Self-calibration dual-station laser horizontal height indicator

Abstract

The invention provides a self-calibration dual-station laser horizontal height indicator which comprises a base, adjustable seat legs, a lower cross beam, a middle cross beam, an upper cross beam, a vertical graduated scale, a horizontal laser range finder, a vertical laser emitter, a 45-degree semi-transmittance and semi-reflection mirror, a 45-degree reflector, a lifting pull ring, a gravity adjustment block, a lower cross beam driving mechanism and a middle cross beam driving mechanism, wherein the horizontal laser range finder and the 45-degree semi-transmittance and semi-reflection mirror are fixedly arranged on the lower cross beam; the 45-degree reflector is arranged on the middle cross beam through an angle rotating mechanism; transmittance holes are formed in the lower cross beam and the middle cross beam; a target is arranged on the base; the space positions of the vertical laser emitter, the transmittance holes and the target enable a laser beam output by the vertical laser emitter which naturally drops down to penetrate through the two transmittance holes in sequence and fall onto the target. The self-calibration dual-station laser horizontal height indicator can flexibly and selectively enlarge the distance according to a size of a detected object, so that a measurement distance and the height of the detected object can not be limited; the self-calibration dual-station laser horizontal height indicator can be used for geographical height measurement and object height measurement and is multi-purpose.

Description

technical field [0001] The invention belongs to the field of laser measurement, in particular to a self-calibrating double-station laser level altimeter. Background technique [0002] There are many demands for height measurement in national economic production, such as geological survey, building height measurement or relative height measurement of mountains, which can be called geographic height measurement; small height detection, mechanical parts size inspection, etc., can be called object height measurement . [0003] There are already many methods or instruments for measuring height. On the construction site of some construction projects, the instrument used by technicians for geographic altimetry work is theodolite. Theodolite consists of a telescope, a horizontal dial, a vertical dial, a level, and a base. When measuring, place the theodolite on a tripod, align the center of the instrument on the ground station with a vertical ball or an optical plummet, level the ...

AI Technical Summary

Problems solved by technology

[0006] 1. Due to different measurement principles, different measurement ranges, and different measurement accuracy levels, the existing altimetry instruments are all special-purpose equipment, which cannot take into account both geographic and object height measurements

[0007] 2. The measurement accuracy of the existing height measuring instruments depends on the levelness of the measurement reference plane. The measuring instruments need to be placed on a stable and flat reference surface, and the measurement of the levelness generally relies on the built-in or external bubble level. The detection accuracy is not high and the adjustment is inconvenient

[0008] 3. The existing height measuring instruments cannot measure the height of characteristic parts such as grooves and holes on parts such as dies and cavities, because the probe is difficult to penetrate

[0009] 4. The measurement process of the theodolite requires the cooperation of multiple people, and the operation is complicated; the measurement process of the height gauge is a contact measurement, which has a lot to do with the experience of the operator, and the repeatability of the measurement results is poor

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