A self-compensating laser liquid level measurement system
A liquid level measurement and self-compensation technology, which is applied in liquid/fluid solid measurement, measuring devices, liquid level indicators, etc., can solve problems such as angle errors, and achieve the effect of fewer external components and accurate and efficient measurement methods
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specific Embodiment approach 1
[0017] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 1. A self-compensating laser liquid level measurement system, which includes a laser (1), a focusing lens (2), an optical filter (3), an imaging lens (4), an industrial camera (CCD) (5), a processing unit (6), inclination sensor (7), such as figure 1 shown. The inclination sensor (7) is installed in the laser liquid level measuring device, and is used for measuring the deflection angle of the laser liquid level measuring device. The laser (1) emits laser light, and the laser beam passes through the focusing lens (2) to form a point light source, and then irradiates on the surface of the measured liquid surface (8) to form a light spot, which is imaged on the industrial camera (CCD) (5). Image processing is carried out in the unit (6), the centroid of the light spot is identified, the displacement of the light spot on the CCD (5) is calculated, and the displacement of the measured liquid level (8) is calculated according ...
specific Embodiment approach 2
[0018] Specific implementation mode two, such as image 3 As shown, when the laser liquid level measuring device is deflected (outward along the vertical paper surface), the working principle is:
[0019] 1. The inclination sensor (2) is installed in the laser liquid level measuring device (1), and is used to measure the deflection angle of the laser liquid level measuring device (1). The light beam (6) emitted by the laser (4) is perpendicular to the groove surface (9), and at this time, the CCD (3) detects that the light spot is at position 1 on the CCD;
[0020] 2. When the laser liquid level measuring device (1) occurs such as figure 2 When deflecting in the indicated direction (outward direction along the vertical paper surface), the angle sensor (2) detects that the angle between the direction of the deflected laser beam (7) and the vertical direction of the measured liquid surface (8) is θ( 5), that is, the deflection angle of the laser liquid level measuring device ...
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