自动化走航式全断面积宽法悬移质输沙率测验关键技术的研究

传统悬移质输沙率测验为人工测验方式,耗时耗力、效率低下。由于低效率测验方式的泥沙信息不能满足经济社会发展的需求,只有改革悬移质泥沙测验方式,才能实现悬移质输沙率测验自动化。在南宁水文站开展自动化走航式全断面积宽法悬移质输沙率测验关键技术的研究,根据浊度与悬移质泥沙的相应关系建立模型,将悬移质输沙率测验的含沙量监测,通过由浊度监测转为泥沙监测,达到悬移质输沙率测验自动化的目的。     

自动化走航式全断面积宽法悬移质输沙率测验研究

传统的悬移质输沙率人工测验方式耗时耗力,效率低下。论述了在南宁水文站开展自动化走航式全断面积宽法悬移质输沙率测验的研究过程和方法,通过对应浊度试验传感器悬移质断面平均含沙量的比测,建立新的断沙关系模型;通过对浊度传感器悬移质单样含沙量的比测,建立新的单断沙关系模型。从而实现测流测沙一体化,达到悬移质输沙率自动监测的目的。     

Effect of Internal Antenna Coil Power on the Plasma Parameters in13.56 MHz/60 MHz Dual-Frequency Sputtering

The plasma property of a hybrid ICP/sputtering discharge driven by 13.56 MHz/60 MHz power sources was investigated by Langmuir probe measurement. For the pure sputtering discharge, the low electron density and ion flux, the rise of floating potential and plasma potential with increasing power, as well as the bi-Maxwellian distribution of electron en- ergy distributions （EEDFs） were obtained. The assistance of ICP discharge led to the effective increases of electron density and ion flux, the suppression of rise of floating potential and plasma potential, as well as the change of EEDFs from bi-Maxwellian distribution into Maxwellian dis- tribution. The increase of electron density and ion flux, and the EEDFs evolution were related to the effective electron heating by the induced electric field.