Abstract: A measuring apparatus for the three-dimensional geometric acquisition of surroundings by means of a rotating transceiver platform and a multiplicity of transmission channels for emitting pulsed distance measurement beams, wherein in each case a different elevation with respect to a reference plane orthogonal to the rotation axis is scannable with each of the transmission channels. Furthermore, the measuring apparatus comprises a receiving unit having a sensor arrangement of semiconductor photomultiplier sensors, wherein the number of sensors is less than the number of transmission channels, and the transmitting unit and the receiving unit are configured such that at least two of the transmission channels are assigned to a common sensor, which is configured for generating distance measurement data with respect to the at least two transmission channels.

Abstract: A device for determining the relative heights between two points in direction gravity acts and inclination sensor for single- or multi-axis determination of an inclination relative to the vertical direction defined by the gravitational field. The device can include: a connecting hose filled with a liquid; a first and a second pressure sensor arranged at opposite ends of the hose; a processor to determine a relative height between a first reference point with a fixed positional relationship to the first pressure sensor and a second reference point with a fixed positional relationship to the second pressure sensor; a synchronizer; a respective wireless module at each of the hose. The synchronizer can synchronize a first time point with a second measurement time point, wherein the processor is configured to assign the measured hydrostatic pressures to the same, common measurement time point on the basis of the synchronized measurement time points.

Abstract: A measuring appliance for performing distance measurements to an object, with an optical transmitter channel, an optical reception channel, a reference light path and an evaluation device, wherein the optical transmitter channel comprises a transmitter unit and an optical outlet element and the optical reception channel comprises an optical inlet element and a reception unit. The measuring appliance facilitates distance measurements over a measurement light path to the object and back again and over a reference light path. An attenuation device renders a desired signal attenuation attainable in the reference light path. The reference light path is laid out in such a way that it receives laser measurement radiation prior to the passage through the optical outlet element, guides said laser radiation without contact with the surroundings to the attenuation device and forwards an attenuated portion to the reception unit through the optical inlet element.

Abstract: Surveying device comprising a base defining a base axis (A), a support structure arranged to be rotatable around the base axis (A) and defining a rotation axis (B), a light emitting unit for emitting measuring signal and a light receiving unit comprising a detector for detecting reflected measuring signal. A rotation unit is mounted on the support structure for providing emission and reception of measuring light in defined directions, wherein the rotation unit comprises a rotation body which is mounted rotatable around the rotation axis (B) and the rotation body comprises a scanning mirror which is arranged tilted relative to the rotation axis (B). The device comprises at least one projector fixedly arranged with the support structure, defining a particular optical axis and configured to direct a light pattern at a scene, wherein position and shape of the pattern are controllable by the controlling and processing unit.

Abstract: A laser scanner includes multiple measuring beams for optical surveying of an environment. The laser scanner is configured to provide scanning with at least two different multi-beam scan patterns, in which each multi-beam scan pattern is individually activatable by a computing unit of the laser scanner.

Abstract: An optical distance meter configured to carry out a distance measurement in a first measuring mode, in which the distance meter is set for distance measurement on a retroreflective target, and a second measuring mode, in which the distance meter is set for distance measurement on a diffusely scattering target. In this case, a first aperture of the receiving channel is set in the first measuring mode, which is smaller than an aperture set in the second measuring mode.

Abstract: Method and opto-electronic measuring device for measuring of an object's surface with a measuring rate of at least one thousand object points per second. Using a high-speed autofocus optical module comprising at least one variable focal length lens or reconfigurable optical phase plate having a response time of under 1ms, situated in an emitting beam path, there is a real-time focus adaption of the measurement beam within a single object point measurement period.

Abstract: A light receiver designed to determine a position or orientation relative to a reference light wherein the light receiver comprises an elongated rod-shaped light receptor with two ends, a light coupler, a light guide, and light detection means at both ends and a signal processor to process the electric signals of the detection means and to determine the relative position and/or orientation by a comparative evaluation of the electric signals. The light guide serves as a light propagation path of defined length for light coupled into the light guide by the light coupler and the signal processor determines the position and/or orientation based on light propagation speed of the reference light propagating in the light guide.

Abstract: A surveying device with a targeting unit carried by a support, the targeting unit being arranged rotatable relative to a vertical axis and a tilt axis as a first and a second axis of rotation, for emitting a distance measurement beam in an emission direction into free space, the emission direction being variable with respect to the vertical axis and the tilt axis. The device further comprises a beam deflection element such as a partially transparent rotatable mirror, situated in the targeting unit and being rotatable about a deflection axis as a third axis of rotation. The deflection axis is congruent to the tilt axis and the beam deflection element is arranged in such a way in the distance measurement beam path that the emission direction can be varied with respect to the deflection axis.

Abstract: A method for controlling an opto-electronic measuring device for radiation based object point measuring such as a laser tracker, laser scanner, multi beam scanner, laser profiler, scanning total station, flash lidar, airborne scanning lidar or scanning multi station. The power of the emitted measurement radiation is object individually automatically varied specific for a direction and distance to respective objects whereby the power is adjusted in such a way that it does not exceed a predefined distance dependent power limit applying to the respective object distance precisely when the measurement radiation is emitted in the respective object direction.

Abstract: Optoelectronic surveying device for distance and/or position determination comprising a radiation source for generating optical measurement radiation of a first wavelength, wherein the measurement radiation is emitted in an oriented manner into free space. The radiation source is designed such that the first wavelength is in the range between 1210 nm and 1400 nm and the power of the emitted measurement radiation is at least 14 mW in the chronological and spatial average.

Abstract: A distance measuring device comprising a sensor for highly accurate distance measurement with a very high dynamic range and range walk compensation, said sensor being provided by means of an array of single photon avalanche photodiodes.

Abstract: A measuring device comprises a base, a case, and a rotating member rotatable about the axis of rotation. The rotating member comprises a transmission unit configured to emit transmission beams to different beam directions. The rotating member further comprises a receiver unit configured to receive returning transmission beams. A longitudinal member is fixed to the base and extends in a central area of the rotating member along the axis of rotation over a range including the transmission unit and the receiver unit. Two bearing members are arranged on the longitudinal member and on the rotating member. In the direction of the axis of rotation, the transmission unit and the receiver unit are located in a range between the two bearing members. The measuring device has a high aiming accuracy and low hysteresis of the turning transmission beams.

Abstract: An absolute distance measuring method and device including a transmission unit having a laser array comprising multiple measurement laser emitters arranged along a laser array axis and a receiver unit having at least one receiver array comprising multiple measurement receivers arranged along a receiver array axis for measuring of an absolute distance based on a respective detected transmission beam and the principle of time-of-flight. The laser array comprises at least a first reference laser emitter and the receiver array comprises at least a first reference receiver. The reference laser emitter and reference receiver define an internal absolute distance reference beam path for calibration of the device with respect to said measuring of absolute distance.

Abstract: A device for determining the relative heights between two points in the direction in which gravity acts and an inclination sensor for single- or multi-axis determination of an inclination relative to the vertical direction defined by the gravitational field.

Abstract: A distance measuring method and an electronic laser distance measuring module, in particular for use in a distance measuring apparatus, especially configured as a laser tracker, tachymeter, laser scanner, or profiler, for fast signal detection with an analog-to-digital converter, wherein conversion errors that arise in the context of a signal digitization, in particular timing, gain and offset errors of the ADC, are compensated for by means of variation of the sampling instants.

Abstract: A measuring device, in particular a tachymeter, laser scanner, profiler, or laser tracker, having an electronic laser distance measuring module, which comprises an optical transmitting channel having a transmitting unit and an optical receiving channel having a receiving unit for laser measuring radiation, wherein the beam guiding in the electronic laser distance measuring module is implemented by means of fiber optics, and wherein a settable attenuation unit based on an optically active crystal for attenuating the laser measuring radiation generated by the transmitting unit is provided in the optical transmitting channel.

Abstract: A surveying device for determining the position of a target, comprising a means for orienting a target axis of the surveying device towards the target point, an angle-measuring functionality for the highly precise detection of the orientation of the target axis, and evaluation means for data storage, a height measuring system for determining a height of the surveying device above the ground by means of triangulation, wherein the height measuring system comprises at least one laser plummet for emitting a laser beam along a standing axis of the surveying device onto a ground point, and a detection unit comprising a line sensor for detecting a diffuse backscattering of the laser beam, and wherein the height measuring system for determining a height of the surveying device above the ground point is designed based on a position of the diffuse backscattering on the line sensor.

Abstract: A target reflector search device. This device comprises an emitting unit for emitting an emission fan, a motorized device for moving the emission fan over a spatial region, and a receiving unit for reflected portions of the emission fan within a fan-shaped acquisition region, and a locating unit for determining a location of the reflection. An optoelectronic detector of the receiving unit is formed as a position-resolving optoelectronic detector having a linear arrangement of a plurality of pixels, each formed as an SPAD array, and the receiving unit comprises an optical system having an imaging fixed-focus optical unit, wherein the optical system and the optoelectronic detector are arranged and configured in such a way that portions of the optical radiation reflected from a point in the acquisition region are expanded on the sensitivity surface of the optoelectronic detector in such a way that blurry imaging takes place.

Abstract: A distance measuring method and an electronic laser distance measuring module, for determining a distance to a target object, wherein the transmitted signal is emitted with selected polarization states by a transmitting unit of the laser distance measuring module. The transmitted signal is emitted and the received signal is acquired such that a polarization identifier of the polarization state of the transmitted signal adheres to the received signal and an evaluation of the received signal is derived based on the polarization identifier, to take into consideration multiple reflections during the processing of the received signal to determine the distance.