Low dispersion, fast response mixing device
A method of dispensing a graded material includes generating droplets of a first working material, the droplets having a size in the range of 10 nanometers to 10 micrometers, adding the droplets of the first working material into a carrier fluid to create a first emulsion, wherein addition of the droplets of the first working material is controlled to create gradient in the emulsion, mixing the first emulsion to create a homogenous, graded mixture, and dispensing the homogenous, graded mixture onto a surface.
1. A method of dispensing a graded material, comprising:
generating droplets of a first working material;
adding the droplets of the first working material into a carrier fluid to create a first emulsion, wherein addition of the droplets of the first working material is controlled to create a gradient in the emulsion;
generating droplets of a second working material;
adding the droplets of the second working material into a second carrier fluid to create second emulsion;
mixing the first emulsion with the second emulsion to create a homogenous, graded mixture;
separating the carrier fluid from the first and second working materials in the homogenous, graded mixture; and
dispensing the homogenous, graded mixture onto a surface.
2. The method as claimed in claim 1 , wherein separating the carrier fluid comprises one of either flowing the fluid through a membrane or evaporating the carrier fluid.
3. The method as claimed in claim 1 , wherein generating droplets of the first working material occurs in a first reservoir, and generating droplets of the second working material occurs in a second reservoir.
4. The method as claimed in claim 3 , further comprising pumping the materials out of the first and second reservoirs into a common channel.
5. The method as claimed in claim 4 , further comprising controlling the pumping to control a ratio of the first working material to the second working material.
6. The method as claimed in claim 4 , wherein pumping the materials comprises using a positive placement pump.
7. A method of dispensing a graded material, comprising:
generating droplets of a first working material, the droplets having a size in the range of 10 nanometers to 10 micrometers;
adding the droplets of the first working material into a carrier fluid containing a second working material to create an emulsion, wherein addition of the droplets of the first working material is controlled to create gradient in the emulsion;
mixing the emulsion to create a homogenous, graded mixture;
separating the carrier fluid out of the homogenous, graded mixture; and
dispensing the homogenous, graded mixture onto a surface.
8. A method of dispensing a graded material, comprising:
generating droplets of a first working material;
providing a second working material in a carrier fluid in a common channel;
injecting the first working material into the second working material in the carrier fluid in the common channel and controlling the injecting to control a ratio between the first working material and the second working material; and
mixing the carrier fluid with the first working material and the second working material to create a homogenous, graded mixture;
separating the carrier fluid out of the homogenous, graded mixture; and
dispensing the homogenous, graded mixture onto a surface.
9. The method as claimed in claim 8 , wherein controlling the injecting comprises controlling a rate of injecting the first working material and controlling a rate of injecting the second working material to control the ratio.