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新型FDM快速成型机的样机调试
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作者 高艳芳 豆贺 +2 位作者 佟晗 高瑞林 李小海 《佳木斯大学学报(自然科学版)》 CAS 2017年第4期593-595,619,共4页
通过组装之后的成型机在进行工作之前,需要对样机进行调试,以保证打印的精度。新型FDM快速成型机的样机调试以及通过实物模型的打印来测试调试的效果。先计算样机的电机脉冲数量,通过Arduino软件将固件中有关于电机脉冲的项目进行修改,... 通过组装之后的成型机在进行工作之前,需要对样机进行调试,以保证打印的精度。新型FDM快速成型机的样机调试以及通过实物模型的打印来测试调试的效果。先计算样机的电机脉冲数量,通过Arduino软件将固件中有关于电机脉冲的项目进行修改,然后把修改后的固件上传到控制板中,使用上位机软件进行移动测试;之后再通过对正方体模型进行打印,测量打印精度,并根据测量数据的偏差对电机脉冲数量进行调整。 展开更多
关键词 FDM 快速成型机 Arduino软件 电脉冲数量
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High-Speed Numeral Filter in Impulse Voltage Measurement
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作者 Zheng Xiaodong Wu Weining +1 位作者 Huang Xinghan Wang Min 《Electricity》 2005年第3期37-41,共5页
Since the CPU of embed system has some limitation in operating speed, a new filter was put forward which implemented mountain template convolution by performing rectangle template convolution two times. It can obtain ... Since the CPU of embed system has some limitation in operating speed, a new filter was put forward which implemented mountain template convolution by performing rectangle template convolution two times. It can obtain time and frequency localization with computational complexity greatly reduced. This algorithm was applied to lightning waveforms (include chopped waveforms) parameter calculation. It simplifies the computation and the results pretreated by this algorithm are in accord with IEC1083-2 completely. It was applied in embed system successfully. Its capability in frequency restraining was researched. The validity of the algorithm was proved in theory when processing lightning waves. The standard sources and the processing results are consistent completely. 展开更多
关键词 CONVOLUTION numeral filter impulse wave time and frequency localization WAVELET
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Operation methods of resistive random access memory 被引量:1
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作者 WANG Guo Ming LONG Shi Bing +10 位作者 ZHANG Mei Yun LI Yang XU Xiao Xin LIU Hong Tao WANG Ming SUN Peng Xiao SUN Hai Tao LIU Qi Lü Hang Bing YANG Bao He LIU Ming 《Science China(Technological Sciences)》 SCIE EI CAS 2014年第12期2295-2304,共10页
In this paper, different electrical measurement and operation methods of resistive random access memory (RRAM) have been summarized, including voltage sweeping mode (VSM), current sweeping mode (CSM), co lstant ... In this paper, different electrical measurement and operation methods of resistive random access memory (RRAM) have been summarized, including voltage sweeping mode (VSM), current sweeping mode (CSM), co lstant current stress (CCS), constant voltage stress (CVS), rectangular pulse mode (RPM), and triangle pulse mode (TPM). Meanwhile, the effects of these meas- urement methods on the forming, set, reset and read operation as well as endurance performance have been compared. Finally, their respective controllability of various resistive switching parameters have been summar zeal and analyzed. 展开更多
关键词 resistive random access memory operation method voltage sweeping mode current sweeping mode constant currentstress constant voltage stress rectangular pulse mode triangle pulse mode
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