公开(公告)号：US3697726A

公开(公告)日：1972-10-10

申请号：US3697726D

申请日：1971-09-17

Applicant: ROSEMOUNT INC

Inventor： GERONIME ROBERT L

IPC: G01K13/08 ,  G05D23/24 ,  H05B6/14 ,  H05B1/02

CPC classification number: G01K13/08 ,  G05D23/24 ,  H05B6/145

Abstract: A temperature measurement and control device for rotating heated rolls, such as those used in the fiber processing industry. The temperature sensor is stationarily mounted and positioned in a slot at one end of a rotating roll, and the sensor is used for controlling power to a heater utilized with the roll. The sensor thus is used to control the temperature of the roll surface. At high roll speeds the thermal coupling between the sensor and the roll is adequate, but at lower speeds that are encountered during the slowing down and stopping of the rolls, the thermal coupling between the roll surfaces and the sensor reduces in efficiency and the sensor conducts a large proportion of heat to its mounting structure. The present device utilizes passing a current through the sensor to self-heat the sensor to compensate for this decrease in thermal coupling and resultant stem conduction error.

Abstract translation: 用于旋转加热辊的温度测量和控制装置，例如在纤维加工业中使用的那些。 温度传感器固定安装并定位在旋转辊的一端的狭槽中，传感器用于控制与卷筒一起使用的加热器的电力。 因此，传感器用于控制辊表面的温度。 在高滚动速度下，传感器和滚筒之间的热耦合是足够的，但是在滚筒减速和停止期间遇到的较低速度下，辊表面和传感器之间的热耦合效率降低，传感器传导 对其安装结构的热量很大。 本装置利用通过传感器的电流来自我加热传感器以补偿热耦合的这种降低以及由此产生的干线传导误差。