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首页> 外文期刊>Mechatronics, IEEE/ASME Transactions on >Development of a New High-Resolution Angle-Sensing Mechanism Using an RGB Sensor
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Development of a New High-Resolution Angle-Sensing Mechanism Using an RGB Sensor

机译:使用RGB传感器的新型高分辨率角度感应机制的开发

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摘要

A new high-resolution angle-sensing mechanism using a color sensor is presented in this paper. This scheme is based on a red–green–blue (RGB) sensor that measures the radiant-intensity variation of the light reflected off a colored surface. The propagation mechanism for the output of an RGB sensor due to the reflected light's intensity on the cylindrical color track printed with the designated RGB codes from a light-emitting-diode source is discussed. The angle discrepancies due to color-printer characteristics and paper roughness are compensated for by a quarter-error compensation formula and the reference angles using a precision potentiometer. Through the performance verification of the new angle-sensing mechanism with a rotary position-control test bed in frequency and time domains, the feasibility of this new cost-effective noncontact angle-sensing mechanism is demonstrated. The bandwidth of 4.42 kHz, resolution of 0.08°, and nonlinearity of 6.63% are achieved.
机译:本文提出了一种使用色彩传感器的新型高分辨率角度感应机制。此方案基于红绿蓝(RGB)传感器,该传感器测量从彩色表面反射的光的辐射强度变化。讨论了由于从发光二极管源以指定的RGB代码打印的圆柱色轨道上的反射光强度引起的RGB传感器输出的传播机制。由彩色打印机特性和纸张粗糙度引起的角度差异通过四分之一误差补偿公式和使用精密电位计的参考角度进行补偿。通过在频率和时域上对带有旋转位置控制测试台的新型角度感应机构的性能验证,证明了这种新型经济高效的非接触式角度感应机构的可行性。实现了4.42 kHz的带宽,0.08°的分辨率和6.63%的非线性度。

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