| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid level meter which inexpensively, stably, and accurately measures a liquid level of approximately 5 to 100 m.SOLUTION: A liquid level gauge includes: a balancer 1 mounted with a liquid level meter 2 for measuring a liquid level distance 8 and transmitting a liquid level distance measurement value; a length measurement cable having a scale 9 for suspending the balancer 1; a length measurement cable having the scale 12; a control part 13 for determining a liquid level distance reference value for the liquid level meter 2 and controlling the length measurement cable length 7 having the scale; a length measurement cable length measurement part 14 for measuring the length measurement cable length having the scale measurement value from a length measurement reference height 10 to a connection point with the length measurement cable having the scale 9 and the balancer 1; and a calculation device 15 for receiving the liquid level distance measurement value measured by the liquid level meter 2 and obtaining a distance between the measurement reference height 10 and the measurement liquid level 5 by adding the liquid level distance measurement value to the measurement value of the length measurement cable having the scale.SELECTED DRAWING: Figure 1 |
