公开(公告)号：US20060044550A1

公开(公告)日：2006-03-02

申请号：US10896462

申请日：2004-07-22

申请人： James McCann ,  Daniel DeVivo ,  Jeffrey Trapp

发明人： James McCann ,  Daniel DeVivo ,  Jeffrey Trapp

IPC分类号： G01N21/41

CPC分类号： G01N21/43 ,  G01N21/274 ,  G01N21/552 ,  G01N2021/1774 ,  G01N2021/414 ,  G01N2201/062

摘要： The present invention relates to ink output in ink jet printing systems. A refractometer is used to control the concentration of inks used in continuous ink jet printers. A concentration detector measures the total amount of light reflected from a surface. Changes in the ink cause a definite change in sensor output. As the refractive index is changed, shifting the critical angle for internal reflection, more or less light is reflected to the sensor. The index of refraction can be determined from the sensor once corrections are made to account for temperature dependencies of the sensor and light source and baseline measurement of reflected light amplitude. These dependencies are carried out in the refractometer.

摘要翻译： 本发明涉及喷墨打印系统中的墨水输出。 折射计用于控制连续喷墨打印机中使用的油墨浓度。 浓度检测器测量从表面反射的光的总量。 墨水变化会导致传感器输出发生明确变化。 随着折射率的变化，移动内部反射的临界角，或多或少的光被反射到传感器。 一旦校正了传感器和光源的温度依赖性以及反射光振幅的基线测量值，就可以从传感器确定折射率。 这些依赖关系在折射计中进行。