moreover, the visual field becomes long in the radial direction of the heating element, so that the moving speed of the mirror can be increased.
Hisamatsu Kenichi
Kaneko Shozo
Watanabe Nobuya
Yoshikawa Keiji
Yoshioka Shunsuke
Mitsubishi Jukogyo Kabushiki Kaisha
Riches Mckenzie & Herbert Llp
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