| 摘要 |
PURPOSE:To make safely the measurement of the surface level of a liquid in a tank, by transmitting the position of a float always floating and following on the liquid surface in the tank to an integrating turning number indicator through a sprocket wheel engaging with a wire or tape connected to the float. CONSTITUTION:It is constituted that a float 2 floating always on the optional liquid surface in a main body 1 of a tank is made to follow the liquid surface always under a constant state by a wire or a tape 3 and a weight or a spring 4 giving suitable tension to another end of the wire or the tape 3. Further, the position of the float 2 is transmitted to an integrating turning number indicator displaying 0-9 discrimination mark at every figures through a sprocket wheel 6 gearing with the wire or tape connected to the float 2 and a reflection type photosensor head is made to confront to the display surface of each figure. By such a constitution, the measurement of the liquid surface in the tank is secured because an electric circuit is not used for the main body of the tank and its neighborhood. |
