专利汇可以提供System for measuring fluid flow专利检索,专利查询,专利分析的服务。并且A system for measuring fluid flow, and more specifically, a speedometer/odometer system for a sailboat or the like, includes a transducer mounted to tilt at an angle by fluid flowing there around. The transducer contains an elongated arcuate cavity with an electrically resistive element extending along the bottom of the cavity. As the angular tilt of the transducer is varied by varying fluid flow, a drop of mercury moves along the cavity making electrical contact with various points of the resistive element to vary the electrical resistance value of the transducer. An operational amplifier receives a signal from the transducer via a first summing resistor and passes the signal to a meter for providing a visual indication of the velocity of fluid flow or the speed of the boat. A second summing resistor of lesser value may be switched to the operational amplifier to provide an increased signal for an expanded scale of the meter to sense small incremental changes of the boat''s speed. A third summing resistor connects the operational amplifier to a potentiometer for generating an adjustable input signal to center the meter for the expanded scale readings. An integrating amplifier receives the signal from the transducer for advancing an odometer indicator in steps or increments such that a motor driving the odometer indicator will conserve power from the voltage source which may be small batteries.,下面是System for measuring fluid flow专利的具体信息内容。
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