diff --git a/doc/FerrofluidPump.tex b/doc/FerrofluidPump.tex index 0a70dd4..b147149 100644 --- a/doc/FerrofluidPump.tex +++ b/doc/FerrofluidPump.tex @@ -101,9 +101,9 @@ \section{Related Research} \section{The Idea} -There is no known way to directly move a mass of ferrfluid which is immersed in +There is no known way to directly move a mass of ferrofluid which is immersed in ferrofluid. -The idea of moving a ferrofluid plug or bolus which is bouneded by air or water +The idea of moving a ferrofluid plug or bolus which is bounded by air or water via electromagnets turned on or off is well known. A slight inversion of this idea is to use two boluses to trap a blob of water. The water thus remains a separator. In the diagrams below it is represented as a ``W'', @@ -121,7 +121,7 @@ \section{The Idea} If we reduce this to a minimal configuration, we have a circle of seven regions of equal size. The inlet and the outlet prevent the water blobs from escaping by having permanent magnets in place. The water blobs can never displace these -locks, represented by ``L'' in our diaggram. The inlet of the pump has an +locks, represented by ``L'' in our diagram. The inlet of the pump has an inexhaustible supply of ferrofluid represented as a source (``S''). The outlet is represented as a drain ``D''. @@ -148,21 +148,21 @@ \section{The Idea} \section{A Simple Test Apparatus} -It is easy to source permanent magnets and difficult to source electomagnets with -the precise shapes neede for this project. +It is easy to source permanent magnets and difficult to source electromagnets with +the precise shapes needed for this project. A test apparatus using only permanent magnets moved by hand to match the 4-stroke cylce of the pump should allow us to test the hypothesis that this pump will work and measure flow on a per-cycle basis. -This approach will postpone the need to develop the electromanets. +This approach will postpone the need to develop the electromagnets. We therefore propose to make 3D printed apparatus that has cages for permanent magnets which can be moved into the pump ring and out of the pump ring to simulated turning -an elctromagnet on and off. +an electromagnet on and off. These cages are necessary because strong permanent magnets tend to want to fly into each other and must be carefully constrained. We believe we can furthermore make handles which we can glue to the magnets with hot-melt glue to make the motion of the magnets easier to effect. -We suspect that the magnest will stay in place when in the ring, +We suspect that the magnet will stay in place when in the ring, and have to held when out of the ring, which may require three hands or some dextrous holding. @@ -177,7 +177,7 @@ \section{Motivation} Lawrence Kincheloe suggested this approach: -Ferro fluids could be used for vein massages and pumping by direct injection into the veins. This is predicated on a biocompatible ferro fluid where the lipid shell and nano scale ferride can be adsorbed by the body and act like an iron supplement. The direction of an external magnetic field will direct the ferro fluid to a particular location and could allow for mechanical agitation, and a pumping action using a rhythmic compression and expansion of plasma displacement within the veins. +Ferro fluids could be used for vein massages and pumping by direct injection into the veins. This is predicated on a biocompatible ferro fluid where the lipid shell and nano scale ferride can be absorbed by the body and act like an iron supplement. The direction of an external magnetic field will direct the ferro fluid to a particular location and could allow for mechanical agitation, and a pumping action using a rhythmic compression and expansion of plasma displacement within the veins. \section{Conclusions}