公开(公告)号：WO2018025015A1

公开(公告)日：2018-02-08

申请号：PCT/GB2017/052206

申请日：2017-07-28

Applicant: PCME LIMITED

Inventor： UNITT, David Christopher ,  LYE, Trevor Allan ,  GREETHAM, Bruce

IPC: G01N21/53 ,  G01N21/15 ,  G01N15/02 ,  G08B17/107

CPC classification number: G01N15/10 ,  G01F1/74 ,  G01N15/0205 ,  G01N21/15 ,  G01N21/53 ,  G01N2015/0096 ,  G01N2015/1075 ,  G01N2021/536 ,  G01N2201/024 ,  G01N2201/12707 ,  G08B17/107

Abstract: A method and apparatus (1) for monitoring particles flowing in a stack are disclosed. The method comprises emitting light from a light source along an optical path for scattering from the particles, rotating a rotatable monitoring assembly (15) mounted in the optical path, and detecting the scattered light using a detector. The rotatable monitoring assembly (15) contains at least two apertures, and the method further comprises rotating the rotatable monitoring assembly (15) into a plurality of different configurations. In an operation configuration, light passes through the rotatable monitoring assembly (15) and into the stack unimpeded. In a zero-check configuration, the rotatable monitoring assembly (15) blocks the light from reaching the stack. In a span-check configuration, light of varying intensity passes from the light source through the rotatable monitoring assembly (15) into the stack. In a contamination-check configuration, the light is reflected through the rotatable monitoring assembly (15) onto the detector, without entering the stack. In the safety-shutter configuration, the rotatable monitoring assembly (15) protects optical components in the instrument from particles in the stack.

Abstract translation: 公开了一种用于监测堆叠中流动的颗粒的方法和设备（1）。 该方法包括沿着光路从光源发射光以从粒子散射，旋转安装在光路中的可旋转监测组件（15），并且使用检测器检测散射光。 可旋转的监视组件（15）包含至少两个孔，并且该方法还包括将可旋转的监视组件（15）旋转成多个不同的配置。 在操作配置中，光线不受阻碍地通过可旋转监视组件（15）并进入堆叠。 在零检查配置中，可旋转监视组件（15）阻挡光到达堆栈。 在跨度检查配置中，变化强度的光从光源通过可旋转监视组件（15）进入堆叠。 在污染检查配置中，光通过可旋转监测组件（15）反射到检测器上，而不进入堆叠。 在安全快门配置中，可旋转监控组件（15）保护仪器中的光学组件免受堆中的微粒。