【摘要】 用发光二极管和光敏电阻及相应的电路组成测试系统 ,可把管道内的固相颗粒浓度转换成电信号 ,将该电信号与微机的 A /D卡相连 ,可实现连续、高速、多点、在线测量管道内固相颗粒的浓度。更多还原

【Abstract】 The particle concentration of two-phase flow in a vertical tubular leacher may be converted to an electric signal by the metrical system which consists of a photic diode,a photoresistor and a relevant circuit. This signal is linked with the analog-digital converter which is inserted in a microcomputer, then the continuous, high speed, multipoint and on line sampling of the particle concentration is resolved更多还原