Abstract: A surveying system, comprises a support; a rotating mirror unit including a mounting structure, a motor mounted on the mounting structure and having a shaft rotatable about a first axis, and a mirror mounted on the shaft; a measuring unit including a mounting structure and a light source and optics mounted on the mounting structure for directing a beam of measuring light onto the mirror surface; and a window mechanically connecting the mounting structure of the measuring unit and the mounting structure of the rotating mirror unit.

Abstract: A surveying system, comprises a support; a rotating mirror unit including a mounting structure, a motor mounted on the mounting structure and having a shaft rotatable about a first axis, and a mirror mounted on the shaft; a measuring unit including a mounting structure and a light source and optics mounted on the mounting structure for directing a beam of measuring light onto the mirror surface; and a window mechanically connecting the mounting structure of the measuring unit and the mounting structure of the rotating mirror unit.

Abstract: An optical measurement system comprises a first housing body and a second housing body which can be rotated relative to the first housing body about a second axis of rotation, wherein the second housing body contains a measurement telescope, an inner roller bearing support fixed to the second housing body and protruding into the first housing body; an outer roller bearing support fixed to the first housing body; a drive disc fixed to the inner roller bearing support; wherein a motor having a motor shaft is attached to the first housing body in such a way that the motor shaft or a wheel fixed to the motor shaft is positioned on the drive disc and is pressed against said disc by a spring force orientated transversely to the second axis of rotation, and wherein the motor shaft or the wheel is coupled to the drive disc in a frictional fit.

Abstract: A geodetic surveying system, comprising: a first measurement unit and a second measurement unit. Each of the first and the second measurement unit is configured to perform a measurement for acquiring positioning data of the respective measurement unit. The system further comprises a first inclinometer for acquiring inclination data of the first inclinometer which represent a vertical inclination measured at the first measurement unit; and a second inclinometer for acquiring inclination data of the second inclinometer, which represent a vertical inclination measured at the second measuring unit. The geodetic surveying system is configured to determine a relative orientation angle between the first inclinometer and the second inclinometer in a horizontal plane relative to a vertical adjustment of the geodetic surveying system, depending on the inclination data of the first inclinometer and the second inclinometer.

Abstract: An optical measurement system comprises a first housing body which can be rotated relative to a base about a first axis of rotation; a second housing body which can be rotated relative to the first housing body about a second axis of rotation, wherein the second housing body contains a measurement telescope, the measurement axis of which is orientated transversely to the second axis of rotation; an inner roller bearing support fixed to the second housing body and protruding into the first housing body; an outer roller bearing support fixed to the first housing body; a drive disc fixed to the inner roller bearing support; wherein a motor having a motor shaft is attached to the first housing body in such a way that the motor shaft or a wheel fixed to the motor shaft is positioned on the drive disc and is pressed against said disc by a spring force orientated transversely to the second axis of rotation, and wherein the motor shaft or the wheel is coupled to the drive disc in a frictional fit.

Abstract: A motor drive apparatus for a surveying instrument and a control method for controlling a surveying instrument enables a fast rotation of an instrument axis with high angular resolution. The motor drive apparatus for a surveying instrument includes a first motor for rotating an instrument axis. The first motor includes a stator and a rotor having a rotation axis and a plurality of step positions relative to the stator. The motor drive apparatus also includes a mounting unit for mounting the first motor so as to be pivotable around the rotation axis and an adjusting unit for rotating the stator of the first motor around the rotation axis.

Abstract: A positioning device comprises a frame (60); a motor (61) having a drive shaft; a spindle (63) having a first end (71) and a second end (76) and being rotatable in relation to the frame (60); a coupling (62) resiliently connecting said drive shaft to said first end (71) of said spindle (63) such that the spindle (63) rotates when the drive shaft of the motor (61) rotates; and a support assembly (72, 74, 75) elastically supporting at the frame (60) at least one of the second end (76) of the spindle (63) and the motor (61).

Abstract: A motor drive apparatus for a surveying instrument and a control method for controlling a surveying instrument enables a fast rotation of an instrument axis with high angular resolution. The motor drive apparatus for a surveying instrument includes a first motor for rotating an instrument axis. The first motor includes a stator and a rotor having a rotation axis and a plurality of step positions relative to the stator. The motor drive apparatus also includes a mounting unit for mounting the first motor so as to be pivotable around the rotation axis and an adjusting unit for rotating the stator of the first motor around the rotation axis.

Abstract: A positioning device comprises a frame (60); a motor (61) having a drive shaft; a spindle (63) having a first end (71) and a second end (76) and being rotatable in relation to the frame (60); a coupling (62) resiliently connecting said drive shaft to said first end (71) of said spindle (63) such that the spindle (63) rotates when the drive shaft of the motor (61) rotates; and a support assembly (72, 74, 75) elastically supporting at the frame (60) at least one of the second end (76) of the spindle (63) and the motor (61).

Abstract: A setting out device comprises a rod which can be supported at a target point in the area surrounding a point to be set out, a reflector which is arranged on the rod for tachymetric detection of the target point, a unit provided at the rod for transmitting information to and receiving information from a tachymeter, and an auxiliary setting out device which is arranged or can be arranged in a definite position in relation to the reflector for converting position correction information with respect to the point to be set out that was transmitted to the transmitting and receiving unit into a mark in the terrain representing the point to be set out. In this way, it is possible to set out possible projected points in the terrain within a short period of time and with great accuracy.

Abstract: A device for horizontal and vertical adjustment in geodetic devices comprises within its housing, a horizontal adjusting system comprising a first fine adjustment drive for rotation of the device about a vertical standing axis and a vertical adjusting system comprising a second fine adjustment drive for the movement of a telescope which is mounted in the support of the device so as to be swivelable about a horizontal tilt axis. A coaxial drive, known per se, is arranged at the support of the device and has two coaxially mounted shafts, each having a rotating knob, for initiating the rotation and/or movement of the respective parts and subassemblies. Each of the two fine adjustment gear units comprises a worm and a worm gear with a friction clutch and can be actuated jointly from a location for generating movement in two movement directions running vertical to one another or at an angle to one another.

Abstract: A method for target seeking in geodetic survey measurements comprises the steps of generating at least a first light bundle by a measurement device from a light source arranged therein, the light bundle periodically pivoting back and forth or revolving about the standing axis of the measurement device and fanning out in the vertical plane and being sent to at least one receiver arrangement arranged in at least one target station arranged at a distance from the measurement device.