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11. 发明申请

US20050235758A1 Low power ultrasonic flow meter 有权
标题翻译：低功率超声波流量计
公开(公告)号：US20050235758A1
公开(公告)日：2005-10-27
申请号：US10810882
申请日：2004-03-26
申请人： Anthony Kowal , Benjamin McDonald , Xue-Song Li
发明人： Anthony Kowal , Benjamin McDonald , Xue-Song Li
IPC分类号： G01F1/66 , G01F15/06 , G01R11/32
CPC分类号： G01F15/06
摘要： A flow meter is powered by a loop power supply which supplies a supply voltage. A load is powered by a load voltage and includes at least a processor for calculating a flow rate, an ultrasonic transducer power circuit, and an ultrasonic transducer receiving circuit. A power regulating circuit is disposed between the loop power supply and the load. The power regulating circuit includes a power converter responsive to the supply voltage to vary the load voltage in response to a control signal, a safe storage device between the converter and the load for storing power when not needed by the load and for delivering power to the load when required by the load, and a control subsystem for providing the control signal to the converter based on the setting of the loop power supply by the load. A power management subsystem is configured to detect the load voltage and to reduce the power consumption of the load at one or more predetermined set points.
摘要翻译：流量计由提供电源电压的回路电源供电。负载由负载电压供电，并且至少包括用于计算流量的处理器，超声波换能器功率电路和超声换能器接收电路。功率调节电路设置在环路电源和负载之间。功率调节电路包括响应于电源电压的功率转换器，以响应于控制信号改变负载电压，转换器和负载之间的安全存储设备，用于在负载不需要时存储电力，并将功率传递到负载要求时的负载;以及控制子系统，用于根据负载对环路电源的设定，向转换器提供控制信号。电力管理子系统被配置为检测负载电压并且减少在一个或多个预定设定点处的负载的功率消耗。

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