公开(公告)号：US3701281A

公开(公告)日：1972-10-31

申请号：US3701281D

申请日：1970-10-06

申请人： CHEMIEFASER LENZING AG

发明人： SOGNER DOMINIK

IPC分类号： G08C19/00 ,  G01K13/08 ,  G01R19/22 ,  G01K7/20

CPC分类号： G01R19/22

摘要： A circuit arrangement for measuring a characteristic of a moving member wherein an electric current, representative of the characteristic is generated on the moving member and the value thereof indicated on an instrument mounted on associated fixed structure. The circuit includes a sensing element forming an arm of a bridge network, the output of which provides an input to an operational amplifier. The sensing element, bridge and amplifier, along with a suitable power supply, are mounted on the moving member. The indicating instrument receives the output of the operational amplifier through slip rings or the like and the circuit compensates for the resistance variations normally encountered in slip ring coupling. In a particular application, the circuit arrangement is adapted to measure the temperature of heated rolls in a rolling mill, the sensing element (in this case a resistance thermometer), power supply, bridge and operational amplifier being mounted to rotate with the roll shaft and coupled via slip rings to the indicating instrument.

摘要翻译： 一种用于测量移动构件的特性的电路装置，其中在移动构件上产生代表特性的电流及其在安装在相关联的固定结构上的仪器上指示的值。 电路包括形成桥接网络的臂的感测元件，其输出为运算放大器提供输入。 感测元件，桥和放大器以及合适的电源安装在移动构件上。 指示仪器通过滑环等接收运算放大器的输出，并且电路补偿滑环联接中通常遇到的电阻变化。 在具体应用中，电路装置适于测量轧机中的加热辊的温度，感测元件（在这种情况下为电阻温度计），电源，桥和运算放大器被安装为与辊轴一起旋转， 通过滑环耦合到指示仪器。

公开(公告)号：US3044405A

公开(公告)日：1962-07-17

申请号：US77577358

申请日：1958-11-24

申请人： DUNLOP RUBBER CO

发明人： HAROLD BENT WILLIAM

IPC分类号： B60T13/14 ,  B62D5/07

CPC分类号： B62D5/07 ,  B60T13/148