ZHANG Xi-jia. Application of laser displacement sensor in the paper thinkness on-line measurement[J]. 2006, (11): 77-78. DOI: 10.13873/j.1000-97872006.11.025.
The principle of paper thickness on-line measurement using displacement differential method based on laser displacement sensor and electric eddy current displacement sensor is introduced.Both hardware design and software design in the measurement system are also presented.The influence of the radial runout of paper roller on the measurement result is completely eliminated.The measurement accuracy of the system is further improved through the calibration of sensors and least square fit of the calibration datum.