| 摘要 |
1,033,432. Automatic temperature control. LITTON INDUSTRIES Inc. April 4, 1963 [April 5, 1962], No. 13421/63. Heading G3R. [Also in Division G1] A chamber containing an instrument 30 (Fig. 7) is automatically maintained at a constant temperature by coarse and fine heater units. The coarse heater 131, comprising a wire mesh embedded in fibre glass, is controlled by a bimetallic switch 132 (Fig. 6), and the fine heater 133, comprising a resistance wire coating on the conductive housing 162, is fed from an amplifier 137, controlled by a thermistor 134. The switch 132 and thermistor 134 are located inside the housing 162, which is surrounded with heat insulating and shock absorbing material 165. |
