| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electronic level capable of measuring difference of elevation between two sites correctly even if using waving method searching the minimum value from readout numbers of height to select it as a height measured value while rocking a staff back and forth. <P>SOLUTION: The electronic level includes a staff reading-in means (S2) memorizing the time of day at that time, while reading a scale of the staff that is forced to rock back and forth to memorize the readout numbers of height, an approximation function determining means (S3) approximating the readout numbers of height read-in by the staff reading means concerned with a quadratic function of time, and a measured value calculating means (S4) taking the minimum value of quadratic function approximated by approximation function determining means as a height measured value. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
