Horizontal position error correction mechanism for electronic level

摘要

In a horizontal position error correction mechanism for an electronic level according to the present invention, a collimation optical system collimates a level rod, and calculation processing means processes an output signal of a photoelectric converter by calculation to calculate a difference of elevation and so forth. Compensator means formed on a telescope optical system for maintaining a horizontal position corrects an inclination of the electronic level to maintain the horizontal position of the electronic level, and a suspended optical member suspended from the compensator means is rocked in forward and backward directions and leftward and rightward directions in response to an inclination of the compensator means. Inclination angle detection means detects an inclined angle of the suspended optical member, and the calculation processing means calculates an inclination angle data signal of the compensator means based on a detection signal of the inclination angle detection means so that the horizontal position error of the suspended optical member can be corrected.