Rotating Construction Laser Single Tilt Sensor Pivotable Platform
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Solution Overview
Problem
Existing rotating construction lasers require multiple tilt sensors for accurate tilt measurement of the axis of rotation, which is inefficient and necessitates periodic recalibration by returning to a level position.
Innovation Solution
A rotating construction laser design that uses a single tilt sensor supported by a pivotable sensor platform, allowing tilt measurement at multiple positions to compute the effective tilt, eliminating errors and enabling continuous operation without recalibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple tilt sensors are used for accurate tilt measurement, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The sensor platform is made dynamically pivotable between at least two defined positions (e.g., first and second positions) around the axis of rotation. This dynamic repositioning allows a single tilt sensor to measure tilt angles from multiple orientations, enabling the system to compute effective tilt values that would otherwise require multiple fixed sensors, thereby reducing device complexity while maintaining measurement precision
Solution Approach 2:
The solution transitions from a static single-position measurement approach to a multi-position measurement approach by adding the dimension of temporal and spatial variation. The sensor platform pivots to different positions (first position, second position, etc.) and measurements are taken at each position, then combined computationally. This dimensional approach allows one sensor to effectively perform the work of multiple sensors
2Measurement precision
If a level sensor and tilt sensor are used for tilt measurement, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The single tilt sensor on the pivotable platform performs multiple functions: it measures tilt angles from different orientations (first position, second position, etc.), and these measurements are combined to compute the effective tilt value. This multi-functional approach replaces the need for separate level sensor and tilt sensor configurations, reducing device complexity while achieving the same measurement precision
Solution Approach 2:
The dynamic pivoting capability of the sensor platform enables the single tilt sensor to adapt its measurement orientation, effectively replacing the need for multiple specialized sensors. The sensor can be positioned dynamically to capture tilt information that would otherwise require separate level and tilt sensing systems
3Measurement precision
If periodic recalibration is performed by returning to level position, then measurement precision is maintained, but productivity decreases
Solution Approach 1:
The system performs preliminary calibration by taking measurements at multiple predefined positions (first position, second position, etc.) on the sensor platform. These preliminary measurements are used to compute calibration parameters and offset values that are then applied during continuous operation. This preliminary action eliminates the need for periodic returns to level position, enabling continuous productivity while maintaining precision
Solution Approach 2:
The invention enables continuous tilt measurement operation without interruption for recalibration. The sensor platform continuously pivots between defined positions and takes measurements, and the control unit continuously computes effective tilt values using the stored calibration parameters. This continuous action maintains measurement precision while eliminating downtime associated with periodic recalibration, thereby improving productivity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design allows for high-accuracy tilt measurement of the axis of rotation using a single sensor, reducing the device's complexity and eliminating the need for periodic recalibration, while maintaining continuous operation and reducing errors from temperature drift and hysteresis.
Implementation Method 1
a tilt sensor for measuring the tilt of the axis. The tilt sensor is supported by a sensor platform being pivotable with respect to the laser unit around the axis between at least two defined pivoting-positions in such a way, that the tilt of the axis is measurable by the tilt sensor in the at least two pivoting-positions
Data Source
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AI summary
The invention relates to a rotating construction laser (1), in particular a self-compensating construction laser. The construction laser (1) comprises a base (2,115) and a laser unit (3,114) for emitting a laser beam (11,83) rotating around an axis (18) of rotation so that the rotating laser beam (11,83) defines a laser plane. Therein, the laser unit (3,114) is built and tiltably arranged to the base (2,115) in such a way, that the axis (18) is tiltable in at least one direction. Furthermore, a tilt sensor (19,96,109) is present for measuring the tilt of the axis (18). According to the invention, the tilt sensor (19,96,109) is supported by a sensor platform being pivotable with respect to the laser unit around the axis (18) between at least two defined pivoting-positions (54,55,70-22) in such a way, that the tilt of the axis (18) is measurable by the tilt sensor (19,96,109) in the at least two pivoting-positions (54,55, 70-22).