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我矿选矿厂自1970年以来使用光电选矿机。我们从实践中发现它存在一些缺陷。1978年,我们对光电选矿机的线路及振动槽作了改进,效果良好。 (一)线路的改进改进后的光电选矿机使用硅光电池作光敏元件的晶体管无触点开关电路。主要由光电信号输入级、施密特整形电路、射极跟随器、功率输出级等部分组成(见图)。光电信号输入级由2CR系列硅光电池及一级放大器组成;施密特整形电路是将超过一定幅度任何波形的光电信号转换为一定幅度的方波输出;射极跟随器和功率输出级主要将整形电路的输出脉冲进行功率放大,以推动执行机构。改进后提高了选别
Our mine concentrator has been using optical concentrator since 1970. We found from practice that it has some shortcomings. In 1978, we made improvements to the circuit and vibrating trough of the optical concentrator and achieved good results. (A) the improvement of the line Improved photoelectric concentrator using silicon photovoltaic cells as the photosensitive element transistor switching contactless circuit. Mainly by the optical signal input stage, Schmitt shaping circuit, emitter follower, power output stage and other components (see Figure). Optoelectronic signal input stage consists of 2CR series of silicon cells and an amplifier; Schmitt shaping circuit is more than a certain amplitude of any waveform of the photoelectric signal is converted to a certain degree of square wave output; emitter follower and power output stage will be shaped The output pulse of the circuit is power amplified to drive the actuator. Improved improved sorting