公开(公告)号：US4420965A

公开(公告)日：1983-12-20

申请号：US179938

申请日：1980-08-21

申请人： Thomas P. Farkas ,  Gary D. Burr ,  Robert W. Smith

发明人： Thomas P. Farkas ,  Gary D. Burr ,  Robert W. Smith

IPC分类号： G05D23/19 ,  G01M17/06

CPC分类号： G05D23/19

摘要： A closed loop control apparatus utilizes a cooling effect sensor to measure the cooling capacity of a fluid in a supply conduit connected to one or more thermal loads. The sensor includes an electrical heater that is regulated to heat a sampled portion of the cooling fluid at a known rate, and a temperature sensor positioned downstream of the heater to measure the temperature of the heated fluid and thereby determine the cooling effect or capacity of the fluid. A control signal developed by the temperature sensor is fed back to a flow modulating valve that adjusts the flow of cooling fluid to the thermal loads.

摘要翻译： 闭环控制装置利用冷却效应传感器来测量连接到一个或多个热负荷的供应管道中的流体的冷却能力。 传感器包括电加热器，其被调节为以已知速率加热冷却流体的采样部分，以及位于加热器下游的温度传感器，以测量加热流体的温度，从而确定冷却效果或容量 流体。 由温度传感器开发的控制信号被反馈到调节流向热负荷的冷却流体的流量调节阀。

公开(公告)号：US4257552A

公开(公告)日：1981-03-24

申请号：US943300

申请日：1978-09-17

申请人： Thomas P. Farkas ,  Gary D. Burr

发明人： Thomas P. Farkas ,  Gary D. Burr

IPC分类号： G05D23/19 ,  G05D23/00 ,  F24F7/00 ,  H02B1/00

CPC分类号： G05D23/19

摘要： A closed loop control apparatus utilizes a cooling effect sensor to measure the cooling capacity of a fluid in a supply conduit connected to one or more thermal loads. The sensor includes an electrical heater that is regulated to heat a sampled portion of the cooling fluid at a known rate, and a temperature sensor positioned downstream of the heater to measure the temperature of the heated fluid and thereby determine the cooling effect or capacity of the fluid. A control signal developed by the temperature sensor is fed back to a flow modulating valve that adjusts the flow of cooling fluid to the thermal loads.

摘要翻译： 闭环控制装置利用冷却效应传感器来测量连接到一个或多个热负荷的供应管道中的流体的冷却能力。 传感器包括电加热器，其被调节为以已知速率加热冷却流体的采样部分，以及位于加热器下游的温度传感器，以测量加热流体的温度，从而确定冷却效果或容量 流体。 由温度传感器开发的控制信号被反馈到调节流向热负荷的冷却流体的流量调节阀。