公开(公告)号：US5844490A

公开(公告)日：1998-12-01

申请号：US844762

申请日：1997-04-22

申请人： Chung-Chien Lu ,  Eric Liu ,  His-Huang Lee ,  Tien-Tsai Lu

发明人： Chung-Chien Lu ,  Eric Liu ,  His-Huang Lee ,  Tien-Tsai Lu

IPC分类号： B01F15/00 ,  G08B21/00

CPC分类号： B01F15/00207 ,  Y10T137/0324 ,  Y10T137/0645

摘要： A monitoring device for a chemical reagent supply system includes a position voltage generator, mounted to a pump of the supply system, to monitor the expansion state of a bellows. The actual outflow of the chemical reagent is calculated by the position voltage generator. According to a demand signal from equipment needing the chemical reagent, which is processed to consider the viscosity of the chemical reagent, a theoretic demand outflow is calculated by the monitoring device. When the difference between the actual outflow and the theoretic demand outflow exceeds a permissible tolerance, the monitoring device raises an alarm signal to warn an operator and thereby to assure the accuracy of the chemical reagent supply system.

摘要翻译： 用于化学试剂供应系统的监测装置包括安装在供应系统的泵上的位置电压发生器，以监测波纹管的膨胀状态。 化学试剂的实际流出由位置电压发生器计算。 根据需要处理化学试剂的化学试剂的设备的需求信号，通过监测装置计算理论需求流出。 当实际流出和理论需求流出之间的差异超过容许公差时，监控装置提高报警信号，提醒操作者，从而保证化学试剂供应系统的准确性。