| 摘要 |
PROBLEM TO BE SOLVED: To accurately measure a distance from a measurement point to a measurement target. SOLUTION: When it is necessary to input the altitude of a measurement target, the altitude of the measurement target is inputted. Otherwise, 0 is inputted (S1). Measurement target altitude data are stored in the memory of an operation means (S2). Then, when an angle of depression is measured (S3), its measurement data are stored in the above operation means (S4) and then an altitude is automatically measured (S5), high-speed measurement data are stored in the memory of the operation means (S6), the above operation means uses the altitude difference data between the above measurement data of angle of depression, altitude measurement data and the measurement target altitude data to calculate distance data between a measurement target and a measurement point, the distance measurement data are stored in a memory (S7), the distance data are outputted to the above liquid crystal display drive means, and the liquid crystal display drive means shows the above distance data at the above display body. |
